5002B 데이터 시트보기 (PDF) - TDK Corporation

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5002B

Dual SCART A/V Switch

TDK Corporation 

DESCRIPTION

The AVPro® 5002B device is an audio/video

switching IC that supports an input/output port, an

input only port, and an output only port. The device

includes multiplexers that allow the inputs to be

routed to the outputs in various configurations.

Additional outputs are provided to drive an external

RF modulator. The video outputs of the multiplexers

are buffered to drive 137ohm loads. The audio

outputs are buffered to provide 2 Vrms output into

600 ohms. The 5002B has features optimized for

BSkyB satellite receiver applications, but it can also

be used in other applications that require control of

multiple audio and video sources.

BLOCK DIAGRAM

AVPro® 5002B

Dual SCART A/V Switch

FEATURES

August 2000

• Two SCART connections (Auxiliary, TV)

• Video section

- Integrated output drivers

- RGB, SVHS, composite outputs

- Programmable RGB gain

• Audio section

- 5-bit audio attenuation, 0 to -31 dB

- Auxiliary tone inputs to support BSkyB

- Ground based outputs (no AC coupling caps)

• Serial port control of switching I2C bus

• 64-lead LQFP package

ABLANK

EBLANK

Aux_R

Enc_R

Enc_C

Aux_G

Enc_G

Aux_B

Enc_B

Enc_Y

Enc_YC

Aux_YC

SCLK

SDATA

Audio1

Audio2

Aux_Lin

Aux_Rin

Lin

Rin

Serial

Port

Rbias

Vref

Tgen

Support

Circuits

Mux

Other I/O

Mux

Volume

Control

BLANK

TV_R

TV_G

TV_B

TV_YCout

Mod_YC

Aux_Cout

Aux_YCout

Aux_Fnc

TV_Fnc

DO_0

DO_1

Rout

Lout

TV_Rout

TV_Lout

Aux_Lout

Aux_Rout

Mod_mono

1

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