GENERAL DESCRIPTION

The AK4707 offers the ideal features for digital set-top-box systems. The AK4707 includes the audio switches, video switches, etc. designed primarily for digital set-top-box systems. The AK4707 is offered in a space saving 48-pin LQFP package.

FEATURES

†Analog switches for SCART
Audio section
THD+N: −86dB (@2Vrms)
Dynamic Range: 96dB (@2Vrms)
Analog Inputs
Two Full Differential Stereo Input or Single-ended input for Decoder DAC
Two Stereo Input (TV & VCR SCART)
Analog Outputs
Two Stereo Outputs (TV & VCR SCART)
Pop Noise Free Circuit for Power on/off
Video section
75ohm driver
6dB Gain for Outputs
Four CVBS/Y inputs (ENCx2, TV, VCR), Two CVBS/Y outputs (TV, VCR)
Three R/C inputs (ENCx2, VCR), One R/C output (TV)
Two G and B inputs (ENC, VCR), One G and B outputs (TV)
TV/VCR input monitor
Loop-through Mode for standby
Auto-Startup Mode for power saving
SCART pin#16 (Fast Blanking), pin#8 (Slow Blanking) Control
†Power supply
5V+/−5% and 12V+/−5%
Low Power Dissipation / Low Power Standby Mode
†Package
Small 48pin LQFP
†AK4702 Pin Compatible