MAX2009ETI+ Maxim Integrated Products, MAX2009ETI+ Datasheet

RF Wireless Misc IC RF PREDISTORT ADJ djustable RF Predist

MAX2009ETI+

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

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 RF predistorter is designed to
improve power amplifier (PA) adjacent-channel power
rejection (ACPR) by introducing gain and phase expan-
sion in a PA chain to compensate for the PA’s gain and
phase compression. With its +23dBm maximum input
power level and wide adjustable range, the MAX2009
can provide up to 12dB of ACPR improvement for
power amplifiers operating in the 1200MHz to 2500MHz
frequency band. Lower frequencies of operation can be
achieved with this IC’s counterpart, the MAX2010.
The MAX2009 is unique in that it provides up to 7dB of
gain expansion and 24° of phase expansion as the
input power is increased. The amount of expansion is
configurable through two independent sets of control:
one set adjusts the gain expansion breakpoint
and slope, while the second set controls the same
parameters for phase. With these settings in place, the
linearization circuit can be run in either a static set-and-
forget mode, or a more sophisticated closed-loop
implementation can be employed with real-time soft-
ware-controlled distortion correction. Hybrid correction
modes are also possible using simple lookup tables to
compensate for factors such as PA temperature drift
or PA loading.
The MAX2009 comes in a 28-pin thin QFN exposed
pad (EP) package (5mm x 5mm) and is specified for
the extended (-40°C to +85°C) temperature range.
19-2929; Rev 0; 8/03
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
WCDMA/UMTS, cdma2000, DCS1800, and
PCS1900 Base Stations
Feed-Forward PA Architectures
Digital Baseband Predistortion Architectures
Military Applications
WLAN Applications
________________________________________________________________ Maxim Integrated Products
General Description
Applications
1200MHz to 2500MHz Adjustable
♦ Up to 12dB ACPR Improvement*
♦ Independent Gain and Phase Expansion Controls
♦ Gain Expansion Up to 7dB
♦ Phase Expansion Up to 24°
♦ 1200MHz to 2500MHz Frequency Range
♦ Exceptional Gain and Phase Flatness
♦ Group Delay <1.3ns (Gain and Phase Sections
♦ ±0.04ns Group Delay Ripple Over a 100MHz Band
♦ Capable of Handling Input Drives Up to +23dBm
♦ On-Chip Temperature Variation Compensation
♦ Single +5V Supply
♦ Low Power Consumption: 75mW (typ)
♦ Fully Integrated into Small 28-Pin Thin QFN
*Performance dependent on amplifier, bias, and modulation.
*EP = Exposed paddle.
MAX2009ETI-T
*INTERNALLY CONNECTED TO EXPOSED GROUND PADDLE.
Combined)
Package
GND*
GND*
GND*
GND*
OUTP
GND*
ING
PART
1
2
3
4
5
6
7
28
8
27
9
MAX2009
RF Predistorter
26
10
Ordering Information
-40°C to +85°C
TEMP RANGE
Functional Diagram/
25
11
Pin Configuration
CONTROL
GAIN
24
12
CONTROL
PHASE
23
13
PIN-PACKAGE
28 Thin QFN-EP*
22
14
Features
21
20
19
18
17
16
15
V
GND*
PBRAW
PBEXP
PBIN
GND*
V
CCG
CCP
1

Related parts for MAX2009ETI+

MAX2009ETI+ Summary of contents

Page 1

... PCS1900 Base Stations Feed-Forward PA Architectures Digital Baseband Predistortion Architectures Military Applications WLAN Applications ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1200MHz to 2500MHz Adjustable ♦ 12dB ACPR Improvement* ♦ Independent Gain and Phase Expansion Controls ♦ ...

Page 2

Adjustable RF Predistorter ABSOLUTE MAXIMUM RATINGS GND ..............................................-0.3V to +5.5V CCG CCP ING, OUTG, GCS, GFS, GBP to GND......-0. INP, OUTP, PFS_, PDCS_, PBRAW, PBEXP, PBIN to GND ............................-0. ...

Page 3

AC ELECTRICAL CHARACTERISTICS (MAX2009 EV kit +4.75V to +5.25V, 50Ω environment, P CCG CCP V = +5.0V +1.2V GFS GBP PBIN are 2140MHz +5V, ...

Page 4

Adjustable RF Predistorter AC ELECTRICAL CHARACTERISTICS (continued) (MAX2009 EV kit +4.75V to +5.25V, 50Ω environment, P CCG CCP V = +5.0V +1.2V GFS GBP PBIN PDCS1 are at ...

Page 5

EV kit +5.0V -20dBm, V CCP IN unless otherwise noted.) SUPPLY CURRENT vs. SUPPLY VOLTAGE 6.3 6.2 6.1 6 +85° +25°C A 5.8 5 -40°C 5.6 A ...

Page 6

Adjustable RF Predistorter (MAX2009 EV kit +5.0V -20dBm, V CCP IN unless otherwise noted.) SMALL-SIGNAL GAIN vs. FREQUENCY -5.0 -5.5 -6 4.75V, 5.0V, 5.25V CCP -6.5 -7.0 -7.5 -8.0 -8.5 -9.0 ...

Page 7

EV kit +5.0V -20dBm, V CCP IN unless otherwise noted.) GAIN EXPANSION vs. INPUT POWER -6.0 -6.2 -6 -6.8 -7.0 -7 -7.4 -7 ...

Page 8

Adjustable RF Predistorter (MAX2009 EV kit +5.0V -20dBm, V CCP IN unless otherwise noted.) GAIN EXPANSION vs. INPUT POWER -5 5. 1.5V PDCS1 PF_S1 -5 -40°C A ...

Page 9

EV kit +5.0V -20dBm, V CCG IN otherwise noted.) LARGE-SIGNAL INPUT RETURN LOSS vs. FREQUENCY +15dBm 1.1 1.3 1.5 ...

Page 10

Adjustable RF Predistorter (MAX2009 EV kit +5.0V -20dBm, V CCG IN otherwise noted.) GROUP DELAY vs. FREQUENCY 0.75 0.70 D 0.65 0. 0.55 B 0.50 0.45 1.1 1.3 1.5 1.7 1.9 ...

Page 11

EV kit +5.0V -20dBm, V CCG IN otherwise noted.) GAIN EXPANSION vs. INPUT POWER - -11 - -15 D -17 -19 -21 - ...

Page 12

Adjustable RF Predistorter PIN NAME 10, 16, 20, GND Ground. Internally connected to the exposed paddle. 22, 26 Gain Input. Connect ING to a coupling capacitor ...

Page 13

Phase Expansion Circuitry Figure 1 shows a typical PA’s phase behavior with respect to input power. For input powers less than the breakpoint level, the phase remains relatively constant. As the input power becomes greater than the break- point level, ...

Page 14

Adjustable RF Predistorter PF_S1 Figure 2. Simplified Phase Slope Internal Circuitry PA GAIN COMPRESSION BREAKPOINT SLOPE P (dBm) IN Figure 3. PA Gain Compression Canceled by MAX2009 Gain Expansion 14 ______________________________________________________________________________________ PFS1 PHASE-CONTROL CIRCUITRY PFS2 2 PDCS1 ...

Page 15

Gain Expansion Breakpoint The gain expansion breakpoint is usually controlled by a DAC connected through the GBP pin. The GBP input voltage range of 0. corresponds to a breakpoint input power range of 3dBm to 23dBm. To achieve ...

Page 16

Adjustable RF Predistorter V = 1.5V PF_S1 Figure 4. AM-PM Response Tuning Circuit Power-Supply Bypassing Bypass each V pin with a 0.01µF capacitor. CC Exposed Pad RF The exposed paddle (EP) of the MAX2009’s ...

Page 17

PREAMPLIFIER 1.5V PF_S1 V = 0.8V PBIN PDCS1 PDCS2 Figure 5. MAX2009 Phase and Gain Optimization Circuit ______________________________________________________________________________________ 1200MHz to 2500MHz Adjustable PREAMPLIFIER GAIN = 7dB 6 3 OUTP ING ...

Page 18

Adjustable RF Predistorter mils 160 mils C6 C7 POWER AMPLIFER GND* OPTIONAL MATCH COMPENSATION* GND mils 160 mils C8 ING C9 GND* GND* C10 OUTP GND* PREAMPLIFER ...

Page 19

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2003 Maxim Integrated Products 1200MHz to 2500MHz Adjustable is a registered trademark of Maxim Integrated Products ...

Related keywords