ltc1757a-2 Linear Technology Corporation, ltc1757a-2 Datasheet - Page 5

• Manufacturer Part Number: ltc1757a-2
• Description: Single/dual Band Rf Power Controllers
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRA
68
33pF
2
5
10
RF
GND
V
0.02
CC
SHUTDOWN
THERMAL
–
+
BG1
60 A
CS
185
R
METAL
0.05
SENSE
150k
22pF
OPERATE SHDN
OFFSET
TRIM
W
V
IN
3
60 A
TSDB
42k
42k
SHDN
1.2V BANDGAP
1
(LTC1757A-2)
OVERCURRENT
V
0.02
100
METAL
IN
GAIN
TRIM
BG1
600mV
–
+
RFDET
XMT AUTOZERO
Li-Ion
g
m
7
TXEN
1.2V
600mV
150k
900MHz
16.7k
AUTOZERO
RF PA
6
33k
33k
PCTL
33k
AZ
6pF
50mV
–
+
–
ICL
+
DIPLEXER
LTC1757A-1/LTC1757A-2
+
–
50
150k
CAMP
TXENB
TXENI
TSDB
4
+
–
BSEL
ADJ
CONTROL
RF PA
OVP
VPC
MUX
C
C
400 A
g
g
m
m
PB
PA
1.8GHz
PA
PB
54.5k
100
100
173k
1.2V
140k
110k
12
12
V
IN
V
V
PCA
PCB
1757A BD
9
8
5