Instruction Manual

MAX4399
Audio/Video Switch for Three SCART
Connectors
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Table 14. 09h: VCR Video Output Control
BIT
DESCRIPTION
76543210
COMMENTS
—————— 00
Low (<2V) internal source (power-on
default)
—————— 01
Medium (4.5V to 7V). External SCART
source with 16:9 aspect ratio.
—————— 1 0 High impedance
Set VCR Slow Switching
—————— 11
High (>9.5V). External SCART source with
4:3 aspect ratio.
————— 0 ——
Normal operation. Pulldown on
TV_R/C_OUT is off (power-on default)
VCR_R/C_OUT Ground
————— 1 ——
Ground. Pulldown on TV_R/C_OUT is on.
The output amplifier driving
VCR_R/C_OUT turns off.
Table 15. Register 0Ah: AUX Video Input Control
BIT
DESCRIPTION
76543210
COMMENTS
————————AUX_Y/CVBS_OUT AUX_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 AUX_Y/CVBS_IN AUX_R/C_IN
————— 1 0 0 TV_Y/CVBS_IN TV_R/C_IN
————— 1 0 1 Mute Mute
————— 1 1 0 Mute Mute
Input Sources for AUX Video
————— 111
Mute (power-on
default)
Mute (power-on
default)
0 ———————
DC restore clamp active at input (power-
on default)
AUX_R/C_IN Clamp/Bias
1 ———————Chroma bias applied at input
Table 16. Register 0Bh: AUX Video Output Control
BIT
DESCRIPTION
76543210
COMMENTS
—————— 00
Low (<2V). Internal source (power-on
default).
—————— 01
Medium (4.5V to 7V). External SCART
source with 16:9 aspect ratio.
—————— 1 0 High impedance
Set AUX Slow Switching
—————— 11
High (>9.5V). External SCART source
with 4:3 aspect ratio.
————— 0 ——
Normal operation. Pulldown on
TV_R/C_OUT is off (power-on default).
AUX_R/C_OUT Ground
————— 1 ——
Ground. Pulldown on TV_R/C_OUT is
on. The output amplifier driving
AUX_R/C_OUT turns off.