BW0406XB Datasheet

IC型號(hào)：
BW0406XB
PDF描述：
BW0406XB Sigma-Delta Voice CODEC|Data Sheet
文件大小：
212.73KB
PDF頁數(shù)：
10頁
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ETC

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REV 0.1 2002/04/23

Sigma-Delta Voice ADC

GENERAL DESCRIPTION

The BW0406XB is Sigma-Delta ADC for speech and

telephony applications. The product contains both

digital IIR and FIR filter. The normal output channels

have with 70dB signal to distortion ratio. The output

of this device is 14bit linear. An on-chip voltage

reference circuit is included to allow the single supply

operation

BW0406XB

FEATURES

- Single chip voice line ADC

- Oversampled Sigma Delta modulator

- Output format : linear 14bit

* When serial interface mode, the 14bit

linear data has 16bit format with two don't

care bits from LSB

* 2's complement format

-256X Oversampling

- On chip Decimation Filter

- Single ended Input

- Sampling Rate of 8

鈭?/div>

11KHz

- On chip voltage reference circuitry

- Single +3.3V Power Supply

- 2Vpp Input signal swing

- Power Consumption

* Operating Mode : 6mW Typ(3.3V)

* Powerdown Mode : 33

碌

W Typ(3.3V)

TYPICAL APPLICATIONS

- Speech Processing

(Recognition, Synthesis, Compression etc.)

- Telephony

- Modem

FUNCTIONAL BLOCK DIAGRAM WITH INPUT/OUPUT APPLICATION

REFH

AINFB

REFL

SDOUT

ADC Serial

Output

Analog Input

AMODIN

鈭單?/div>

Modulator

Decimation

filter

Serial Interface

14bit Linear PCM in

16bit format

PDOUT[13:0]

ADC Parallel

Output

Voltage Reference

Output

VREFOUT

Voltage Reference

X256FS

BCK

SYNC

RST

PWD

VDDA

VSSA

VDDD VSSD

SAMSUNG ELECTRONICS Co. LTD

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