Manual

MAX9670/MAX9671
Low-Power Audio/Video Switch with Audio
Volume Control for Dual SCART Connectors
34 ______________________________________________________________________________________
BIT
DESCRIPTION
76543210
COMMENTS
VCR_Y/CVBS_OUT VCR_R/C_OUT
0 0 0 ENC_Y/CVBS_IN ENC_R/C_IN
0 0 1 ENC_Y_IN ENC_C_IN
0 1 0 VCR_Y/CVBS_IN VCR_R/C_IN
0 1 1 TV_Y/CVBS_IN Mute
1 0 0 Not used Not used
1 0 1 Mute Mute
1 1 0 Mute Mute
Input Sources for VCR Video
111
Mute (power-on
default)
Mute (power-on
default)
0
DC restore clamp active at input
(power-on default)
ENC_R/C_IN Clamp/Bias
1 Chrominance bias applied at input
0
High-impedance bias off
(power-on default)
ENC R/C, G, and B inputs high-impedance
bias (in HD application)
1
Biases the R/C, G, and B inputs to high
impedance (overwrites the ENC_R/C_IN
clamp and bias bit)
0
DC restore clamp active at input
(power-on default)
VCR_R/C_IN Clamp/Bias
1 Chrominance bias applied at input
Table 16. Register 08H: ENC and VCR Video Input/Output Control