描述 Description

The STV6414A is a highly integrated I2C bus controlled audio and video switch matrix, optimized for use in digital set-top box applications. It provides the audio and video routings required in a two SCART set-top box design.

In an LQFP64 (10 × 10 × 1.4 mm) package, the STV6414A is compatible with the STV6413.

特性 Features

■ I2C bus control

■ Standby mode with interrupt signal output

■ Video section

– 3 CVBS inputs, 2 CVBS outputs

– 3 Y/C inputs, 2 Y/C outputs

– Switchable LPFs (low pass filters) on 6 inputs

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

– Integrated 150 Ω buffers

– 2 RGB/FB inputs, 1 tri-state RGB/FB output with 6 dB adjustable gain (from +3 dB to +9 dB)

– Video muting on all outputs

– 2 slow blanking inputs/outputs

– Sync bottom clamp on all CVBS/Y and RGB inputs, average clamp on C inputs

– SVHS switch on C VCR output

– Bandwidth: 15 MHz

– Crosstalk: 50 dB minimum

■ Audio section

– 3 stereo inputs, 3 stereo outputs

– Stereo-to-mono sound capability

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

– Full range volume control with soft control

– Audio muting on all outputs