MSM7704-01 Oki Semiconductor, MSM7704-01 Datasheet
MSM7704-01
Related parts for MSM7704-01
MSM7704-01 Summary of contents
Page 1
... Designed especially for a single-power supply and low-power applications, these devices contain two-channel AD/DA converters in a single chip and achieve a reduced footprint and a reduced number of external components. The MSM7704-01/7704-02/7704-03 are best suited for an analog interface to an echo canceller DSP used in digital telephone terminals, digital PABXs, and hands free terminals. FEATURES • ...
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... GSX2 5th – LPF AOUT1 + 5th – LPF AOUT2 + SG SGC GEN 8th AD BPF CONV. 8th BPF AUTO ZERO S&H DA CONV. S&H VR GEN MSM7704-01/02/03 DOUT1 DOUT2 TCONT XSYNC PLL BCLK RTIM RSYNC (ALAW) CHPS RCONT DIN1 DIN2 PDN PWD Logic 2/17 ...
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... Semiconductor PIN CONFIGURATION (TOP VIEW) RSYNC * The ALAW pin is only applied to the MSM7704-01GS-K. SGC AIN2 1 24 AOUT2 GSX2 GSX1 3 22 AOUT1 AIN1 4 21 PDN (ALAW)* CHPS BCLK 9 16 XSYNC 10 15 DIN2 DOUT2 ...
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... AG pin if needed. R2 GSX1 AIN1 – GSX2 AIN2 – + above and below the signal ground voltage (SG PP MSM7704-01/02/03 CH1 Gain Gain = R2/R1 £ 10 R1: Variable R2 > > 1/(2 ¥ 3.14 ¥ 30 ¥ R1) CH2 Gain Gain = R4/R3 £ 10 R3: Variable R4 > > 1/(2 ¥ 3.14 ¥ 30 ¥ R3) 4/17 ...
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... BCLK). The frequency should be 8 kHz 50 ppm to guarantee the AC characteristics which are mainly the frequency characteristics of the receive section. However, unless the frequency characteristics of the system used are strictly specified, this device can operate in the range of 6 kHz to 9 kHz, but the electrical characteristics specified in the data sheet are not guaranteed. MSM7704-01/02/03 5/17 ...
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... PCMIN/PCMOUT MSM7704-02 (m-law) MSD MSM7704-01/02/03 MSM7704-03 (A-law) MSD 6/17 ...
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... When PDN logic "0" level, both transmit and receive circuits are in power down state. AG Analog signal ground. DG Ground for the digital signal circuits. This ground is separate from the analog signal ground. The DG pin must be connected to the AG pin on the printed circuit board to make a common analog ground. MSM7704-01/02/03 7/17 ...
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... Control signal input of the companding law selection. Provides only for the MSM7704-01GS-K. The CODEC will operate in the m-law when this pin logic "0" level and the CODEC will operate in the A-law when this pin logic "1" level. ...
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... DIN1, DIN2 DS t DIN1, DIN2 DH R Pull-up resistor, DOUT1, DOUT2 DL C DOUT1, DOUT2 DL Transmit gain stage, Gain = 1 V off Transmit gain stage, Gain = 10 — XSYNC, RSYNC MSM7704-01/02/03 Rating Unit –0 0 –0 0 –55 to +150 °C Min. Typ. ...
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... Symbol Condition AOUT1, AOUT2 (each) with R LAO respect AOUT1, AOUT2 LAO AOUT1, AOUT2 1 OAO with respect to SG AOUT1, AOUT2 with respect V OSAO to SG MSM7704-01/02/ –30°C to +85°C) DD Min. Typ. Max. Unit — 10.0 14.0 mA — 1.0 4.0 mA — 0.01 0.05 mA 0.45 ¥ V — ...
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... – 1020 – – – – –40 1020 GT R4 – –55 *2 MSM7704-01/02/ –30°C to +85°C) DD Min. Typ. Max. Unit 20 26 — –0.15 +0.07 +0.20 Reference –0.15 –0.04 +0.20 –0.15 +0.06 +0.20 0 0.4 0.80 –0.15 –0.03 +0 ...
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... R4 2600 2800 TRANS Æ RECV 1020 RECV Æ TRANS MSM7704-01/02/ –30°C to +85°C) DD Min. Typ. Max. Unit –73.5 –69 — –71.5 dBmOp –68 — –76 –74 0.338 0.350 0.362 Vrms ...
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... PSR PSR R 50 kHz XD1 C = 100 LSTTL L t XD2 t XD3 MSM7704-01/02/ –30°C to +85°C) DD Min. Typ. Max. Unit 30 32 — — –37.5 –35 dBmO — –52 –35 dBmO — 30 — ...
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... D5 D6 Transmit Side Receive Side MSD CH2 PCM Data Transmit Side MSD CH2 PCM Data Receive Side MSM7704-01/02/ XD3 14/17 ...
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... AIN2 GSX2 BCLK XSYNC AOUT2 RSYNC PDN SGC 0.1 mF CHPS MSM7704-01/02/ 2ch Multiplex PCM (Open) Signal Output 2ch Multiplex PCM 0 V Signal Intput Bit Clock Input Sync Pulse Input Power Down Control Input 1: Operation 0: Power Down ...
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... Use a low noise (particularly, low level type of high frequency spike noise or pulse noise) power supply to avoid erroneous operation and the degradation of the characteristics of these devices. pin not lower than –0.3 V even instantaneously to avoid latch- MSM7704-01/02/03 16/17 ...
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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). MSM7704-01/02/03 (Unit : mm) Package material Epoxy resin ...
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