msm7708-02 Oki Semiconductor, msm7708-02 Datasheet
msm7708-02
Related parts for msm7708-02
msm7708-02 Summary of contents
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... Serial Register Interface ADPCM CODEC for Telephone Recording GENERAL DESCRIPTION The MSM7708- CMOS IC developed for applying to PHS (Personal Handyphone System). This device provides a CODEC function which performs transcoding between the voice band analog signal and 32 kbps ADPCM data. It also provides a serial register interface function for telephone call recording ...
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... PWI VFRO RC SAO Filter To various units A/D BPF Converter ATT DTMF /Tone Generator ATT D/A LPF + + Converter ATT Noise Power Generator Detect MSM7708-02 EXCK DEN MCU DIN Interface DOUT RESET Voice VOXO Detect IS Compan- ADPCM der PCMSI Coder PCMSO XSYNC P/S & BCLK S/P RSYNC ...
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... NC 2 SAO VFRO 6 PWI 7 AOUT– 8 AOUT+ 9 SGR SGT 12 AIN1– 13 GSX1 14 AIN connect pin 64-Pin Plastic TQFP MSM7708- PCMSO 46 PCMSI PCMRO 40 PCMRI MCK PDN 37 RESET 36 35 DOUT 34 DIN 33 NC ...
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... Address and data input for control 35 DOUT O Data output for control register RESET RESET control input for control register 36 I PDN 37 I Power down control input 38 MCK I Master clock input — No connection PCMRI I Receive side PCM signal input MSM7708-02 Description 4/38 ...
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... Serial register data clock output TAS 58 O Serial register transfer address-strobe output SAS 59 O Serial register address-strobe output 60 SAD O Serial register address data output 61 NC — No connection Serial register write enable output 63 DIO I/O Serial register data input/output 64 NC — No connection MSM7708-02 Description 5/38 ...
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... Used for the receive analog output and the output for receive gain adjustment. VFRO is an output of the receive filter. AOUT+ and AOUT– are differential analog signal outputs = 350 W+120 nF or the 1.2 kW load. Gain adjustment should be which can directly drive Z L referred to Fig. 1. These outputs are in high impedance state during power down. MSM7708-02 6/38 ...
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... Transmit gain : (V /V GSX2 I = (R2/R1) ¥ (R4/R3) Receive gain : ( VFRO = 2 ¥ (R6/R5) Sounder output signal AIN1– – AIN1 GSX1 SGT AIN2 – GSX2 AOUT+ –1 – AOUT– PWI R5 ) VFRO SAO Figure 1 Analog Interface MSM7708-02 Reference voltage generator to ENCODER from DECODER 7/38 ...
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... When set to digital "0," each bit of the control register is reset and the internal circuit changes to the power down state. During normal operation, set this pin to digital "1". MCK Master clock input. The clock frequency is 19.2 MHz. MCK can be asynchronous with XSYNC, RSYNC, and BCLK. MSM7708-02 8/38 ...
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... This signal should be synchronized with BCLK. XSYNC is used for indicating the MSB of the transmit serial PCM and ADPCM data stream. RSYNC 8 kHz synchronous signal input for receive PCM and ADPCM data. This signal should be synchronized with BCLK signal. RSYNC is used for indicating the MSB of the receive serial PCM and ADPCM data stream. MSM7708-02 9/38 ...
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... Receive Side Voice/Silence Detect Function Timing Diagram Note: The VOXO and VOXI pin functions are enabled when CR6 - B7 is set to "1". Figure 2 Voice/Silence Detect Function Silence Silence Detection Time (Hangover Time) T VXOFF Silence Internal Background Noise Generation Time MSM7708-02 Voice Voice 10/38 ...
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... For the control method, refer to the control register description (CR1). Since these signals are ORed with CR1 - B2, B1, and B0 internally, set these register data to "0" when using this pin High Impedance (a) Write Data Timing Diagram (b) Read Data Timing Diagram MSM7708- 11/38 ...
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... LVL1 LVL0 ST1 ST2 ST3 ST4 ST9 ST10 ST11 ST12 SPY1 SPY2 SPY3 SPY4 SP1 SP2 SP3 SP4 SP9 SP10 SP11 SP12 CH1 CH2 CH3 CH4 MSM7708-02 R SA,VF SAO/ AOUT R/W OUT VFRO PON R/W MLV2 MLV1 MLV0 R/W GAIN2 GAIN1 GAIN0 ...
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... Connect this pin to the RWCK pin of the serial register and to the RDCK pin of the serial voice ROM. CS1, CS2 CS1 and CS2 are chip select pins. Connect CS1 to the CS pin of the serial register, and CS2 to the CS pin of the serial voice ROM. MSM7708-02 13/38 ...
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... BCLK, EXCK BCLK´XSYNC XS BCLK´RSYNC RS XSYNC, RSYNC Fig — — DH MSM7708-02 Rating Unit –0 –0 0.3 DD –0 0.3 DD –25 to +70 –55 to +150 = 2 3 –25°C to +70°C) DD Min. Typ. Max. Unit 2.7 — 3.6 0.45 ¥ ...
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... 0.4 mA OH1 OH2 –1 (IS pin is pulled up with OL 500 W resistor pin O C — IN MSM7708- –25°C to +70°C) DD Min. Typ. Max. Unit — 6.0 11.0 mA — 0.02 0 — — 2.0 mA — — 0.5 0.5 ¥ V — V ...
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... C load = 50 pF Fig EXCK — EXCK MSM7708- –25°C to +70°C) DD Min. Typ. Max. Unit 10 — — — — 1.2 — — — — 100 — — 100 — ...
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... CRW t Reset CRR Setup time t BSR Fig Valid time BSH Setup time t RPR Hold time after t RPF stop command MSM7708- –25˚C to +70˚C) DD Min. Typ. Max. Unit — — 200 ns — — 200 ns ms — — — ...
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... MSM7708- –25°C to +70°C) DD Min. Typ. Max. Unit 25 — — –0.15 — +0.20 Reference –0.15 — +0.80 0 — 0.80 13 — — –0.15 — ...
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... DTMF (high group), other DTMF (low group) DTMF (high group), other / Condition (V Condition VOXO pin: See Fig. 2 Voice/silence differential MSM7708- –25°C to +70°C) DD Min. Typ. Max. Unit –68 — — (–75.7) dBmOp –72 (dBmp) — — (–79.7) ...
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... XD3 LSB LSB MSM7708- XD3 LSB XD3 RD3 LSB ...
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... Record/Playback Mode Timing DEN EXCK DIN X X (CR5) (PLAY/REC) CR5-(B1, B0) RPM Serial Register I/F Figure 6 Serial Register Interface ( CRW t BSR Address Data Transfer t BSH ( CRW t RPR Record/Playback Data Transfer MSM7708-02 ( CRR "1" "1" (STOP) ( CRR t RPF 21/38 ...
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... AOUT+, – power down 1: AOUT+, – power PDN PDN PDN — ALL Power ON 0: Power ON 0: Power ON 1: SAO MSM7708- SA, VF SAO/ AOUT OUT VFRO PON m-law1: A-law 1: Power down 1: Power down 1: Power down 22/38 ...
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... ON/OFF MUTE Mute operation set by B2 available, provided this bit is valid when MUTE pin is "0" MSM7708- MLV2 MLV1 MLV0 MUTE 0: ON ...
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... MSM7708- GAIN2 GAIN1 GAIN0 Receive Side Gain 0 0 – – – – – ...
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... B3 B2 – – – – – – – – MSM7708- TONE TONE TONE GAIN2 GAIN1 GAIN0 Tone Generator Gain 0 0 – – – –14 dB ...
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... B4 B3 TONE5 TONE4 TONE3 Description MSM7708- TONE2 TONE1 TONE0 Description 852 Hz + 1209 852 Hz + 1336 852 Hz + 1477 852 Hz + 1633 941 Hz + 1209 ...
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... 500 600 700 800 900 1000 MSM7708-02 Description 1100 1200 1300 1400 1500 1600 ...
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... REC (Recording) ( STOP (Stop OFF VOX LVL0 TIME (0,1): –25 dBm0 (1,1): –35 dBm0 1: External (by B1, B0) setting (0,1): –55 dBm0 (1,1): –35 dBm0 MSM7708- — CMD1 CMD0 NOISE RX NOISE RX NOISE IN LEVEL SEL LVL1 LVL0 0 ...
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... Monitors address read and write operation of serial register interface. 0: Stop B0: .............. Monitors serial register recording or playback. 0: Stop Silent Level — — (0,1): –50 to –60 dBm0 (1,1): Above –40 dBm0 1: Read or Write 1: Recording or playing back MSM7708- — Busy RPM Silence 1: Voice 29/38 ...
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... ST12 SPY2 SPY3 SPY4 SP2 SP3 SP4 SP10 SP11 SP12 MSM7708- ST5 ST6 ST7 — — — SPY5 SPY6 SPY7 SP5 ...
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... transferred from CR8 - CR12 to serial register channel index area. After transfer, this bit is reset to "0". Note : Writing to ADRD and ADWT is inhibited when BUSY (CR7 - B1) or RPM (CR7 - B0) is "1" CH2 CH3 CH4 MSM7708- — ADRD ADWT 31/38 ...
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... (MSM63V89C) (MSM6684) 1K words 4K words 000h to 3FFh 0000h to 0FFFh channel index area (32 words ¥ Kb) ADPCM (voice) data area direction 1 word = address 00h 01h 4 bit 4 bit MSM7708- (MSM6685) 8K words 0000h to 1FFFh FEh FFh 4 bit 4 bit 32/38 ...
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... Start X address (ST0 to ST12) Stop Y address (SPY0 to SPY7) Stop X address (ST0 to SP12) Figure 8 Channel Index Area of the Serial Register Blank data 16-bit Stop X address ST0 ST1 ST11 ST12 SPY0 SPY1 SP0 SP1 SP11 SP12 MSM7708-02 — — — SPY6 SPY7 — — — 33/38 ...
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... BUSY = 0? Y REC N RPM = 1? Y STOP N RPM = 0? Y Channel setting (ADWT) N BUSY = RPM = 0? Y END Figure 9 Flow Chart of Recording MSM7708-02 (1) CR5 (2) CR8 to CR12 (3) CR13 (4) CR7 (5) CR5 Recording start (6) CR7 Recording start check (7) CR5 Recording stop CR13 CR7 (8) CR7 Recording completion check 34/38 ...
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... Voice ROM Channel setting (ADRD) ST, SP address setting N BUSY = 0? Y PLAY N RPM = 1? Y STOP N RPM = 1? Y END Figure 10 Flow Chart of Playback MSM7708-02 (1) CR5 (2) CR13 (3) CR8 to 12 (4) CR7 (5) CR5 Playback start (6) CR7 Playback start check (7) CR5 Playback stop (8) CR7 Playback completion check 35/38 ...
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... B7 = "0" + REC) ADPCM DE-CODER A-OUT Serial register Figure 11 Signal Flow in Transmit/Receive Side Recording/Playback Transmit-side playback (CR5 – "1" + PLAY) IS (ADPCM-OUT) A-IN Receive-side playback (CR5 – "0" + PLAY) IR (ADPCM-IN) A-OUT MSM7708-02 IS (ADPCM-OUT) ADPCM CODER Serial register IR (ADPCM-IN) ADPCM DE-CODER Serial register 36/38 ...
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... R6/R5 AOUT– 120 Receiver output 350 W AOUT+ Sounder output SAO MCK PDN RESET Basic EXCK control DEN DIN DOUT MSM7708 500 W ADPCM IS transmit data PCMSI PCMSO ADPCM IR receive data PCMRO PCMRI BCLK XSYNC YSYNC VOXO ADPCM VOXI control MUTE ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM7708-02 (Unit : mm) Package material Epoxy resin ...