Rainbow Electronics MAX19997A - Manual (Page 33)

MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
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Typical Application Circuit
RF MAIN INPUT
RF DIV INPUT
C1
C8
C9
C13
C17
C18
R1
V CC
L2*
L1*
R3
C20
C19
IF MAIN OUTPUT
T1
R2
C14
LO
4:1
4:1
V CC
V CC
V CC
V CC
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18
28 29 30 31 32 33 34 35 36
19
20
21
22
23
24
25
26
27
GND
V CC
GND
GND
GND
GND
GND
GND
RFMAIN
RFDIV
EXPOSED
PAD
IFD_SET
GND GND
LO_ADJ_D
GND
V
CC
V
CC
GND LO_ADJ_M V
CC
GND GND IFM_SET
IFD+ IFD-
V
CC
IFM+ IFM-
LO
*USE 390nH (0805) INDUCTORS FOR AN IF FREQUENCY OF 200MHz.
CONTACT FACTORY FOR DETAILS.
**CONNECT INDUCTORS TO IMPROVE RF MATCH FROM 1800MHz TO
2400MHz. SEE TABLE 2 FOR DETAILS.
GND
GND
GND
GND
GND
V CC
MAX19997A
C4
V CC
C21
C15
V CC
R5
R4
V CC
L3*
L4*
R6
C10
C11
T2
IF DIV OUTPUT
C12
+
L7**
L8**
GND