Description

The STV6418 is a highly integrated I2C buscontrolled 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.

The STV6418 provides fully integrated solutions for filtering and buffering both SD and HD signals.

Features

■ I2C bus control

■ Auto startup mode: low power consumption

■ Video section:

– Three CVBS inputs, two CVBS outputs

– Three Y/C inputs, three Y/C outputs

– Switchable 8 MHz, 15 MHz or 30 MHz low pass filters (LPF) on six inputs for standard definition, progressive scan and interleaved high definition, plus bypass (60 MHz) for progressive high definition

– Gain of 6 dB on all CVBS/Y and C outputs

– Integrated 150-Ω buffers

– Two RGB/one FB inputs, one high impedance RGB/FB output with 6-dB adjustable gain (from +3 dB to +9 dB)

– Two YPrPb inputs, one YPrPb/RGB HD output

– AC or DC-coupled video outputs

– Two slow blanking inputs/outputs

– Bottom clamp on all CVBS/Y and RGB inputs, average clamp on C inputs, synchronized clamp on PrPb inputs

– Bi-directional control for VCR R/C output and for TV B output

– AC-coupled inputs and AC- or DC-coupled inputs for video signal from encoder with internal clamp and bias

– Video detection block in low power auto startup mode

– Video muting on all outputs

■ Audio section:

– Three stereo inputs, two stereo outputs

– Stereo-to-mono sound capability

– Differential or single-ended audio input

– Selectable gain of 0, 6 or 9 dB on one stereo input

– Full-range volume control with soft control

– Audio muting on all outputs

Applications

■ Set-top boxes (IP, cable, satellite, terrestrial)

■ Integrated digital TV plug-in

■ Blu-ray and DVD players