EB-GS3440
Evaluation Board User Guide
57964 - 0
June 2012
7 of 10
2. Schematic
Figure 2-1:
GS
3440
S
chematic
3
4
2
1
12
1
13
1
6
TAB
8
14
2
3
9
4
11
10
15
7
6
5
BYPASS_94
LED DISABLE
J
UMPER
AUTO-SLEEP
POWER SUPPLIES
4.7nH
VCC_A_94
DNP
RED
VCC_A_94
4.7μF
4.7μF
VCC_DIG_94
10nF
WHITE
VCC_A_94
BLACK
10nF
75
Ω
GS3440
470nF
37.4
Ω
VCC_A_94
5.0k
Ω
SMA
4.7nH
SWDIP2
WHITE
1μF
SMA
VCC_A_94
RED
100k
Ω
MMBT3904
14k
Ω
1.21k
Ω
YELLOW
VCC_DIG_94
3
6
5
Ω
VCC_O_94
1μF
221
Ω
5.0k
Ω
75
Ω
BNC
10nF
10nF
100nF
VCC_O_94
10μF
10μF
100nF
R
6
R5
R9
D1
R12
Q4
SW1
TP1
C1
R28
TP2
C2
J
P1
R29
J
P4
TP4
C15
C14
C13
J
P3
C12
TP3
TP5
C7
C8
J
P2
R7
U2
J
3
J
2
C10
C9
J
1
L1
L2
R3
R8
C4
C3
CDB_94
BYPASS_94
3
2
1
TA
B
VCC_A
CD
SLEEP
VCC_O
VEE_O
DDO
DDO
OP_CTL
SQ_AD
J
BYPASS
AGC
AGC
GAIN_SEL
SDI
SDI
VEE_A
C
B
E
1
ON
1
2
3
3
2
1
1
2
3
1
2
2
1
C5
R2
R4
