Power 1.5V/0.75Vs - EUROCOM X8100 Service Manual

Schematic Diagrams

Power 1.5V/0.75VS

Sheet 37 of 55
Power 1.5V/0.75VS
VTT_MEM
V TT _ ME M
M TN 7 00 2 Z H S 3
2
B - 38 Power 1.5V/0.75VS
V I N
Vout = 1.5V ( 1 + Ra / Rb )
V D D Q
P R 27 1 0 _0 6
Ra
P C 3 9 P C 43 P C 4 0
P R 2 3
* 10 0 p _ 50 V _ N P O _ 04 2 K _ 1 % _0 4 1 u _1 0 V _ 06 1 u _ 10 V _ 0 6
P R 1 8
10 _ 0 4 P C 3 3
Rb
P R 2 0
P R 2 9 *0 . 1 u_ 1 6 V _ 04
1 0_ 0 6 * 1 0K _ 1 % _ 04
Z 3 8 08
P C 35
P C 3 6 P R 1 6
*1 5 mi l _ sh o rt
1 u_ 1 0 V _ 06
*0 . 0 6 8u _ 5 0V _0 6
V S S A
P J 3
1.5A
2 1
*O P E N _ 2 m m
P C B F oo t p ri n t = J U MP -2 MM
P R 13 P C 2 6 P C 2 7
P R 1 71
2 2 _ 04 *2 0 K _ 1 %_ 0 6 *1 0 u_ 6 . 3 V _X 5 R _ 0 6 1 0 u_ 6 . 3 V _ X5 R _0 6
V D D Q
P C 4 2
S U S B G
* 10 u _ 6. 3 V _ X 5 R _ 0 6
P Q 5 2
P R 2 5 4 7K _0 4
5 V
P Q6
P R 2 4 1 00 K _ 0 4 Z 3 8 1 9 G
MT N 7 0 0 2Z H S 3
P Q 5 P J4
G
1 4, 31 , 3 4 S U S C #
MT N 7 0 02 Z H S 3 *O P E N -4 0 m i l
P R 1 4 10 0 K _ 04
5V
P R 17 0 *1 0 0 K _ 04
5
3 1 . 5 S _C P U _ P W R GD
S3 Pow er Re duc tion whi te pa per
P Q4 P C 3 2
S U S B G
34 , 3 8 S U S B
MT N 7 0 0 2Z H S 3 0 . 1 u _1 6 V _ Y 5 V _ 0 4
5 V
P R 2 6 P R 2 8 P D 3
1 . 5 M_ 0 4 1 0_ 0 6 F M 0 54 0 -N
P U 3
Z 3 8 0 1 3 7
V D D QS P G D
Z 3 8 0 2 2
T ON
Z 38 1 3
S C 4 8 6_ P I N 6
6 P R 2 2
F B
Z 3 8 0 4 8 24 Z 3 8 12
R E F B S T
Z 3 8 0 5 9 * 32 m i l _ s h ort P C 3 4
C O MP
P R 1 9 0 . 1 u _1 0 V _ X 7R _0 4
Z 3 8 14 Z 3 8 15
23
D H
Z 3 8 0 6
1 0 * 32 m i l _ s h ort
V T TS
P R 1 5
Z 3 8 0 7 Z 3 8 16
5 21
V C C A I L I M
3 K _1 % _ 06
P C 3 8 P C 41 Z 3 8 17
22
L X
1 u_ 1 0 V _ 06 19 Z 3 8 18
D L
1 00 0 p _5 0 V _ X 7R _0 4
4
V S S A
4
Z 3 8 0 9 1 4 20
5 V
V T T V D D P 1
1 5
V T T
P C 3 0
1 2
V D D P 2
1 3 1 u _ 10 V _ 0 6
V D D P 2
P C 2 8 25
P G N D 2
1 18
E N / P S V P G N D 1
1 0u _ 6 . 3V _X 5 R _ 0 6 16
P G N D 1
1 1 17
V T TE N P G N D 2
S C 4 8 6
P C 4 4
1 u _ 25 V _ X 7R _ 08
1. 5 V E N
P C 3 7
0 . 1u _ 1 6V _Y 5V _0 4
V TT E N
P R 11 0 * 0_ 0 4 G
3 5 1 . 5V _C T R L 1
P R 10 9 * 0_ 0 4
1 6 P C H _G P I O1 0
P R 11 3 * 0_ 0 4
3 5 1 . 5V _C T R L 0
P R 11 2 * 0_ 0 4
1 6 P C H _ GP I O 9
1 .5 V_CTRL1
1
1
0
0
3 . 3 V
P R 2 1
1 0 0 K _ 04
D D R 1 . 5 V _P W R G D 1 4
V I N
P C 1 1 7 P C 1 16 P C 1 15
+
4 . 7 u _2 5 V _ X5 R _0 8 4 . 7 u _2 5 V _ X 5R _ 08
*1 5 u_ 2 5 V _6 . 3 *4 . 4 _ C
P Q3 5
4 I R F 74 1 3 Z P B F
P L 4 V D D Q
2 . 5 U H _6 . 8 *7 . 3 *3 . 5
13A
1 2 1
P Q 3 3 P Q 34 P C 1 1 8 P C 1 14 P C 3 1 P C 2 9
+ +
4 P D 1 2
I R F 7 8 32 Z T R P B F *2 2 0u _ 4 V _ D 2 _ D
F M5 8 22
I R F 7 8 32 Z T R P B F
V S S A
P R 1 7 *1 5 m i l _ sh o rt
Very Close to SC486(PU7)
5 V S C 48 6 _ P I N 6
P R 3 1 P R 3 0
*3 7 . 4K _1 % _ 04 * 49 . 9 K _ 1 %_ 0 4
P R 1 7 2 P R 17 3
*1 0 K _ 04 *1 0 K _ 0 4
P Q8
G
*M TN 7 00 2 Z H S 3
P Q5 3 P Q 7
G
*M T N 7 00 2 Z H S 3 * MT N 7 0 0 2Z H S 3
V S S A
P Q5 4
G
*M T N 7 0 02 Z H S 3
V D D Q 3 4
1 . 5 V 3 , 8 , 9 , 19
3 . 3 V 2 , 3 , 1 2. . 1 4 , 1 6 , 17 , 1 9 , 22 , 2 5 , 2 8, 2 9 , 3 5, 36 , 3 8 , 39
1. 5_ CTRL0 Volt a ge
5 V 1 1 , 1 9, 25 , 3 6 , 38 , 3 9
V I N 1 1 , 22 , 3 4 . . 3 6, 3 8 . . 4 0
V TT _ ME M 8 , 9
1 1.5 V
0 1. 56 05 V
1 1. 58 05 V
0 1. 64 05 V
1.5V
P J1 0
2
1 . 5 V
* OP E N _ 6m m
P C B F o o t p r i n t = J U M P -6 MM