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 1-113
1
15 - Ethernet/USB/
SATA
USB_MONCD
R
AO
–
3.3
–
F12
CDR monitor
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVDD33
_0
APWR
–
3.3
–
D13
Transmitter Analog Power
(3.3V +5% / -5%)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVDD33
_1
APWR
–
3.3
–
C13
Transmitter Analog Power
(3.3V +5% / -5%)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVDD25
_0
APWR
–
2.5
–
C11
Transmitter Analog Power
(2.5V +5% / -5%)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVDD12
_0
APWR
–
1.2
–
D10
Transmitter Analog Power
(1.2V +5% / -5%)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVDD12
_1
APWR
–
1.2
–
D11
Transmitter Analog Power
(1.2V +5% / -5%)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVSS_0
AGND
–
GND
–
E12
Receiver Analog Ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVSS_1
AGND
–
GND
–
E11
Receiver Analog Ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
USB_AVSS_2
AGND
–
GND
–
E10
Receiver Analog Ground
Ethernet – 12
1
15 - Ethernet/USB/
SATA
EPHY_VREF
AI
–
2.5
–
E13
Ethernet internal voltage
reference
1
15 - Ethernet/USB/
SATA
EPHY_RDAC
AI
–
2.5
–
E14
Ethernet DAC Bias Resistor
1
15 - Ethernet/USB/
SATA
EPHY_RDN
AI
–
2.5
–
B14
Ethernet receiver –
differential low
1
15 - Ethernet/USB/
SATA
EPHY_RDP
AI
–
2.5
–
C14
Ethernet receiver –
differential high
1
15 - Ethernet/USB/
SATA
EPHY_TDN
AO
–
2.5
–
A15
Ethernet transmitter –
differential low
1
15 - Ethernet/USB/
SATA
EPHY_TDP
AO
–
2.5
–
B15
Ethernet transmitter –
differential high
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_AVDD1
2_0
APWR
–
1.2
–
C15
Ethernet analog 1.2 Volt
power
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_PLLVD
D12
APWR
–
1.2
–
D14
Ethernet analog 1.2 Volt
power
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_AVSS_
0
AGND
–
GND
–
E15
Ethernet analog ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_PLLVS
S
AGND
–
GND
–
E16
Ethernet PLL ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_AVDD1
2_1
APWR
–
2.5
–
D15
Ethernet analog 1.2 Volt
power
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
EPHY_BIAS_
VDD25
APWR
–
2.5
–
D16
Ethernet analog 2.5 Volt
power
Table 1-19: Pin Descriptions (Cont.)
# of
Pins
Orcad Schematic
Block
Label
I/O
Res.
Tol.
(V)
Drv.
(mA)
Loc.
Description