MAX2009ETI+ Maxim Integrated Products, MAX2009ETI+ Datasheet - Page 12

• Manufacturer Part Number: MAX2009ETI+
• Description: RF Wireless Misc IC RF PREDISTORT ADJ djustable RF Predist
• Manufacturer: Maxim Integrated Products
• Type: Adjustable RF Predistorterr

Specifications of MAX2009ETI+

• Operating Frequency: 1200 MHz to 2500 MHz
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 V
• Supply Current: 10 mA
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TQFN-28
• Mounting Style: SMD/SMT
• Ic Function: Adjustable RF Predistorter
• Supply Voltage Range: 4.75V To 5.25V
• Digital Ic Case Style: QFN
• No. Of Pins: 28
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX2009 adjustable predistorter can provide up to
12dB of ACPR improvement for high-power amplifiers by
introducing gain and phase expansion to compensate
for the PA’s gain and phase compression. The MAX2009
enables real-time software-controlled distortion correc-
tion, as well as set-and-forget tuning through the adjust-
ment of the expansion starting point (breakpoint) and the
rate of expansion (slope). The gain and phase break-
1200MHz to 2500MHz Adjustable
RF Predistorter
12
8, 10, 16, 20,
1, 2, 4, 5, 7,
22, 26, 28
______________________________________________________________________________________
PIN
EP
11
12
13
14
15
17
18
19
21
23
24
25
27
3
6
9
PBRAW
PDCS1
PDCS2
PBEXP
NAME
OUTG
OUTP
V
PFS1
PFS2
V
PBIN
GND
GND
GBP
GCS
GFS
ING
INP
CCG
CCP
Detailed Description
Ground. Internally connected to the exposed paddle.
RF Gain Input. Connect ING to a coupling capacitor if it is not connected to OUTP. ING is
interchangeable with OUTG.
RF Phase Output. Connect OUTP to a coupling capacitor if it is not connected to INP. OUTP is
interchangeable with INP.
RF Phase Input. Connect INP to a coupling capacitor. This pin is interchangeable with OUTP.
Fine Phase-Slope Control Input 1. See the Typical Application Circuit.
Fine Phase-Slope Control Input 2. See the Typical Application Circuit.
Digital Coarse Phase-Slope Control Range Input 1. Set to logical zero for the steepest slope.
Digital Coarse Phase-Slope Control Range Input 2. Set to logical zero for the steepest slope.
Phase Breakpoint Control Input
Phase Expansion Output. Connect PBEXP to PBRAW to use PBIN as the breakpoint control voltage.
Uncompensated Phase Breakpoint Input
Gain-Control Supply Voltage. Bypass with a 0.01µF capacitor to ground as close to the device as
possible. Gain section can operate without V
Gain Breakpoint Control Input
Fine Gain-Slope Control Input
Coarse Gain-Slope Control Input
RF Gain Output. Connect OUTG to a coupling capacitor. OUTG is interchangeable with ING.
Exposed Ground Paddle. Solder EP to the ground plane.
Phase-Control Supply Voltage. Bypass with a 0.01µF capacitor to ground as close to the device as
possible. Phase section can operate without V
points can be set over a 20dB input power range. The
phase expansion slope is variable from 0.3°/dB to
2.0°/dB and can be adjusted for a maximum of 24° of
phase expansion. The gain expansion slope is variable
from 0.1dB/dB to 0.6dB/dB and can be adjusted for a
maximum of 7dB gain expansion.
The following sections describe the tuning methodology
best implemented with a class A amplifier. Other classes
of operation may require significantly different settings.
CCP
FUNCTION
CCG
.
.
Pin Description