GENNUM EB-GS2985-S, User Manual

Page: 21 / 26

EB-GS2985-S
Evaluation Board User Guide
52246 - 2
July 2009
21 of 25
2.2 Power & Control Schematic
Figure 2-2: Power & Control Schematic
Power C onne c tors
G
S
D
Q1
DMP2225L PMO
S
G
S
D
Q2
DMP2225L PMO
S
V CC 2
V CC 2
Q4
NPN
EQ C TRL
G ND
R48 49k9
R49 49k9
R50 49k9
Q3
NPN
R47
221R
R32 14k
V CC 1
SS 0
D
6G
R
EEN
C D C TRL
G ND
BYPA
SS
SS 1
G ND
R
3
0
75R
AU
T
O
BYPA
SS
R C LK C TRL
LO C KED
Q8
NPN
LO S
SS
0
1 2
3 4
S W2
219-2M S T
R33 14k
Q5
NPN
SS
1
1
3
2
C D_ S EL
R39 14k
R34 14k
Q 6
NPN
G ND
V CC 1
C
35
DNP
1
3
2
R4 6
5k DNP
R35 14k
Q7
NPN
1
C D
3V3/2V5
R3 6 14k
+
C 41
10u
C 40
100n
1
G ND
1 EQ
3V3
G ND
V CC 1
1
3
2
R C LK_ S EL
C
D
_
EQ_EN
b
C
D_
DI
Sb
R31
221R
1
R C LK
3V3/2V5
V CC 2
EQ_
G
AI
N
_
S
EL
+ C 44
10u
EQ_BYPA
SS
C 45
100n
EQ_
C
M
S
ET
G ND
1 2 3
6 5 4
S W3
219-3M S T
EQ_
S
Q_AD
J
R2
6
75R
D2
G
R
EEN
V CC 1
V CC 3
R
2
7
75R
D3
G
R
EEN
R
2
8
75R
D4
G
R
EEN
1 2 3 4 8 7 6 5
9 10 11 12 13 14 15 1
6
S W1
219-8M S T
D5
RE
D
R
2
9
100R
1
J P7
TP DNP
V CC 2
D1
G
R
EEN
GS 2985 C ontrol
GS 2984 C ontrol
R
2
5
75R
+
C 3 6
10u
C 37
100n
1
3
2
C D_TERM
_ S EL
1
C D_TERM
2V5-5V
G ND
V CC _Term
+
C 38
10u
C 39
100n
G ND
GS 2988 C ontrol
G ND
R43 49k9
R41 49k9
R42 49k9
R38 49k9
R40 49k9
R45 49k9
R37 49k9
R44 49k9
DA
TA
/
C
LO
C
K
DA
TA
_
M
UTE
DDO
1
_
DI
S
ABLE
A
U
TO
/MA
N
AUTO/MAN
HIF
S D/HD