2/24/2008 9T6WP
BCM7405
Preliminary Hardware Data Module
Hardware Signal Descriptions
06/29/07
Bro a d c o m C o rp o r a ti o n
Page 1-100
Pin Definition Notations
Document
7405-1HDM00-R
1
9 - Analog Audio/
Digital Audio
AUD0_RIGHT
_p
AO
–
2.5
–
B21
Right audio differential
output (6mA 2.5V, 13.5
MHz)
1
9 - Analog Audio/
Digital Audio
AUD0_RIGHT
_n
AO
–
2.5
–
A21
Right audio differential
output (6mA 2.5V, 13.5
MHz)
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
AUD0_VDDO
25_0
APWR
–
2.5
–
D21
SDC isolated supply 2.5V
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
AUD0_VSSO_
0
AGND
–
GND
–
E22
SDC isolated ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
AUD0_VSSO_
1
AGND
–
GND
–
C22
SDC isolated ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
AUD0_VSSO_
2
AGND
–
GND
–
E21
SDC isolated ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
AUD0_VDDO
25_1
APWR
–
2.5
–
D22
SDC isolated supply 2.5V
Bus Connections
System DDR-DRAM Interface – 157
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
DDR_BVDD0
I/O
Ext PU
SSTL
_18
–
AL6
DDR 1.2 V analog voltage
1
11 - UHF/Video/HDMI/
RFM/AUDIO/ …
DDR_BVDD1
I/O
Ext PU
SSTL
_18
–
C6
DDR 1.2 V analog voltage
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
DDR_BVSS0
I/O
Ext PU
SSTL
_18
–
AK6
DDR analog ground
1
11 - UHF/Video/HDMI/
RFM/AUDIO/...
DDR_BVSS1
I/O
Ext PU
SSTL
_18
–
D7
DDR analog ground
1
12 - Clocks
DDR_PLL_TE
ST
I/O
Ext PU
SSTL
_18
–
E7
DDR PLL test port
1
14 - 64 Bit DDR2
SDRAM
DDR01_CKE
I/O
Ext PU
SSTL
_18
–
AC5
DDR DRAM clock enable
for 16-bit lane 0 and 1
1
14 - 64 Bit DDR2
SDRAM
DDR23_CKE
I/O
Ext PU
SSTL
_18
–
G5
DDR DRAM clock enable
for 16-bit lane 2 and 3
1
14 - 64 Bit DDR2
SDRAM
DDR_NCOMP
I/O
Ext PU
SSTL
_18
–
AM6
DDR DRAM PVT N COMP
1
14 - 64 Bit DDR2
SDRAM
DDR_PCOMP
I/O
Ext PU
SSTL
_18
–
AN5
DDR DRAM PVT P COMP
1
14 - 64 Bit DDR2
SDRAM
DDR_RCOMP
I/O
Ext PU
SSTL
_18
–
AN6
DDR DRAM PVT R COMP
0
DDR_SCOMP
I/O
Ext PU
SSTL
_18
–
N/A
DDR DRAM PVT S COMP
(Not bond out)
1
14 - 64 Bit DDR2
SDRAM
DDR01_ODT
I/O
Ext PU
SSTL
_18
–
AC3
DDR DRAM On Chip
Termination for 16-bit lane 0
and 1
1
14 - 64 Bit DDR2
SDRAM
DDR23_ODT
I/O
Ext PU
SSTL
_18
–
F3
DDR DRAM On Chip
Termination for 16-bit lane 2
and 3
Table 1-19: Pin Descriptions (Cont.)
# of
Pins
Orcad Schematic
Block
Label
I/O
Res.
Tol.
(V)
Drv.
(mA)
Loc.
Description