(MSM699x) Single Chip CODEC - OKI Semiconductor
Description
E2U0010-28-81 This version: Aug.
1998 MSM6996H/6996V/6997H/6997V/6998/6999 m Previous version: Nov.
1996 ¡ Semiconductor o c .
MSM6996H/6996V/6997H/6997V/6998/6999 U 4 t Single Chip CODEC e e h S GENERAL DESCRIPTION a t a The MSM6996H/MSM6996V/MSM6997H/MSM6997V/MSM6998/MSM6999 are a single-channel D CODEC CMOS ICs containing filters for A/D and D/A converting of the voice signal ranging from .
300 Hz to 3400 Hz.
w w wFEATURES ¡ Semiconductor • Compliance with ITU-T companding Law MSM6996H/MSM6996V/MSM6998 : A-law MSM6997H/MSM6997V/MSM6999 : m-law • Capable of independent operation of transmission and reception • Transmission clock in the range of 64 kHz to 2048 kHz • Adjustable transmit gain • 600 W drive for analog output MSM6996H/MSM6996V/MSM6997H/MSM6997V single end drive MSM6998/MSM6999 Push-pull drive • Built-in analog loop back fanction MSM6996V/MSM6997V • Built-in reference voltage source • Low Power Dissipation (60 mW to 70 mW Typ.
) • Package options : 16-pin plastic DIP (DIP16-P-300-2.
54) (Product name : MSM6996HRS/MSM6997HRS) (Product name : MSM6996VRS/MSM6997VRS) (Product name : MSM6998RS/MSM6999RS) 16-pin cer DIP (DIP16-G-300-2.
54-1) (Product name : MSM6996HAS/MSM6997HAS) (Product name : MSM6996VAS/MSM6997VAS) (Product name : MSM6998AS/MSM6999AS) 24-pin plastic SOP (SOP24-P-430-1.
27-K) (Product name : MSM6996HGS-K/MSM6997HGS-K) (Product name : MSM6996VGS-K/MSM6997VGS-K) (Product name : MSM6998GS-K/MSM6999GS-K)
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¡ Semiconductor
MSM6996H/6996V/6997H/6997V/6998/6999
BLOCK DIAGRAM
MSM6996H/V MSM6997H/V
AIN+ AIN– GSX VDD VSS AG DG *2 TMC
+ –
SAMPLE
Pre Filter 5th LPF 3rd HPF Auto Zero Voltage REF.
COMP
Transmit PLL
XSYNC
C Ladder
SAR
Transmit Controller
XCLOCK PCMOUT *1 PDN/BS PCMIN RCLOCK RSYNC
T.
PWD R.
PWD C Ladder
– +
Receive Controller Receive PLL
AOUT
5th LPF
* 1 BS : Only MSM6997H/V * 2 Only MSM6996V, MSM6997V
MSM6998, MSM6999
AIN+ AIN– GSX V...
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