500MHz to 1100MHz Adjustable
RF Predistorter
POWER
AMPLIFIER
P OUT = 7dBm
OUTP
6
ING
3
MAX2010
PREAMPLIFIER
V PF_S1 = 1.5V
P IN = 14dBm
9 INP
11 PFS1
OUTG 27
GBP 23
12 PFS2
PHASE
GAIN
19 PBRAW
CONTROL
CONTROL
GFS 24
18 PBEXP
PBIN PDCS1 PDCS2
GCS
V PBIN = 0.8V
17
13
14
25
V PDCS1 = 0V
V PDCS2 = 5V
Figure 4. AM-PM Response Tuning Circuit
Power-Supply Bypassing
Bypass each V CC pin with a 0.01μF capacitor.
Exposed Pad RF
Table 1. Suggested Components of
Typical Application Circuit
The exposed paddle (EP) of the MAX2010 ’ s 28-pin thin
QFN-EP package provides a low inductance path to
ground. It is important that the EP be soldered to the
ground plane on the PC board, either directly or
through an array of plated via holes.
DESIGNATION
C1, C2, C3, C10
C4, C5
C6, C8
C11, C12
L1, L2
R1, R2
VR1, VR2
VALUE
100pF ± 5%
0.01μF ± 10%
15pF ± 5%
2.2pF ± 0.1pF
5.6nH ±0.3nH
1k ? ± 5%
Skyworks
SMV1232-079
TYPE
0402 ceramic capacitors
0603 ceramic capacitors
0402 ceramic capacitors
0402 ceramic capacitors
0402 ceramic inductors
0402 resistors
Hyperabrupt varactor
diodes
16
______________________________________________________________________________________
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