Ssb: Sdram (B10) - Philips LC4.9U AA Service Manual

Circuit Diagrams and PWB Layouts
SSB: SDRAM
1 2
SDRAM
B10
+2V5_DDR
2B01 2B02 2B03 2B04 2B05
47u 47u 100n 100n 100n
16V
A 6.3V
TO/FROM SCALER
B
FSRAS
FSCAS
FSWE
FSCLK+
FSCLK-
FSCKE
FSDQM(0)
C
FSDQM(1)
FSDQM(2)
FSDQM(3)
FSBKSEL(0)
FSBKSEL(1)
FSADDR(0)
FSADDR(1)
FSADDR(2)
FSADDR(3)
FSADDR(4)
FSADDR(5)
FSADDR(6)
D
FSADDR(7)
FSADDR(8)
FSADDR(9)
FSADDR(10)
FSADDR(11)
E
F
3139 123 6145.1
1 2
LC4.9U AA
3 4
2B06 2B07 2B08 2B09 2B10 2B11 2B12 2B13
100n 100n 100n 100n 100n 100n 100n 100n
+2V5_DDR
2B18
3B01
10K
1% 16V 22u
2B17
FB01
FSVREF
100n
3B02
10K
1%
7B01
K4D263238F-UC50
Φ
VREF
VDD
28
CS
SDRAM
27
RAS
1M X 32 X 4
26
CAS
25
WE
3B03 150R 1%
IB03
55
CK
IB02 54
CK
53
CKE
23
0
56
1
DM
24
2
57
3
29
0
30 BA
1
31
0
32
1
33
2
34
3
47
4
48
5
A
49
6
50
7
51
8
45
9
36
10
37
11
38
39
40
NC
41
42
43
93
RFU
52
MCL
VSS
3 4
7. EN 51
5 6
2B14 2B15
2B16
100n 100n 100n
+2V5_DDR
44
VDDQ
87
88
NC
89
90
91
97
0
98
1
100
2
1
3
3
4
4
5
6
6
7
D 7
60
8
61
9
63
10
64
11
68
12
69
13
71
14
72
15
9
16
10
17
12
18
13
19
17
20
18
21
20
22
21
D 23
74
24
75
25
77
26
78
27
80
28
81
29
83
30
84
31
94
DQS
VSSQ
5 6
7 8
B10
A
TO/FROM SCALER
FSDATA(0)
FSDATA(1)
FSDATA(2)
FSDATA(3)
B
FSDATA(4)
FSDATA(5)
FSDATA(6)
FSDATA(7)
FSDATA(8)
FSDATA(9)
C
FSDATA(10)
FSDATA(11)
FSDATA(12)
FSDATA(13)
FSDATA(14)
FSDATA(15)
D
FSDATA(16)
FSDATA(17)
FSDATA(18)
FSDATA(19)
FSDATA(20)
FSDATA(21)
FSDATA(22)
E
FSDATA(23)
FSDATA(24)
FSDATA(25)
FSDATA(26)
FSDATA(27)
FSDATA(28)
F
FSDATA(29)
FSDATA(30)
FSDATA(31)
F_16040_010.eps
251005
7 8
2B01 A1
2B02 A1
2B03 A1
2B04 A2
2B05 A2
2B06 A2
2B07 A2
2B08 A3
2B09 A3
2B10 A3
2B11 A4
2B12 A4
2B13 A4
2B14 A4
2B15 A5
2B16 A5
2B17 B4
2B18 A4
3B01 A3
3B02 B3
3B03 C3
7B01 B3
FB01 B3
IB02 C2
IB03 C2