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STV6412A

Audio/video switch matrix

STMicroelectronics 

STV6412A

Audio/video switch matrix

Features

■ I²C bus control

■ Standby mode with interrupt signal output

■ Video section

– 4 CVBS inputs, 3 CVBS outputs (one with

selectable chroma trap filter)

– 3 Y/C inputs, 2 Y/C outputs

– 6 dB gain on all CVBS/Y and C outputs

) – Integrated 150 Ω buffers

t(s – 1 Y/C adder

c – 2 RGB/FB inputs, 1 tri-state RGB/FB output

u with 6 dB adjustable gain (from +3dB to

rod +9dB)

– Video muting on all outputs

P – 2 slow blanking inputs/outputs

te – Sync bottom clamp on all CVBS/Y and

le RGB inputs, average clamp on C Inputs

so – Bandwidth: 15 MHz

b – Crosstalk: 50 dB minimum

O ■ Audio Section

) - – 4 stereo inputs, 3 stereo outputs

t(s – 1 mono-sound output

c – stereo-to-mono sound capability

u – 0/6/9 dB selectable gain on one stereo

d input

ro – Full range volume control with soft control

Obsolete P – Audio muting on all outputs

LQFP64L(14 x 14 x 1.4 mm)

(Low-profile Quad Flat Package)

Order code: STV6412ADT

Description

The STV6412A is a highly integrated I²C bus-

controlled audio and video switch matrix,

optimized for use in digital set-top box

applications. It provides all the audio and video

routings required in a full two SCART set-top box

design.

September 2009

Doc ID 9754 Rev 2

1/31

www.st.com

31

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