Manual

MAX9670/MAX9671
Low-Power Audio/Video Switch with Audio
Volume Control for Dual SCART Connectors
______________________________________________________________________________________ 31
PIN (MAX9670) NAME TYPE SIGNAL LOAD
31 ENC_C_IN Input None N/A
32 ENC_R/C_IN Input 50% flat field N/A
33 TV_R/C_OUT Output 50% flat field 150Ω to ground
34 VCR_R/C_OUT Output 50% flat field 150Ω to ground
35 VCR_Y/CVBS_OUT Output 50% flat field 150Ω to ground
36 TV_Y/CVBS_OUT Output 50% flat field 150Ω to ground
37 VCR_Y/CVBS_IN Input None N/A
38 TV_Y/CVBS_IN Input None N/A
39 ENC_Y_IN Input None N/A
40 ENC_Y/CVBS_IN Input 50% flat field N/A
Table 9. Conditions for Average Power Consumption Measurement (continued)
REGISTER
ADDRESS (hex)
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
00h Not used TV ZCD TV volume control
TV audio
output mute
01h Not used
Interrupt
enable
VCR audio selection TV audio selection
02h Not used
03h Not used
04h Not used
05h Not used
06h Not used TV G and B video switch TV video switch
07h Not used Set TV fast switching Not used Set TV slow switching
08h
VCR_R/C_IN
clamp
Not used
ENC R/G/B
high-
impedance
bias
ENC_R/C_IN
clamp
VCR video switch
09h Not used
VCR_R/C_OUT
ground
Set VCR slow
switching
0Ah Not used
0Bh Not used
0Ch Not used
0Dh
VCR_Y/
CVBS_OUT
enable
VCR_R/
C_OUT
enable
TV_R/
C_OUT
enable
TV_G_OUT
enable
TV_B_OUT
enable
TV_Y/
CVBS_OUT
enable
TVOUT_FS
enable
Not used
10h Operating mode Not used
Table 10. Data Format for Write Mode