IOT747 IDC7 Module

Deskrizzjoni tal-apparat

• Bluetooth 5.2 Modulu Awdjo u Data
• Kmand UART/GPIO
• 11.8mmx18mmx3.2mm form Factor
• Simultaneous Low Energy and Classic Bluetooth
• Qabbad ma 'Apps (iOS/Android/eċċ.)
• aptX, aptX HD, aptX Adaptive, AAC, WBS

Applikazzjonijiet

•  High-End Audio Visual-Prodotti
• Applikazzjonijiet Industrijali tad-Data/Awdjo
• Applikazzjonijiet tal-Karozzi/Ajruspazjali
• Tagħmir tat-telekonferenza
• POS/Bejgħ bl-Imnut Sports/Divertiment Tagħmir

Karatteristiċi

• Audio and High-Speed Data Bluetooth 5.2 Module
• Music Receiver (HFP, A2DP Sink) and Transmitter (AGHFP, A2DP Source)
• Simultaneous Classic and Low Energy Bluetooth
• Multiple Simultaneous Connections and Profiles
• Profiles: HFP, HSP, AG-HFP, A2DP Sink, A2DP Source, AVRCP, BLE, SPP, GATT
• Analog and Digital Audio connection (I2S, PCM)
• Snapdragon Sound (aptX, aptX HD, aptX Adaptive), AAC, Wide Band Speech
• Interface sempliċi UART jew GPIO għall-kontroll
• Small form factor (11.8mm x 18mm x 3.2mm)
• Bluetooth, FCC (US), RED (Ewropa), MIC (Ġappun), KCC (Korea) u SRRC (Ċina) iċċertifikati
• Antenna Esterna

Sommarju
IDC737-1 is ideal for developers who want to quickly and cost effectively integrate high performance Audio and Data Bluetooth functionality into their products. It is controlled through a simple UART or USB interface that also serves for data transmissions. For the Audio, it has Analog or Digital Outputs. The module can connect to multiple devices with multiple profiles. The power consumption is <1mAmp meta konness, <1mAmp in Pairing mode and <6mAmp when streaming music at 3.3V. It is supplied FCC, CE and Bluetooth 5.2 certified. It is also supplied with sample Android and iOS Applications to help integrate the Bluetooth functionality with the product end Application. IDC737-1 features can be also customised for specific complex use cases and scenarios. Please contact info@iot747.com for customisation requests. For additional questions or to submit technical question, go to www.iot747.com jew ibgħat email lil info@iot747.com.

Speċifikazzjonijiet Ġenerali

Nru	Isem tal-Pin
Bluetooth Standard	Bluetooth 5.2
Interfaces	UART, AIO, GPIO, USB, PCM, I2S, I2C
Daqs	11.8mm x 18mm x 3.2mm
Piż	1g
Banda ta' Frekwenza	2,402 MHz sa 2,480 MHz
Modulazzjoni	8 DPSK, PI/4 DQPSK, GFSK
Rata massima tad-Dejta	3Mbps (tipiku 1.6Mbps)
Medda Operattiva	20m
Sensittività RF	0.1% BER f'-96dBm (Tipiku)
Trasmetti l-Qawwa	Max 13dBm
Riżoluzzjoni DAC	16 bits
DAC Out Sample Rata	8 KHz sa 90 KHz
DAC SNR	Class D typ: 99.3dBA, Class A-B typ: 100.9 dBA
Separazzjoni Stereo	Min: 80dB
Provvista Voltage	3.3V sa 4.7 V DC (Jappoġġja batterija Li Ion voltagfirxa e)
Kurrent Tipiku	6mA (Streaming tal-mużika)
Kurrent Tipiku Idle	<1mA (Konnessabbli)
Kurrent Tipiku Skopribbli	<1mA (Modalità Tqabbil)
Temperatura operattiva	-40°C sa 85°C
Temperatura tal-Ħażna	-40°C sa 105°C

Footprint

Pinout 

Nru	Isem tal-Pin	Tip ta ’Brilli	Deskrizzjoni tal-pin
1	GND	GND	Common Ground
2	GND	GND	Common Ground
3	GND	GND	Common Ground
4	GND	GND	Common Ground
5	PIO_21	Bi-direzzjonali	Linja ta 'input/output programmabbli
6	PIO_20	Bi-direzzjonali	Linja ta 'input/output programmabbli
7	PIO_10	Bi-direzzjonali	Linja ta 'input/output programmabbli
8	PIO_60	Bi-direzzjonali	Linja ta 'input/output programmabbli
9	PIO_9	Bi-direzzjonali	Linja ta 'input/output programmabbli
10	PIO_4	Bi-direzzjonali	Linja ta 'input/output programmabbli
11	GND	GND	Common Ground
12	AIO_1	Bi-direzzjonali	Analog programmable input/output line
13	SPKR_LN	Output awdjo	Output tal-ispeaker negattiv, xellug
14	SPKR_LP	Output awdjo	Output tal-ispeaker pożittiv, xellug
15	SPKR_RN	Output awdjo	Output tal-kelliem negattiv, dritt
16	SPKR_RP	Output awdjo	Output ta 'l-ispeaker pożittiv, id-dritt
17	MIC_BIAS_A	Input analogu	Preġudizzju tal-mikrofonu
18	MIC_RN	Input analogu	Microphone input negative, right
19	MIC_RP	Input analogu	Microphone input positive, right
20	MIC_LN	Input analogu	Microphone input negative, left
21	MIC_LP	Input analogu	Microphone input positive, left
22	GND	GND	Common Ground
23	PIO_3	Bi-direzzjonali	Linja ta 'input/output programmabbli
24	PIO_8	Bi-direzzjonali	Linja ta 'input/output programmabbli
25	PIO_7	Bi-direzzjonali	Linja ta 'input/output programmabbli
26	PIO_5	Bi-direzzjonali	Linja ta 'input/output programmabbli
27	GND	GND	Common Ground
28	SYS_CTRL	Dħul diġitali	Take High to Boot Device
29	CHG_EXT	Input tal-ċarġer	External battery charger control
30	VCHG	Input tal-ċarġer	Input tal-Ċarġer tal-Batterija
31	VBAT_SENSE	Sens tal-batterija	Battery Charger Sense
32	VBAT	Battery terminal +ve	Battery Pożittiv
33	VDD_PADS	Provvista	Positive Supply input
34	VCHG_SENSE	Provvista	Charger input sense pin
35	USB_N	Bi-direzzjonali	Dejta USB negattiva
36	USB_P	Bi-direzzjonali	Dejta USB pożittiva
37	LED_2/AIO_2	Bi-direzzjonali	LED Open Drain Driver / Analog/Digital Input
38	LED_4/AIO_4	Bi-direzzjonali	LED Open Drain Driver / Analog/Digital Input
39	LED_5/AIO_5	Bi-direzzjonali	LED Open Drain Driver / Analog/Digital Input
40	UART_CTS	Bi-direzzjonali	UART Clear to Send
41	UART_TX	Bi-direzzjonali	Dejta UART TX

Nru	Isem tal-Pin	Tip ta ’Brilli	Deskrizzjoni tal-pin
42	UART_RX	Bi-direzzjonali	Dejta UART RX
43	UART_RTS	Bi-direzzjonali	UART request to send ,active low
44	RST#	Reset Input with Pull-Up	Reset if low for more than 5ms
45	LED_0/AIO_0	Bi-direzzjonali	LED Open Drain Driver / Analog/Digital Input
46	PCM_SYNC	Bi-direzzjonali	Sinkronizzazzjoni tad-dejta sinkronika
47	PCM_CLK	Bi-direzzjonali	Arloġġ tad-data sinkroniku
48	PCM_OUT	Ħruġ CMOS	Output tad-data sinkroniku
49	PCM_IN	Input CMOS	Input ta' data sinkroniku
50	PIO_2	Bi-direzzjonali	Linja ta 'input/output programmabbli
51	PIO_6	Bi-direzzjonali	Linja ta 'input/output programmabbli
52	GND	GND	Common Ground
53	ANT	RF IO	RF Input/Output connection 50 Ohms
54	GND	GND	Common Ground

Noti:

• PIO_X huma bidirezzjonali b'ġibda dgħajfa 'l isfel
• Irrisettja l-Input huwa b'ġibda qawwija
• USB data positive with selectable internal 1.5kΩ pull up resistor UART are Bidirectional with weak pull up

Linji Gwida tad-Disinn tal-Hardware

L-IDC737 huwa tipikament mħaddem minn provvista fissa ta '3V fejn il-modulu huwa inkluż f'apparat portabbli akbar u l-iċċarġjar tal-batterija huwa appoġġjat minn funzjonalità alternattiva barra mill-mandat tal-IDC737. Dan huwa l-Vol Fissitage Supply Configuration. Alternatively, for portable applications, the module supports an internal charger function where no extra external components are required for charging operation. In this case, the main power is supplied by a battery, typically a Li Po cell with a nominal 3.1-3.3V supply. A 5V charger input, typically supplied by a USB source, is used to charge the battery. The IDC737 integrated Li-Ion charger is designed to support single Li-Ion cells with a wide range of cell capacities and variable VFLOAT voltages. It supports charge rates of 2mA to 200mA with no additional external components required. This is the Battery Voltage Konfigurazzjoni tal-Provvista.

Vol fisstage Konfigurazzjoni tal-Provvista
Għal applikazzjoni ta 'provvista waħda bħala parti minn ċirkwit ta' applikazzjoni portabbli akbar, vol regolattage jista 'jintuża biex iħaddem l-IDC737 direttament. M'hemm l-ebda konnessjoni diretta tal-batterija u l-IDC737 ma jintużax biex jiċċarġja l-batterija.
F'dan il-vol fisstagIl-konfigurazzjoni, il-brilli VBAT, VBAT_SENSE u VDD_PADS huma kollha konnessi ma' vol ta' provvista waħdatage rail. VCHG and VCHG_SENSE and CHG_EXT are left unconnected as per the figure below. Alternatively, we recommend connecting them to test points if possible. Test points can help debug and testing in some cases prior to production.

Pin #	Isem tal-Pin	Konnessjoni	Voltage Input Firxa
29	CHG_EXT	Mhux Konnessi/Punt tat-Test	NA
30	VCHG	Mhux Konnessi/Punt tat-Test	NA
31	VBAT_SENSE	Qabbad mal-Provvista 3.3V	3.0V** sa 4.6V
32	VBAT	Qabbad mal-Provvista 3.3V	3.0V** sa 4.6V
33	VDD_PADS	Qabbad mal-Provvista 3.3V	1.7V sa 3.6V
34	VCHG_SENSE	Mhux Konnessi/Punt tat-Test	NA

** L-apparati jopera sa 2.8V softwer rakkomandat mitfi huwa fi 3.0V

Batterija Voltage Konfigurazzjoni tal-Provvista
In a battery sourced application VBAT and VBAT_SENSE are connected to the battery source, VDD_PADS is driven from a regulated supply external to the module, VCHG and VCHG_SENSE are connected to the charging input source as per the figure below.

Pin #	Isem tal-Pin	Konnessjoni	Voltage Input Firxa
29	CHG_EXT	Mhux Konnessi
30	VCHG	Sors tal-Ċarġer (VBUS)	4.75V * sa 6.5V
31	VBAT_SENSE	Qabbad mal-Batterija	3.0V** sa 4.6V
32	VBAT	Qabbad mal-Batterija	3.0V** sa 4.6V
33	VDD_PADS	Qabbad ma' Provvista regolata ta' 3.3V	1.7V sa 3.6V
34	VCHG_SENSE	Sors tal-Ċarġer (VBUS)	NA

• Can operate at a reduced capacity down to 4.0V, VCHG minimum is 4.0V
• Devices operates down to 2.8V recommended software shut off is at 3.0V
• VDD_PADS huwa ġġenerat minn vol fisstage regolatur f'din il-konfigurazzjoni biex jipprovdi vol kostantitage referenza għad-dominju tal-provvista IO. Meta konness ma 'batterija regolatur sinkroniku buck/boost huwa rakkomandat, iċ-ċirkwit hawn taħt jipprovdi example.

Biex tiffranka l-ispiża ta 'regolatur estern l-input VDD_PADS jista' jiġi konness direttament mal-input tal-batterija sakemm il-periferali diġitali kollha jkunu tolleranti għall-varjazzjoni tal-volum tal-batterijatage fuq il-firxa operattiva kollha tagħha ta '2.8V sa 4.24V (VFloatmax).

Modi tal-Ibbutjar tal-Modulu 

• Jekk l-apparat huwa stat 'Ebda Enerġija' (Ebda voltage applikat għall-modulu), konnessjoni (voltage applikat) għal VBAT jew VCHG se jittrasforma l-modulu minn mhux powered għal Attiv.
• L-apparat jista' jkun ukoll fi Stat 'Power Off' waqt li jkun hemm voltage applikat għal VBAT. L-istat 'Power Off' huwa differenti mill-istat Nru Power minħabba li l-IDC737 għandu voltage fuq VBAT. Fl-istat 'Power Off' l-avvenimenti li ġejjin jibdew iċ-ċippa u transizzjoniha għall-istat Attiv: (1) tarf li jogħla fuq SYS_CTRL miżmum għoli għal 20 ms jew (2) xifer li jogħla fuq VCHG miżmum għoli għal 20 ms. INnota li l-apparat ma jistax ikun f''Power Off' meta voltage is present on VCHG input. The device can transition from Active to ‘Power Off’ with a UART command (See UART Manual) or a rising edge on SYS_CTRL.
• Skont il-konfigurazzjoni tas-software, SYS_CTRL jista' jintuża biex jibbotja l-modulu jew jinxtegħel minn stat ta' rieqed jew ta' rqad. Example application below shows the SYS_CTRL driven by a push button connected to the VBAT supply, pressing the button connects the source voltage via the resistor divider network to the SYS_CTRL input enabling the device. Please refer to the UART Command Manual for the SYS_CTRL function once the module is booted.
• Biex tqum proċessur estern fuq il-Konnessjoni, jistgħu jintużaw PIOs. Bil-kontroll GPIO diżattivat, PIOs se jmorru Għoli meta tiġi stabbilita konnessjoni Bluetooth. Jekk jogħġbok irreferi għall-manwal tal-linja tal-kmand UART għal aktar dettalji.

Protezzjoni ESD
Il-modulu m'għandu l-ebda protezzjoni ESD supplimentari ħlief dik ipprovduta mill-IC fil-modulu. Il-protezzjoni Bluetooth IC ESD hija limitata għal:

• Mudell tal-Ġisem tal-Bniedem Kuntatt Kwittanza skont ANSI/ESDA/JEDEC JS-001
• Klassi 2 – 2kV (il-brilli kollha ħlief CHG_EXT; CHG_EXT ratata għal 1kV)
• Mudell tal-Magni Kuntatt Kwittanza għal kull JEDEC/EIA JESD22-A115 200V (il-brilli kollha)
• Charged Device Model Contact Discharge per JEDEC/EIA JESD22-C101
• Class II – 200V (all pins)
• Huwa rakkomandat li tiżdied protezzjoni ESD supplimentari għal interfaces disponibbli esternament fl-applikazzjoni finali.

GPIOs u UART
Il-modulu huwa kkontrollat ​​minn GPIOs. Dan jista 'jiġi kkonfigurat. Jekk il-kontroll GPIO ma jintużax, dawn il-GPIOs għandhom jitħallew f'wiċċ l-ilma. L-UART awtomatikament ma jużax il-kontroll tal-fluss RTS/CTS. Jekk l-utenti ma jistennewx li jużawha, dawn il-linji għandhom jitħallew f'wiċċ l-ilma.

Stati tal-Pin Diġitali fuq RESET jew wara Power Up
It-tabella li ġejja turi l-Istati tal-Pin Diġitali fuq RESET jew wara li jinxtegħlu.

Pin Isem / Grupp	Tip I/O	Stat wara PowerUp/RESET
USB_DP	Diġitali bi-direzzjonali	N/A
USB_DN	Diġitali bi-direzzjonali	N/A
UART_RX	Diġitali bi-direzzjonali mal-PU	PU b'saħħtu
UART_TX	Diġitali bi-direzzjonali mal-PU	PU dgħajjef
UART_CTS	Diġitali bi-direzzjonali mal-PD	PD dgħajjef
UART_RTS	Diġitali bi-direzzjonali mal-PU	PU dgħajjef
PCM_IN	Diġitali bi-direzzjonali mal-PD	PD dgħajjef
PCM_OUT	Diġitali bi-direzzjonali mal-PD	PD dgħajjef
PCM_SYNC	Diġitali bi-direzzjonali mal-PD	PD dgħajjef
PCM_CLK	Diġitali bi-direzzjonali mal-PD	PD dgħajjef
RST#	Input diġitali bil-PU	PU b'saħħtu
PIO_X	Diġitali bi-direzzjonali mal-PD	PD dgħajjef

PD = Iġbed 'l isfel, PU = Iġbed 'l fuq

Input u Kurrenti Tri-state	Min	Tip	Max	Unità
Ġilda qawwija	-150	-40	-10	μA
Ġbid qawwi 'l isfel	10	40	150	μA
Ġbid dgħajjef	-5	-1.0	-0.33	μA
Ġbid 'l isfel dgħajjef	0.33	1.0	5.0	μA

Interfaces Awdjo

IDC737 jappoġġja interfaces awdjo analogi u diġitali ta 'kwalità għolja appoġġjati minn proċessur ta' applikazzjoni awdjo, codecs awdjo analogi u diġitali ta 'prestazzjoni għolja li jsuqu sewwieqa tal-headphones tal-Klassi AB u tal-Klassi D.

Inputs Awdjo Analogu
Il-pinnijiet tal-input analogu tal-IDC737 jappoġġjaw konfigurazzjonijiet ta 'input mono, stereo u line-in, single ended u differenzjali. L-ADCs interni ta 'Kwalità Għolja ta' 24bit jappoġġjaw input massimu voltage of 2.4V (at 0dB gain) and provides over 60dBs of digital and analogue gain with a minimum 80dB of stereo separation (crosstalk). An integrated microphone bias driver with a tuneable bias voltage range from 1.5V to 2.1V delivers up to 3mA of bias current with a typical output noise of 5uVrms suitable for driving most Electret and MEMS microphones.

The analogue audio input is configured via the software API and supports 4 standard modes

• Dual differential
• Doppju b'tarf wieħed mhux invertit (inputs pożittivi)
• Doppju single-ended maqlub (inputs negattivi)
• Differenzjali waħdieni

Or each input can be configured individually for differential or single ended microphone or line-in input configuration. Analogue audio inputs should be AC coupled with a minimum of 2.2uF capacitor, capacitor values below this degrade the low frequency response.

Gwadan Analoġiku
Pre-amplifier qabel l-HQADC jipprovdi 0-39dB ta 'gwadann programmabbli f'passi ta' 3dB. F'0dB jiksbu l-preamplifier input massimu voltage swing huwa 2.4V hekk kif il-qligħ iżid il-volum tal-inputtage swing must reduce to avoid compressing the ADC. The table below shows the maximum recommended analogue input voltage swing vs analogu preampsettings tal-gwadann tal-lifier.

Gwadan Analoġiku	Impedenza tad-dħul (kΩ)	Input amplititudni (mVpk-pk)
0	20	2400
3	20	1699
6	20	1203
9	20	852
12	20	603
15	20	427
18	20	302
21	20	214
24	20	151
27	10	107
30	10	76
33	10	54
36	10	38

39

10

27

Għal applikazzjonijiet ta' input line-in huwa rakkomandat gwadann ta' 0dB

Example Skematika tal-Applikazzjoni
IDC737 Xbieki Awdjo Analoġiċi

L-inputs analogi kollha huma akkoppjati DC u għandhom ikunu akkoppjati esternament ac għal tħaddim korrett.

Stereo Line In
Jack awdjo wieħed b'4 arbli jipprovdi kanali awdjo L u R:

Mono Line In
Żewġ ġakkijiet tal-awdjo b'2 arbli li jipprovdu kanali tal-awdjo indipendenti

Jack awdjo wieħed b'2 arbli li jipprovdi sors ta 'awdjo mono wieħed, inputs mhux użati huma ertjati AC

Input tal-mikrofonu
Mikrofoni Doppju

Xi mikrofoni jistgħu jeħtieġu kapaċità ta 'tagħbija ogħla, f'liema każ kapaċitur massimu ta' 2.2uF jista 'jiġi miżjud madwar MIC_BIAS b'reżistenza ta' valur 10R imdaħħal bejn il-MIC_BIAS_A u l-mikrofonu kif hawn taħt:

Jekk jintuża mikrofonu wieħed, l-inputs analogi mhux użati għandhom ikunu AC akkoppjati mal-art.

Mikrofonu MEMS Jekk jintuża mikrofonu wieħed, l-inputs analogi mhux użati għandhom ikunu AC akkoppjati mal-art.

Outputs Awdjo Analogu
L-outputs tal-headset/kelliem tal-Klassi D u tal-Klassi AB tal-IDC737 huma outputs differenzjali stereo li kapaċi jmexxu direttament 30 mWrms f'tagħbijiet tal-kelliem ta '32 Ω jew 16 Ω. It-tħaddim tal-Klassi D jippermetti konsum ta 'enerġija mnaqqas, ideali għall-applikazzjonijiet tal-headset, il-modulazzjoni BD ta' 3 stati tagħha tippermetti konfigurazzjoni mingħajr filtru, fejn il-biċċa l-kbira tas-sewwieq analogu jitneħħa, jappoġġja tagħbijiet differenzjali tal-headphones ta '16 Ω/32 Ω.

Biex tinkiseb l-aħjar prestazzjoni tal-awdjo f'applikazzjonijiet ta' drajv dirett id-DACs għandhom joperaw f'qrib il-volum massimu tal-outputtage of 1Vrms. This can be achieved by adding source resistors between the output terminals and the speaker driver, the value of which are double the rated speaker impedance. i.e., for 16Ω speakers use 32Ω resistors, for 32Ω speakers use 64Ω resistors. Class-AB operation enables either headphone or speaker applications, with higher impedance loads such as differential line out or for driving an external power amplifier. Għal tali applikazzjonijiet li jeħtieġu enerġija esterna amplifiers, the output should be filtered using a 30 kHz RC low pass filters as shown in the application schematic below:

Jistgħu jintużaw aktar iffurmar tal-istorbju biż-żieda ta’ capacitor li jimblokka DC bejn il-filtru tad-dħul u r-reżistenza tad-dħul tal-awdjo amplifier. Dan jifforma filtru high pass li għandu frekwenza ta 'qtugħ ta' 3dB deskritta mill-ekwazzjoni hawn taħt.

It-tqassim rakkomandat għall-outputs tal-awdjo analogu huwa li tuża rotta differenzjali, li żżomm iż-żewġ kanali iżolati minn xulxin u minn ċirkwiti sensittivi oħra.

The IDC747 DK1 board (which has the IDC747 module which is similar to the IDC737 but with an integrated Antenna) uses an external audio amplifier għal skopijiet ta' dimostrazzjoni ta' applikazzjoni awdjo. Meta tuża awdjo estern amplifier, it is important to follow the manufacturers recommended circuit and layout guidelines to achieve the best possible audio experience. Always use a high-quality audio amplifier idealment b'ċirkwiti ta 'soppressjoni tal-ikklikkja u pop mibnija pulzieri Dawn amplifiers use noise suppression and soft start techniques to filter supply noise and transients as well as minimising ground loop currents and DC offsets that can cause degraded audio effects. Some amplifiers saħansitra jimpjegaw tekniki ta 'sensing u trażżin tal-art biex jimminimizzaw u jneħħu l-akkoppjar tal-istorbju mal-mogħdija tal-awdjo.

Fl-example ampċirkwit lifier muri fuq il amplifier audio ground is connected to the main ground via a single “star” point at the audio output jack. This is suitable for connection to headphones where noise from external sources are not expected. When connecting to external devices such as laptops in a “Line In” configuration there is a possibility that the sleeve of the audio cable can carry noise derived from the laptop. Also external devices connected through the audio cable sleeve can have different ground potentials which causes currents to flow through the sleeve ground. In this case it is important to isolate the sleeve ground from the audio amplifier biex tiġi evitata l-akkoppjar tal-ħoss għall- amplifier and degrading the signal source. In this case add a filter circuit or ferrite bead connecting the sleeve ground to the ground on the application board as shown below.

Xi wħud amplifiers ma jappoġġjawx operazzjoni "mingħajr għata" u jeħtieġu akkoppjar ac fuq id-dħul u l-ħruġ tal- amplifier. Il-kapaċità tas-serje tista 'tintroduċi klikks u pops waqt itfi u tixgħel bħala voltage transients occur across the capacitors causing audible spikes on the audio output. Choice of capacitors used in these configurations is important, avoid using ceramic capacitors as these tend to have high voltage koeffiċjenti. Uża vol baxxtage koeffiċjenti capacitors bħal tantalu jew capacitors elettrolitiċi biex inaqqsu l-effetti ta ' distorsjoni ta ' frekwenza baxxa.

Fil-modalità differenzjali it-tolleranza tas-sors u r-reżistenzi ta 'feedback li jistabbilixxu l-gwadann ta' an amplifier huwa importanti. 1% resistors jagħtu 40dB CMRR (Common Mode Rejection Ratio) filwaqt li 0.1% resistors jagħtu 60dB CMRR. Uża 0.1% resistors fejn possibbli.

Konfigurazzjoni tal-provvista USB:
In many applications supply noise can significantly degrade audio performance. This is especially true in USB powered applications or where a USB source is used to charge a battery powered application. USB sources have varying noise levels and in addition to steady state noise levels, the plugging and unplugging of USB chargers can cause large supply transients that ripple through the power supply chain to cause clicking and popping in the audio domain. It is recommended to follow good noise immunity pcb design practices, ground isolation, short residual current return paths and the use of ferrite bead and large decoupling capacitors on USB supply connections.

Eżample konfigurazzjoni tal-provvista USB hija murija hawn taħt.

Interfaces Awdjo Diġitali
The IDC737 supports digital microphones as inputs, and interfaces to external audio devices via a standard I2S/PCM interface. Up to eight channels of digital microphone inputs are supported. These are grouped as four pairs, as most digital microphones support a L/R selection pin which allows for the clocking of two microphones from the same clock, with one being sampled on the rising clock edge and the other on the falling clock edge Eight digital microphone clock frequencies can be generated. Configurable at: 500 kHz, 571 kHz, 666 kHz, 800 kHz, 1 MHz, 1.33 MHz, 2 MHz, and 4 MHz clock frequencies. The digital microphone, CLK and Data functions can be mapped to any PIO on the module.

I²S/PCM
IDC737 provides a standard I²S/PCM interface capable of operating at up to a 384 kHz samprata le. Il-port I²S/PCM huwa konfigurabbli ħafna b'modi PCM alternattivi, u għandu l-għażliet li ġejjin:
Il-pożizzjoni tat-tarf SYNC tista' tagħżel biex tallinja mal-bidu tad-dejta tal-kanal (modalità PCM), jew arloġġ 1 qabel il-bidu tal-kanal

• data (mod I²S)
• Master (iġġenera CLK u SYNC) jew Slav (irċievi CLK u SYNC) (PCM/I²S)
• Polarità SYNC (PCM)
• SYNC twil jew qasir (PCM)
• Ġustifikazzjoni tax-xellug jew tal-lemin (PCM/I²S)
• Estensjoni tas-sinjali / kuxxinett żero (PCM)
• Tri-state fakultattiv fl-aħħar tal-kelma (PCM)
• Invertit fakultattiv tal-arloġġ (PCM/ I²S)
• 13/16/24-bit kull sample (PCM/ I²S)
• Sa erba' slots għal kull qafas (PCM)

The I2S/PCM interface is available on dedicated pins 47-49 see the Pin Out table on pages 5 and 6 for details. A Master Clock (MCLK) function for synchronising external devices is not supported on IDC737.

Solder Reflow Profile

L-istann profile huwa deskritt hawn taħt.

• Żona A: Preheat: Dan jgħolli t-temperatura b'rata kkontrollata, tipikament 0.5 – 2C/s. Dan se saħħan minn qabel il-komponent għal 120 ° C sa 150 ° C biex iqassam is-sħana b'mod uniformi lill-PCB.
• Zone B: Equilibrium1: In this zone, the flux becomes soft and uniformly spreads solder particles over  the PCB board, preventing re-oxidisation. The recommended temperature for this zone is 150°C to 200°C for 60s to 120s.
• Żona C: Equilibrium2: Dan huwa fakultattiv u sabiex issolvi l-kwistjoni tal-komponent wieqfa.
• It-temperatura hija 210°C sa 217°C għal 20s sa 30s.
• Żona D: Żona ta 'rifluss: It-temperatura għandha tkun għolja biżżejjed biex tevita t-tixrib iżda baxxa biżżejjed biex tevita d-deterjorazzjoni tal-komponent. L-ogħla temperatura rakkomandata hija 230°C sa 250°C. Il-ħin tal-issaldjar għandu jkun 30s sa 90s meta t-temperatura tkun 'il fuq minn 217 °C.
• Żona E: Tkessiħ: Ir-rata tat-tkessiħ għandha tkun mgħaġġla biex iżżomm il-ħbub tal-istann żgħar li se jagħtu ġonta li ddum aktar. Rata ta' tkessiħ tipika hija 4°C/s.

Ċertifikazzjonijiet Regolatorji

Konformità Regolatorja ISED
Dan l-apparat fih trasmettitur(i)/riċevitur(i) eżentati mil-liċenzja li jikkonformaw mal-RSS eżentati mil-liċenzja tal-Innovation, Science and Economic Development Canada. It-tħaddim huwa soġġett għaż-żewġ kundizzjonijiet li ġejjin:

1. Dan l-apparat ma jistax jikkawża interferenza.
2. Dan l-apparat għandu jaċċetta kwalunkwe interferenza, inkluża interferenza li tista' tikkawża tħaddim mhux mixtieq tal-apparat.

This equipment complies with FCC/IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The IDC747 module (which is the IDC737 with an integrated antenna) is delivered with FCC, CE and Bluetooth SIG certifications. This allows to integrate the module in an end product without the need to obtain subsequent and separate approvals from these regulatory agencies. This is valid in the case no other intentional or un-intentional radiator components are incorporated into the product. Without these certifications, an end product cannot be marketed in the relevant regions. Since the IDC737 is the IDC747 but with an external antenna, it potentially can be certified using the IDC737 in case a similar antenna is used. Please refer to a testing house to confirm the specifics for your design. The text bellow is for the IDC747.

L-Istati Uniti - FCC
In case no other intentional or un-intentional radiator is incorporated, the module’s FCC certification allows users to integrate the module into products without the need to obtain subsequent and separate approval. The module is supplied approved as “intentional transmitter radio module” by the United States’ Federal Communications Commission (FCC) with accordance to CFR47 Telecommunications Part 15, Subpart C, section 212. This certification is applicable in all the states in the United States. The certification allows products to be listed in the NRTL (National Recognized Test Laboratory) as appointed by OSHA (Occupational Safety and Health Administration).

Label and Documentation:
The module has been labelled with its own FCC ID number. In order to the extend the certification granted to the module, its FCC ID number must be displayed on the finished product in which the module is integrated. The following wording should be used “Contains Transmitter Module FCC ID: 2A3WYID7” or “Contains FCC ID: 2A3WYIDC7”.

The user-manual for any product in which the module is integrated in must include the following statements: 
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna; Increase the separation between the equipment and receiver; Connect the equipment into an outlet on a circuit different from that to which the receiver is connected; Consult the dealer or an experienced radio/TV technician for help.

Dan l-apparat jikkonforma mal-Parti 15 tar-Regoli tal-FCC. It-tħaddim huwa soġġett għaż-żewġ kundizzjonijiet li ġejjin:
Bidliet jew modifiki mhux approvati espressament mill-parti responsabbli għall-konformità jistgħu jħassru l-awtorità tal-utent biex iħaddem it-tagħmir.

 

For further information regarding the FCC certification requirements please review dan li ġej websiti:

Kummissjoni Federali tal-Komunikazzjoni (FCC):
http://www.fcc.gov
Database tal-Għarfien tad-Diviżjoni tal-Laboratorju tal-Uffiċċju tal-Inġinerija u t-Teknoloġija (OET) tal-FCC (KDB): http://apps.fcc.gov/oetcf/kdb/index.cfm

Europe – CE and RoHS Marking
In case no other intentional or un-intentional radiator is incorporated, the module’s CE marking certification allows users to integrate the module into products without the need to obtain subsequent and separate CE approval. The module has been tested and granted approval as R&TTE Directive product under the 1999/5/EC Essential Requirements for Health and Safety (Article (3.1(a)), Electromagnetic Compatibility, (EMC) (Article 3.1(b)), and Radio (Article 3.2). A Notified Body Opinion has been issued.

The module has also been tested and granted approval under the directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment 2002/95/EC (commonly referred to as the Restriction of Hazardous Substances Directive or RoHS). This certification ensures the module is environmentally safe and free from hazardous substances (including Lead). Both certifications are applicable in all the 27 countries of the European Economic Area.

Labelling and Documentation
The certification number is STCT2216-EU. The RoHS certification does not dictate any specific product labelling. However, we recommend marking the product with a “RoHS Compliant” statement. R&TTE Directive requires a manufacturer to establish technical documentation. It must be kept by the manufacturer or his authorised representative in the EU for at least 10 years after the last product has been manufactured. The documentation must cover: A general description of the product, conceptual design and manufacturing drawings and schemes of components, sub-assemblies, circuits and other design documentation, descriptions and explanations necessary for the understanding of said drawings and schemes and the operation of the product, a list of the standards referred to in Article 5, applied in full or in part, and descriptions and explanations of the solutions adopted to meet the
essential requirements of the Directive where such standards results of design calculations made, examinations carried out, etc., test reports.

Test reports must include the following table containing the module tests:

Ċertifikazzjoni	Standards	Artikolu	Laboratorju	Rapport Numru	Data
Sigurtà	EN IEC 62368- 1:2020+A11:2020	(3.1(a))
Saħħa	EN 50663:2017 EN 62479:2010
EMC	MT 301 489-17 V3.2.4 MT 301 489-1 V2.2.3	(3.1(b))
Radju	MT 300 328 V2.2.2	(3.2)

• For further labelling and CE marking requirements please review the R&TTE Compliance Association Technical Guidance: http://rtteca.com/
• For further information regarding the R&TTE certification requirements please review dan li ġej websiti:
• Radio and Telecommunications Terminal Equipment (R&TTE):  http://ec.europa.eu/enterprise/rtte/index_en.htm
• Konferenza Ewropea tal-Amministrazzjonijiet tal-Posta u tat-Telekomunikazzjoni (CEPT):  http://www.cept.org
• Istitut Ewropew tal-Istandards tat-Telekomunikazzjoni (ETSI): http://www.etsi.org
• European Radio Communications Office (ERO): http://www.ero.dk

Informazzjoni dwar l-Ordni

Numru tal-Ordni	Deskrizzjoni
IDC737-1	Modulu Bluetooth

Modules are shipped Flashed with the latest AudioAgent firmware production build. Customers need to confirm at order with distributors that they will receive the firmware build they require. For volume orders (1k quantities), modules can be shipped flashed with custom firmware. Please inquire with info@iot747.com għal aktar informazzjoni.

Ippakkjar

Il-moduli jintbagħtu f'Tape u Rukkell. Il-pakkett u d-dimensjonijiet ta 'ġewwa tat-tejp u tar-rukkell huma murija hawn taħt:

Noti Ġenerali
Il-prodotti IOT747 mhumiex awtorizzati għall-użu f'applikazzjonijiet ta' appoġġ għall-ħajja jew applikazzjonijiet kritiċi għas-sigurtà. L-użu f'dawn l-applikazzjonijiet isir fid-diskrezzjoni unika tal-klijent. IOT747 mhux se jiġġustifika l-użu tal-apparat tiegħu f'dawn l-applikazzjonijiet.
While every care has been taken to ensure the accuracy of the contents of this document, IOT747 cannot accept responsibility for any errors. IOT747 reserves the right to make modifications, corrections and any other changes to its products at any time. Customers should obtain the latest information before placing orders. IOT747 other products, services and names used in this document may have been trademarked by their respective owners. The publication of this information does not imply that any license is granted under any patent or other rights owned by IOT747. Refer to www.iot747.com for more information. IOT747® is a trading name for Company Deep Limited.

Log Bidla

•  6/1/2021: Abbozz tal-Verżjoni
• 9/4/2021: Korrezzjonijiet Minuri / Typos – Informazzjoni miżjuda fil-paġna ta’ quddiem
• 20/7/2021: Konfigurazzjonijiet tal-Provvista Iċċarati. Miżjuda Punti tat-Test għall-Provvista Fiss
• 21/7/2021: Konfigurazzjoni Simplifikata tal-Provvista – Tneħħew Stati tal-Enerġija dettaljati. Referenzi mħassra għal SPI kif użati biss f'IDC707.
• 20/1/2022: Żieda dettalji taċ-ċertifikazzjoni u konnessjoni tal-Provvista tal-Enerġija kkoreġuta b'Pinijiet korretti.

IOT747, 122 Ross Street, Cambridge, CB1 3BU, United Kingdom Check www.iot747.com għal aġġornamenti.

• Email: info@iot747.com

FAQ

• Q: Can the IDC737-A module connect to multiple devices simultaneously?
  A: Yes, the module can connect to multiple devices with multiple profiles fl-istess ħin.
• Q: What are the recommended applications for IDC737-A?
  A: The module is suitable for High-End Audio Visual-Products, Industrial Data/Audio Applications, Automotive/Aerospace Applications, Teleconference Equipment, POS/Retail, and Sports/Leisure Equipment.

Dokumenti / Riżorsi

IOT747 IDC7 Module [pdfManwal tas-Sid IDC737-A, IDC7 Module, IDC7, Module

Referenzi

• Manwal għall-Utent