Key Parts Pin Assignments - Dell E190Sf Service Manual

8.

Key Parts Pin Assignments

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