Manual

MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
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DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER
C1, C8 2 1pF microwave capacitors (0402)
Murata Electronics North
America, Inc.
C14 1 1.5pF microwave capacitor (0402)
Murata Electronics North
America, Inc.
C4, C9, C13, C15,
C17, C18
6 0.01µF microwave capacitors (0402)
Murata Electronics North
America, Inc.
C10, C11, C12,
C19, C20, C21
6 82pF microwave capacitors (0603)
Murata Electronics North
America, Inc.
L1, L2, L3, L4 4 120nH wire-wound high-Q inductors* (0805) Coilcraft, Inc.
L7, L8 2
12nH i nd uctor ( 0402) . U se to i m p r ove RF m atch fr om 1800M H z to 2400M H z.
C onnect L7 and L8 fr om p i ns 1 and 9, r esp ecti vel y, to g r ound .
Coilcraft, Inc.
R1, R4 2
750Ω ±1% resistors (0402). Use for V
CC
= +5.0V applications. Larger
values can be used to reduce power at the expense of some
performance loss. See the Typical Operating Characteristics section.
Digi-Key Corp.
R2, R5 2
698Ω ±1% resistors (0402). Use for V
CC
= +5.0V applications. Larger
values can be used to reduce power at the expense of some
performance loss. See the Typical Operating Characteristics section.
Digi-Key Corp.
R3, R6 2
0Ω resistors (1206). These resistors can be increased in value to reduce
power dissipation in the device, but reduces the compression point. Full
P
1dB
performance achieved using 0Ω.
Digi-Key Corp.
T1, T2 2 4:1 IF balun (TC4-1W-17+) Mini-Circuits
U1 1 MAX19997A IC (36 TQFN-EP)
Maxim Integrated Products,
Inc.
Table 2. Extended RF Band Application Circuit Component Values (Optimized for
1950MHz Operation)
* Use 390nH (0805) inductors for an IF frequency of 200MHz. Contact the factory for details.