E2U0043-28-82
¡ Semiconductor
MSM7716
¡ Semiconductor
Single Rail Linear CODEC
This version: Aug. 1998
MSM7716
Previous version: Nov. 1996
GENERAL DESCRIPTION
The MSM7716 is a single-channel CODEC CMOS IC for voice signals that contains filters for
linear A/D and D/A conversion.
Designed especially for a single-power supply and low-power applications, the device is
optimized for applications for the analog interfaces of audio signal processing DSPs and digital
wireless systems.
The analog output signal can directly drive a ceramic type handset receiver. In addition, levels
for analog outputs can be set by external control.
FEATURES
• Single power supply
• Low power consumption
Operating mode
Power down mode
• Digital signal input/output interface
• Sampling frequency(fs)
• Transmission clock frequency
• Filter characteristics
: +2.7 V to +3.6 V
:
:
:
:
:
:
24 mW Typ.
0.05 mW Typ.
14-bit serial code in 2's complement format
4 to 16 kHz
fs
¥
14 min., 2048 kHz max.
when fs = 8 kHz, complies with ITU-T Recommen-
dation G. 714
• Built-in PLL eliminates a master clock
• Two input circuits in transmit section
• Two output circuits in receive section
• Transmit gain adjustable using an external resistor
• Receive gain adjustable by external control 8 steps, 4 dB/step
• Transmit mic-amp is eliminated by the gain setting of a maximum of 36 dB.
• Analog outputs can drive a load of a minimum of 1 kW ; an amplitude of a maximum of 4.0 V
PP
with push-pull driving.
• Built-in reference voltage supply
• Package options:
32-pin plastic TSOP (TSOPI32-P-814-0.50-1K) (Product name : MSM7716TS-K)
30-pin plastic SSOP (SSOP30-P-56-0.65-K)
(Product name : MSM7716GS-K)
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