PRO-950HD
12
1
2
4
1
2
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4
C
D
F
A
B
E
2.3 HNM BLOCK DIAGRAM
AWV2497- (HNM Ass'y) Block Diagram
Classification of each component
IC, memory, regulator and so on
Differential signal
Bus signal
Connector to outside of the ass'y
Host controll signal
Other digital signal
X'tal or oscillator
Power supply
Ethernet block
DDR block
USB block
8620 block
PCI clock
block
IC xxxx
IC7701
HY5DU561622ETPJ
[DDR-SDRAM (256Mbit)]
IC7703
AGC1063-A-PI
(S29GL128N90TFIR2)
[Flash Memory (128Mbit)]
IC7702
HY5DU561622ETPJ
[DDR-SDRAM (256Mbit)]
Connector to Main Ass'y
Memory bus
Peripheral bus
PCI bus
PCI clock
X7851
ASS1216-
[33MHz OSC]
IC7855
TC74LCX04
[Inverter
(as Buffer)]
L7801
ATH1160-
[C. mode filter]
IC7803
R5523N001B
[USB High-side
Switch]
to USB Receptacle Connector
USB Differencial
signal
+5V
IC7753
BR93L46RFJ-W
[EEPROM (1kbit)]
IC7751
TC74LCX125
[3-state Buffer]
Tx
Rx
Tx / Rx
IC7857
TC74LCX125
[3-state Buffer]
Reset
Reset
Reset
Reset
IC7852
TC74LCX04
[Inverter
(as Buffer)]
Reset
+3.3V
+2.5V
+1.2V
IC7902
NJM2846DL3-25
[Regulator IC]
IC7903
LTC3412EFE
[SW Reg. IC]
IC7904
LTC3412EFE
[SW Reg. IC]
RJ-45 Ethernet Connector
IC7801
VT6212L-G
[USB Controller]
IC7754
RTL8100CL-LF
[Ethernet Controller]
IC7601
EM8620L-LFC
[Digital Media Processor]
27MHz
X'tal
24MHz
X'tal
25MHz
X'tal
CN7851
CN7801
JA7752
AKP1307-
CN (JA) xxxx
xx MHz
X'tal
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