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MSM7508B

OKI
Part Number MSM7508B
Manufacturer OKI
Description (MSM7509B) Single Rail CODEC
Published Aug 19, 2005
Detailed Description E2U0013-28-81 ¡ Semiconductor MSM7508B/7509B ¡ Semiconductor Single Rail CODEC This version: Aug. 1998 MSM7508B/7509B ...
Datasheet PDF File MSM7508B PDF File

MSM7508B
MSM7508B

Overview
E2U0013-28-81 ¡ Semiconductor MSM7508B/7509B ¡ Semiconductor Single Rail CODEC This version: Aug.
1998 MSM7508B/7509B Previous version: Nov.
1996 GENERAL DESCRIPTION The MSM7508B and MSM7509B are single-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz.
These devices contain filters for A/D and D/A conversion.
Designed especially for a single-power supply and low-power applications, these devices are optimized for telephone terminals in ISDN and digital wireless systems.
The MSM7508B/MSM7509B are the transmission-clocks extended versions of the MSM7508/ MSM7509.
It is recommended to use the MSM7508/MSM7509 for the transmission clocks of 64, 128, 256kHz.
FEATURES • Single power supply: +5 V ± 5% • Low power consumption Operating mode: 17.
5 mW Typ.
37 mW Max.
Power down mode: 1.
5 mW Typ.
3 mW Max.
• ITU-T Companding law MSM7508B: m-law MSM7509B: A-law • Built-in PLL eliminates a master clock • Transmission clock: 64/128/256/512/1024/2048 kHz 96/192/384/768/1536/1544/200 kHz • Adjustable transmit gain • Built-in reference voltage supply • Package options: 16-pin plastic DIP (DIP16-P-300-2.
54-W1) (Product name : MSM7508BRS) (Product name : MSM7509BRS) 24-pin plastic SOP (SOP24-P-430-1.
27-K) (Product name : MSM7508BGS-K) (Product name : MSM7509BGS-K) 28-pin plastic QFJ (PLCC) (QFJ28-P-S450-1.
27) (Product name : MSM7508BJS) (Product name : MSM7509BJS) Note: The product names are indicated in PIN CONFIGURATION.
1/17 ¡ Semiconductor MSM7508B/7509B BLOCK DIAGRAM AIN+ AIN– GSX SGC SG + – RC Active BPF (8th) AD Conv.
Auto Zero Transmit Controller PCMOUT XSYNC BCLOCK Signal Ground Voltage Ref.
LPF (5th) TPLL RPLL DA Conv.
PWD Logic Receive Controller RSYNC PCMIN PDN VDD AG DG AOUT + – PWD 2/17 ¡ Semiconductor MSM7508B/7509B PIN CONFIGURATION (TOP VIEW) SGC 1 SG 2 AOUT 3 VDD 4 DG 5 PDN 6 RSYNC 7 PCMIN 8 16 AIN+ 15 AIN– 14 GSX 13 NC 12 AG 11 BCLOCK 10 XSYNC 9 PCMOUT SGC 1 NC 2 SG 3 NC 4 AOUT 5 VDD 6 DG 7 NC 8 NC 9 24 AIN+ 23 AIN–...


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