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E2U0043-28-82

隆 Semiconductor

MSM7716

隆 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

鈥?Single power supply

鈥?Low power consumption

Operating mode

Power down mode

鈥?Digital signal input/output interface

鈥?Sampling frequency(fs)

鈥?Transmission clock frequency

鈥?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

樓

14 min., 2048 kHz max.

when fs = 8 kHz, complies with ITU-T Recommen-

dation G. 714

鈥?Built-in PLL eliminates a master clock

鈥?Two input circuits in transmit section

鈥?Two output circuits in receive section

鈥?Transmit gain adjustable using an external resistor

鈥?Receive gain adjustable by external control 8 steps, 4 dB/step

鈥?Transmit mic-amp is eliminated by the gain setting of a maximum of 36 dB.

鈥?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.

鈥?Built-in reference voltage supply

鈥?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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