MAX2009 Maxim Integrated Products, MAX2009 Datasheet - Page 16

• Manufacturer Part Number: MAX2009
• Description: 1200MHz to 2500MHz Adjustable RF Predistorter The MAX2009 Adjustable RF Predistorter is Designed to Improve Power Amplifier (PA) Adjacent-channel Power Rejection (ACPR) BY Introducing Gain And Phase Expansion in a pa Chain to Compensate For The Pa's
• Manufacturer: Maxim Integrated Products

Bypass each V
The exposed paddle (EP) of the MAX2009’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.
1200MHz to 2500MHz Adjustable
RF Predistorter
Figure 4. AM-PM Response Tuning Circuit
16
______________________________________________________________________________________
V
PF_S1
CC
pin with a 0.01µF capacitor.
= 1.5V
Power-Supply Bypassing
Exposed Pad RF
V
V
V
PBIN
PDCS1
PDCS2
= 0.8V
PREAMPLIFIER
= 0V
= 5V
P
IN
= 14dBm
11
12
19
18
9
INP
PFS1
PFS2
PBRAW
PBEXP
Table 1. Suggested Components of
Typical Application Circuit
C1, C6, C8, C10 8.2pF ±0.25pF 0402 ceramic capacitors
DESIGNATION
VR1, VR2
C2, C3
C4, C5
C7, C9
R1, R2
OUTP
PBIN
17
CONTROL
PHASE
6
PDCS1
13
P
OUT
= 7dBm
ING
PDCS2
14
SMV1232-079
1.5pF ±0.1pF
0.01µF ±10%
0.5pF ±0.1pF
3
Skyworks
1kΩ ±5%
CONTROL
VALUE
GAIN
AMPLIFIER
MAX2009
POWER
GCS
25
OUTG
GBP
GFS
0402 ceramic capacitors
0603 ceramic capacitors
0402 ceramic capacitors
0402 resistors
Hyperabrupt varactor
diodes
27
23
24
TYPE