Service Manual
12. Key Parts Pin Assignments
12.1 U401 (gm5621-LF) I/O Legend: P=Power, G=Ground, O=Output, I=Input, A=Analog
Pin
Symbol I/O
Description
1 AVSS_BIAS G
Analog ground for LVDS PLL and Bandgap
2 VDD_OUT_33 P Digital 3.3V supply for LVDS output
3 RESERVED O Reserved; Do not connect
4 RESERVED O Reserved; Do not connect
5 RESERVED O Reserved; Do not connect
6 RESERVED O Reserved; Do not connect
7 E_CH3P_LV O LVDS signal of even channel 3(+)
8 E_CH3N_LV O LVDS signal of even channel 3(-)
9 E_CLKP_LV O LVDS signal of even channel clock (+)
10
E_CLKN_LV O LVDS signal of even channel clock (-)
11
E_CH2P_LV O LVDS signal of even channel 2(+)
12
E_CH2N_LV O LVDS signal of even channel 2(-)
13
E_CH1P_LV O LVDS signal of even channel 1(+)
14
E_CH1N_LV O LVDS signal of even channel 1(-)
15
E_CH0P_LV O LVDS signal of even channel 0(-)
16
E_CH0N_LV O LVDS signal of even channel 0(-)
17
CVDD_18 P Core VDD connect to digital 1.8V
18
CRVSS O Chip digital ground
19
RESERVED O Reserved; Do not connect
20
RESERVED O Reserved; Do not connect
21
RESERVED O Reserved; Do not connect
22
RESERVED O Reserved; Do not connect
23
RESERVED O Reserved; Do not connect
24
RESERVED O Reserved; Do not connect
25
Vdd_out_33 P Digital 3.3V supply for LVDS output
26
VSS_OUT G
Digital ground for LVDS output
27
RESERVED O Reserved; Do not connect
28
RESERVED O Reserved; Do not connect
29
RESERVED O Reserved; Do not connect
30
RESERVED O Reserved; Do not connect
31
O_CH3P_LV O LVDS odd channel 3 positive. Reserved for gm5611 and gm2621
32
O_CH3N_LV O LVDS odd channel 3 negative. Reserved for gm5611 and
gm2621
33
O_CLKP_LV O LVDS odd channel clock positive. Reserved for gm5611 and
gm2621
34
O_CLKN_LV O LVDS odd channel clock negative. Reserved for gm5611 and
gm2621
35
O_CH2P_LV O LVDS odd channel 2 positive. Reserved for gm5611 and gm2621
36
O_CH2N_LV O LVDS odd channel 2 negative. Reserved for gm5611 and
gm2621
37
O_CH1P_LV O LVDS odd channel 1 positive. Reserved for gm5611 and gm2621
38
O_CH1N_LV O LVDS odd channel 1 negative. Reserved for gm5611 and
gm2621
39
O_CH0P_LV O LVDS odd channel 0 positive. Reserved for gm5611 and gm2621
40
O_CH0N_LV O LVDS odd channel 0 negative. Reserved for gm5611 and
gm2621
41
RESERVED O Reserved; Do not connect
42
RESERVED O Reserved; Do not connect
43
RESERVED O Reserved; Do not connect
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