Broadcom BCM7405 - Page 111

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07 Hardware Signal Descriptions
Broadcom Corporation
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