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參數(shù)資料
| 型號(hào)： | BU8731KV |
| 廠商： | Rohm CO.,LTD. |
| 元件分類(lèi)： | Codec |
| 英文描述： | PCM codec IC for digital cellular telephones |
| 中文描述： | 編解碼器集成電路的PCM數(shù)字蜂窩電話 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 240K |
| 代理商： | BU8731KV |
610
Communication ICs
PCM codec IC for digital cellular
telephones
BU8731KV
The BU8731KV is a PCM codec IC developed for use with digital cellular telephones. It contains analog input / output
features such as a 14-bit linear precision,
μ
/ A-LAW codec, mic and speaker amplifiers, and switching transistor for the
ringer drive. This all makes the BU8731KV perfect for PDC and CDMA-type cellular telephones.
Applications
Digital cellular telephones
Features
3V single power supply (V
DD
= 2.7V to 3.3V).
2) Built-in 14-bit precision linear,
μ
/ A-LAW codec.
3) Transmission filter for the codec unit conforms to
ITU-T recommendations.
4) Built-in PLL circuit for system clock generation.
5) Clock frequency for PCM data transmission can be
set anywhere between 64kHz (128kHz when linear)
to 2048kHz.
6) Analog input / output functions:
Built-in mic amplifier.
Built-in receiver speaker amplifier (32
BTL type).
Built-in earphone speaker amplifier (32
single
type).
1)
Built-in drive amplifier for reception REXT (600
).
Built-in electronic volume control for gain adjust-
ment (for reception, transmission, and tone).
Data signal I / O circuit allows for connection to ex-
ternal devices.
For the REXT output and earphone output, soft-
mute function reduces pop noise when the power
is turned on and off.
7) DTMF signal and scale tone signal generator func-
tions are built into the tone signal generator block.
8) Internal switching transistor for ringer drive.
9) VQFP 48-pin package.
Absolute maximum ratings (Ta = 25 C)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| BU8732AKV | 制造商:LSI 制造商全稱(chēng):LSI 功能描述:PCM CODEC for Digital cellular phones |
| BU8732AKV-E2 | 制造商:ROHM Semiconductor 功能描述:CODEC TELECOM 1-CH 14BIT 3.3V 48-PIN VQFP T/R - Tape and Reel 制造商:ROHM Semiconductor 功能描述:IC CODEC PCM 48-VQFP |
| BU8733KV | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:PCM codec IC for digital cellular telephones |
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