參數(shù)資料
型號(hào)： MSM7728
廠商： OKI SEMICONDUCTOR CO., LTD.
元件分類(lèi)： Codec
英文描述： Single Rail Linear CODEC
中文描述： 單軌線(xiàn)性編解碼器
文件頁(yè)數(shù)： 1/23頁(yè)
文件大?。?/td> 150K
代理商： MSM7728
Semiconductor
MSM7728
1/23
Single Rail Linear CODEC
GENERAL DESCRIPTION
The MSM7728 is a single-channel linear CODEC CMOS IC for voice signals that contains filters
for A/D and D/A conversions.
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 outputs include the speaker drive output, earphone drive output and ringer output.
Therefore, the sound interface can be configured with a few external circuits.
FEATURES
Single power supply
Low power consumption
Operating mode
Power down mode
Digital signal input/output interface
Transmission clock frequency
Filter characteristics
Built-in PLL eliminates a master clock
Built-in PB tone signal generator
Built-in service tone generator
Built-in ringer tone generator
General latch output: 1 bit
Both transmit and receive gain adjustable by external control
Receive interface: Speaker direct drive output
Earphone interface output
Ringer output
Transmit gain adjustable using an external resistor
Transmit microphone amplifier is eliminated by the gain setting of a maximum of 36 dB.
Built-in reference voltage supply
Serial 8-bit processor interface
Package:
30-pin plastic SSOP (SSOP30-P-56-0.65-K) (Product name: MSM7728GS-K)
: 2.5 V to 3.6 V
: 36 mW Typ.
: 0.003 mW Typ.
: 14-bit serial code in 2's complement format
: 112 kHz min., 2048 kHz max.
: Complies with ITU-T Recommendation G.714
: 600
W
, 1 mW max.
: 70 nF, 4 V
PP
E2U0053-28-81
This version: Aug. 1998
Previous version: Apr. 1997
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