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 1-99
1 7 - Digital Video HDMI_CEC_T
ERM
AIO – 5 – E18 Consumer electronic
control
1 7 - Digital Video HDMI_CEC AIO – 5 – D20 Consumer electronic
control
1 7 - Digital Video HDMI_HTPLG I – 5 – E20 Hotplug connection
RF Modulator - 12
1 13 - Analog I/O RFMOUT_N AO – 2.5 – A27 RF modulator analog output
1 13 - Analog I/O RFMOUT_P AO – 2.5 – B27 RF modulator analog output
1 13 - Analog I/O RFM_EXT_R_
POS
AI – 2.5 – B28 RF modulator DAC bias
1 13 - Analog I/O RFM_PLL_TE
ST
AO – 2.5 – G25 RFM PLL test
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVDD2
P5_0
APWR – 2.5 – C27 RF modulator analog 2.5
volt power supply
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVDD2
P5_1
APWR – 2.5 – C28 RF modulator analog 2.5
volt power supply
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVDD1
P2
APWR – 1.2 – D27 RF modulator digital 1.2 volt
power supply
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVSS_0 AGND – GND – E28 RF modulator analog
ground
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVSS_1 AGND – GND – D28 RF modulator analog
ground
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_AVSS_2 AGND – GND – E27 RF modulator analog
ground
1 13 - Analog I/O RFM_EXT_R_
NEG
AI – GND – A28 RF Modulator DAC Bias
reference. (Do not connect
to ground)
Note: Connect to
RFM_EXT_R_POS though
6K ohm resistor.
1 11 - UHF/Video/HDMI/
RFM/AUDIO/...
RFM_PLLCAP AO – 1.2 – B29 RF Modulator Internal
Voltage Regulator Output
for RFM PLL (no connection
- for probing only)
Audio Connections
Audio Output Interface – 10
1 9 - Analog Audio/
Digital Audio
AUD0_SPDIF S/O – 3.3 – C21 Digital Audio SPDIF output
0
1 9 - Analog Audio/
Digital Audio
AUD0_LEFT_
p
AO – 2.5 – A22 Left audio differential output
(6mA 2.5V, 13.5 MHz)
1 9 - Analog Audio/
Digital Audio
AUD0_LEFT_
n
AO – 2.5 – B22 Left audio differential output
(6mA 2.5V, 13.5 MHz)
Table 1-19: Pin Descriptions (Cont.)
# of
Pins
Orcad Schematic
Block
Label I/O Res.
Tol.
(V)
Drv.
(mA)
Loc. Description
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