lt5575 Linear Technology Corporation, lt5575 Datasheet - Page 10

• Manufacturer Part Number: lt5575
• Description: 800mhz To 2.7ghz High Linearity Direct Conversion Quadrature Demodulator
• Manufacturer: Linear Technology Corporation

LT5575
TEST CIRCUIT
REF DES
C5, C7
C8
C9
R1
10
Figure 2. Top Side of Evaluation Board
1000pF
VALUE
100kΩ
0.1µF
2.2µF
0.062"
0.018"
0.018"
0402
3216
0402
0402
SIZE
RF
r
J1
= 4.4
AVX TPSA225MO10R1800
I
I
OUT
OUT
RF
GND
DC
GND
AVX 0402ZD104KAT
AVX 04025C102JAT
–
+
PART NUMBER
J3
J4
C10
(OPT)
Figure 1. Evaluation Circuit Schematic
EN
5575 F02
C3
(OPT)
C4
(OPT)
GND
RF
GND
GND
R1
100K
LT5575
FREQUENCY
RANGE
LOW BAND:
800 TO 1000MHz
MID BAND:
1000 TO 1500MHz
HIGH BAND:
1500 TO 2700MHz
(OPT)
(OPT)
GND
GND
V
LO
CC
C2
C1
Figure 3. Bottom Side of Evaluation Board
C7
1nF
J5
J6
Q
Q
OUT
OUT
RF MATCH
+
–
4.7pF
C10
C5
1nF
2pF
C8
0.1µF
-
5575 F01
C9
2.2µF
C12
(OPT)
V
CC
LO MATCH
3.9pF
2pF
C12
-
J2
LO
BASEBAND
C1-C4
2.2pF
10pF
5575 F03
-
5575f