2/24/2008 9T6WP
Preliminary Hardware Data Module
BCM7405
06/29/07
Hardware Signal Descriptions
Bro a d c o m Co rp o r a ti o n
Document
7405-1HDM00-R
Pin Definition Notations Page 1-97
Video Connections
Video DAC Interface – 18
1
4 - Video DAC
Interface
VDAC0_0
AO
–
3.3
–
A24
Triple Video DAC 0 output 0
1
4 - Video DAC
Interface
VDAC0_1
AO
–
3.3
–
B24
Triple Video DAC 0 output 1
1
4 - Video DAC
Interface
VDAC0_2
AO
–
3.3
–
B23
Triple Video DAC 0 output 2
1
4 - Video DAC
Interface
VDAC1_0
AO
–
3.3
–
B26
Triple Video DAC 1 output 0
1
4 - Video DAC
Interface
VDAC1_1
AO
–
3.3
–
A25
Triple Video DAC 1 output 1
1
4 - Video DAC
Interface
VDAC1_2
AO
–
3.3
–
B25
Triple Video DAC 1 output 2
1
4 - Video DAC
Interface
VDAC0_RBIA
S
AI
–
3.3
–
E23
Video DAC Triplet R Bias
1
4 - Video DAC
Interface
VDAC1_RBIA
S
AI
–
3.3
–
C25
Video DAC Triplet R Bias
1
4 - Video DAC
Interface
VDAC0_VRE
G
AI
–
3.3
–
D24
Video DAC voltage
regulator
1
4 - Video DAC
Interface
VDAC1_VRE
G
AI
–
3.3
–
D25
Video DAC voltage
regulator
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC0_AVD
D33
APWR
–
3.3
–
C26
Video DAC isolated supply
3.3V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC1_AVD
D33
APWR
–
1.2
–
D26
Video DAC isolated supply
3.3V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVDD
12
APWR
–
1.2
–
C24
Video DAC isolated supply
1.2V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVDD
25_0
APWR
–
2.5
–
D23
Video DAC isolated supply
2.5V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVDD
25_1
APWR
–
2.5
–
C23
Video DAC isolated supply
2.5V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVSS_
0
AGND
–
GND
–
E26
Video DAC isolated ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVSS_
1
AGND
–
GND
–
E24
Video DAC isolated ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
VDAC_AVSS_
2
AGND
–
GND
–
E25
Video DAC isolated ground
ITU-R-656 Interface - 9
1
3 - Digital Video
Output
VO_656_0
S/O
–
3.3
8
AN33
ITU-R-656 Video Output.
Shared with LED_LD_0 /
EXT_GFX_00
1
3 - Digital Video
Output
VO_656_1
S/O
–
3.3
8
AN34
ITU-R-656 Video Output.
Shared with LED_LD_1 /
EXT_GFX_01
Table 1-19: Pin Descriptions (Cont.)
# of
Pins
Orcad Schematic
Block
Label
I/O
Res.
Tol.
(V)
Drv.
(mA)
Loc.
Description