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參數資料
| 型號： | W6612 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | Dual PCM Codec(雙通道PCM編解碼器) |
| 中文描述： | A/MU-LAW, PCM CODEC, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數： | 2/21頁 |
| 文件大小： | 161K |
| 代理商： | W6612 |
W6612
- 2 -
1. GENERAL DESCRIPTION
The Winbond dual PCM Codec is a 2 channel chip incorporating two
Σ
PCM codec filter complying
with the 64K bps A/Mu law specified in CCITT G.711 standard. In addition, this chip also meets the
PCM conformance specification of the CCITT G.714 recommendation.
This chip is operated at 5 volts typically. It consists of some dual OP amplifiers integrated with a
Σ
PCM codec-filter to allow for easy control of the input/output analog interface. And the device also
includes dual serial data port(SDP) to access the digital A/D and D/A data.
2. FEATURES
Single 5.0 Volt Power Supply
Master Clock Rate: 2.048 MHz, or 1.536 MHz
Power Comsumption of 19 mA
for 5 Volt; Power Down of 0.2 mA for 5 Volt
Dual Linear 14 Bits
Σ
PCM Codec-Filter for A/D and D/A Converters
Full-duplex 2 Channel Speech Codec
Complete A/Mu-law Companding or 14 Bit Linear Output
Meet PCM Conformance Spec. of CCITT G.712/G.714
3 Types transfer rate: long frame, short frame and GCI(general circuit interface)
Serial PCM Transfer Data Rate from 128 to 4096 Kbps for long frame and short frame
Serial PCM Transfer Data Rate from 512 to 4096 Kbps for GCI frame Interface
Separate Power Down Mode
Dual Analog Input OP. Amplifier with External Gain Adjust
Dual Analog Ouput
Single-End Power Driver with 2K
Load
Differential Power Driver with 300
Load and External Gain Adjust
2.7 Volt Regulator for Digital Circuit
Packaged in 44-pin PQFP
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