7-2. Circuit Diagram
+1.26V FOR Core Power
Vout=0.923*(1+R76/R49)
3A
PWR-ON/OFF-GPIO46
R350
100
SDA_MCU
R228 2.2R/2W
C265 0.1uF
3
2
1
4
ADJ
OUT
IN
N205 AP1117-3.3
3
1
2
4
ADJ
IN
N200
AP1084-ADJ
C242 0.1uF
GND
2
VOUT
3
VIN
1
GND
4
N1
LM7805
R76
1K_1%
C382
2.2uF
L206 FB220/500mA
C387
2.2uF
L208 NC/FB220/100mA
PB-ON/OFF
3
1
2
4
ADJ
IN
N202
AP1117-ADJ/AP1084-ADJ
R175
100
PB-ADJUST
L214 FB220/100mA
L204
NC
C276 2.2uF
R225
NC/10K
C218 2.2uF
C219 2.2uF
C216 0.1uF
C238 0.1uF
C17
0.1uF
C251 2.2uF
R219
NC/0R
C247 0.1uF
C202 0.1uF
C252 2.2uF
L210 FB220/300mA
C4
10nF
S1
1
G1
2
S2
3
G2
4
D1
8
D1
7
D2
6
D2
5
N201 9435
C257 4.7uF
R213 NC/10K
C221 2.2uF
C6
10nF
V201 3904
C261 0.1uF
C13
0.1uF
R205 4.7K
C22 0.1uF
R78 4.7K
C235 0.1uF
R210 100K
C210 0.1uF
+
C275 100uF/16V
C270 2.2uF
R204 10K
C256 2.2uF
C211 NC/2.2uF
C271 0.1uF
R207 10K
D6 NC/1N5822
C266 0.1uF
L211 FB220/100mA
C18 0.1uF
V203 3904
R216 10R/2W
L218
FB
C243 0.1uF
C253 2.2uF
L205
FB
C239 1nF
D3 NC/1N5822
C212 2.2uF
C23 10nF
+3.3V NORMAL POWER
R224
10K
C174
100p
+3.3V STANDBY POWER
C272 0.1uF
+
C220 100uF/16V
KEY
1
ON/OFF
2
GND
3
VCC
4
RESET
7
LED-G
8
LED-R
9
IR
10
SCL
5
SDA
6
U14 PD78F9202
R209 10K
R91
4.7K
+
C225 100uF/16V
C278 2.2uF
C263 2.2uF
R217 10R/2W
L212 FB220/100mA
C24
0.1uF
C19 10nF
C260 2.2uF
C259 0.1uF
PW_ON/OFF-INV
R203 4.7K
C241 0.1uF
R215
10K
R179
100
+
CA6
470uF/16V
R223 10K
R290
NC/100R
C14
0.1uF
R227 1K_1%
C206 0.1uF
L207 FB220/500mA
L203
FB
+
CA3
470uF/16V
R49 2.4K_1%
C217 0.1uF
C207 0.1uF
+
C274 100uF/16V
R235
100
C204 0.1uF
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS
8
COMP
6
U45
MP1482
R208
10K
R77
110R_1%
C248 0.1uF
R7 2.7K_1%
C215 0.1uF
R226 2.43K_1%
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
CN10
Power
R218 4.7K
3
2
1
4
ADJ
OUT
IN
N204 AP1117-ADJ
C273 2.2uF
R84
110R_1%
1
3
2
Q36 3906
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS
8
COMP
6
U43
MP1484
R83
180R_1%
C246 1nF
C200 0.1uF
R90
100K
C250 1nF
L213 FB220/100mA
R341
100
R93
10K
C209 0.1uF
R86
100K
C277 0.1uF
R85
180R_1%
L216
NC/FB
C264 0.1uF
R169
100
L27
FB/2A
L209 FB220/100mA
C279 0.1uF
R214 100
C249 0.1uF
R50
2.2K
L200
FB
R4
12K_1%
R79
NC
L215 FB220/100mA
R202
100R
1
2
3
V200 3904
C234 0.1uF
R177
100
R543 10K
R201 1K
C205 0.1uF
C213 2.2uF
+
CA5
100uF/16V
V204 3904
R92
0
V202 3904
R8
2.2K
+
CA1
100uF/16V
C214 2.2uF
C245 0.1uF
R212 2.2K
R230
100
5VMst
5VMst
5VSTB
VCC-Panel
+12V
+12V
5V_TUNER
5VAIN
+3.3VDD
5VMst
+3.3AVDD
VDDC
AVDDL_DVI
VDDC
DDR2_1V8
VDDP
+3.3VDD
AVDD_MPLL
AVDD_3.3
+3.3AVDD
AVDD_VIF
AVDD_LPLL
+3.3AVDD
+3.3VDD
+3.3VDD
+3.3VDD
5VAIN
R229
0R
AVDD_AUSDM
3.3VDDR
DDR2_1V8
+12V
AVDD_OTG
5VAIN
5VDDR
5VAIN
+3.3VDD
+3.3AVDD
AVDD_MEMPLL
VDDC
+12V
3.3VSTB
+12V
+12V
3.3VSTB
3.3VSTB
5VSTB
3.3VSTB
PWR-ON/OFF-GPIO462
5VSTB
5VMst
5VMst
ON_PANEL-GPIO160
2
BRI_ADJ-PWM2
2
ON_PBACK-GPIO6
2
BRT_CNTL_OUT
14
BRT_CNTL_IN
14
IR_IN
2
KEY1-MCU
2
STATUS
2
LED_R_MCU
2
PANEL POWER
R232 10K
R478 10K
MCU I2C
M_SCL
1
3
2
Q54
2N7002
R489 10K
1
3
2
Q60
2N7002
3.3VSTB
M_SCL
2,9,12,14
3.3VSTB
SDA_MCU
M_SDA
2,9,12,14
+3.3VDD
M_SDA
SCL_MCU
PW_ON/OFF-INV
TUNER POWER
PB-ON/OFF
PWMÐźÅÓÉPIN 11 ¸ü¸Äµ½PIN 8
1
H9 NC
1 2 3
4
5
6
7
8
9
H10
PAD
1
H13 NC
1
H7 NC
1 2 3
4
5
6
7
8
9
H2
PAD
1 2 3
4
5
6
7
8
9
H5
PAD
1
H8 NC
1 2 3
4
5
6
7
8
9
H1
PAD
1 2 3
4
5
6
7
8
9
H6
PAD
1 2 3
4
5
6
7
8
9
H3
PAD
BRI_ADJ-PWM2
1 2 3
4
5
6
7
8
9
H12
PAD
1 2 3
4
5
6
7
8
9
H4
PAD
1 2 3
4
5
6
7
8
9
H15
PAD
R222
NC/10K
1 2 3
4
5
6
7
8
9
H11
PAD
1 2 3
4
5
6
7
8
9
H16
PAD
1
2
3
V205 NC/3904
HOLE
+3.3V STANDBY POWER
1
H14 NC
1
H17 NC
ON_PBACK-GPIO6
R220 NC/4.7K
PB-ADJUST
SCL_MCU
R231 NC/0R
PWR_ON/OFF
TO Invert
+1.8V FOR DDR2 NORMAL POWER
L217 NC/FB
+3.3V NORMAL POWER
SOT-223
TO252
STB MCU
MSD209_STATUS
TO252
PWR-ON/OFF-GPIO46
KEY1-MCU
MSD209_STATUS
PWR_ON/OFF
PM_RESET
IR_MCU
SDA_MCU
SCL_MCU
IR_IN
IR_MCU
STATUS
LED_R_MCU
5V DC-DC
1
2
3
4
L6 10uH
3A
ON_PANEL-GPIO160
¿ÉÒÔ½µµÍ8mA ×óÓÒ´ý»úµçÁ÷
R211
NC/0R
R206
100R
C172 0.1uF
+
C226 NC/100uF/16V
+3.3VDD
¸ü¸Ä¿ª»úÆÁÉÁ
Title
Size
Document Number
Rev
Date:
Sheet
of
System Power
1.0
MSD209DG_BGA21x21_IC Demo board
A2
1
15
Wednesday, November 18, 2009
1
2
3
4
L5 10uH
POWER INPUT
R488/R474¸ü¸ÄÓÉ4.7K¸ü¸ÄΪ10K ½â¾öMCUÓëE2P SDAÐźŵ͵çƽ²»µÍµÄÎÊÌâ Q60¡¢Q54 1½ÅÓÉ3.3VSTB_MCU¸ü¸ÄΪ+3.3VDD ½â¾öMCU²»ÄÜÖ±½ÓÉý¼¶µÄÎÊÌâ
PM_RESET
1 2 3 4 5
CN15 I2C_BUS
SCL_MCU SDA_MCU
3.3VSTB
Vout=Vrefx(1+(R2/R1))+IadjxR2 =1.25x(1+(1k/2.4k))+55uAx1k=1.82V
R2
R1
DDR2 Power
+1.26V FOR MSTAR IC STANDBY POWER
Service Manual
Model No.: LET40T3
31
Содержание LET40T3
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