MAXIM MAX2010 Technical data

General Description

The MAX2010 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 gain and
phase compression. With its +23dBm maximum input
power level and wide adjustable range, the MAX2010
can provide up to 12dB of ACPR improvement for
power amplifiers operating in the 500MHz to 1100MHz
frequency band. Higher frequencies of operation can
be achieved with this IC’s counterpart, the MAX2009.

The MAX2010 is unique in that it provides up to 6dB of
gain expansion and 21° 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 software-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 MAX2010 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.

Applications

cdma2000™, GSM/EDGE, and iDEN Base Stations

Feed-Forward PA Architectures

Digital Baseband Predistortion Architectures

Military Applications

Features

♦ Up to 12dB ACPR Improvement*
♦ Independent Gain and Phase Expansion Controls
♦ Gain Expansion Up to 6dB
♦ Phase Expansion Up to 21°
♦ 500MHz to 1100MHz Frequency Range
♦ Exceptional Gain and Phase Flatness
♦ Group Delay <2.4ns (Gain and Phase Sections

Combined)

♦ ±0.03ns 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

Package

*Performance dependent on amplifier, bias, and modulation.

MAX2010

500MHz to 1100MHz Adjustable

RF Predistorter

________________________________________________________________ Maxim Integrated Products 1

Functional Diagram/

Pin Configuration

Ordering Information

19-2930; Rev 0; 8/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

*EP = Exposed paddle.

cdma2000 is a trademark of Telecommunications Industry
Assoc.

PART TEMP RANGE PIN-PACKAGE

MAX2010ETI-T -40°C to +85°C 28 Thin QFN-EP*

GND*

OUTG

GND*

GCS

GFS

28 27 26 25 24 23 22

1

GND*

2

GND*

3

ING

4

GND*

5

GND*

6

OUTP

7

GND*

*INTERNALLY CONNECTED TO EXPOSED GROUND PADDLE.

MAX2010

8 9 10 11 12 13 14

INP

GND*

GND*

CONTROL

PFS1

GAIN

PHASE

CONTROL

PFS2

GBP

PDCS1

GND*

PDCS2

21

V

CCG

20

GND*

PBRAW

19

18

PBEXP

17

PBIN

16

GND*

15

V

CCP

MAX2010

500MHz to 1100MHz Adjustable
RF Predistorter

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(MAX2010 EV kit; V

CCG

= V

CCP

= +4.75V to +5.25V; no RF signal applied; INP, ING, OUTP, OUTG are AC-coupled and terminated to

50Ω. V

PF_S1

= open; PBEXP shorted to PBRAW; V

PDCS1

= V

PDCS2

= 0.8V; V

PBIN

= V

GBP

= V

GCS

= GND; V

GFS

= V

CCG;TA

= -40°C to

+85°C. Typical values are at V

CCG

= V

CCP

= +5.0V, TA= +25°C, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

V

CCG

, V

CCP

to GND ..............................................-0.3V to +5.5V

ING, OUTG, GCS, GFS, GBP to GND......-0.3V to (V

CCG

+ 0.3V)

INP, OUTP, PFS_, PDCS_, PBRAW,

PBEXP, PBIN to GND ............................-0.3V to (V

CCP

+ 0.3V)

Input (ING, INP, OUTP, OUTG) Level ............................+23dBm

PBEXP Output Current ........................................................±1mA

Continuous Power Dissipation (T

A

= +70°C)
28-Pin Thin QFN-EP

(derate 21mW/°C above +70°C)...............................1667mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering 10s) ..................................+300°C

Supply Voltage V

Supply Current

Analog Input Voltage Range

Logic-Input High Voltage PDCS1, PDCS2 (Note 1) 2.0 V

Logic-Input Low Voltage PDCS1, PDCS2 (Note 1) 0.8 V

Logic Input Current -2 +2 µA

PARAMETER CONDITIONS MIN TYP MAX UNITS

, V

CCG

CCP

V

CCP

V

CCG

PBIN, PBRAW 0 V

GBP, GFS, GCS 0 V

V

= V

GFS

GCS

V

= 0 to +5V -100 +170Analog Input Current

GBP

= 0 to +5V -100 +220

V

PBIN

= V

PBRAW

= 0V -2 +2

4.75 5.25 V

5.8 7

10 12.1

CCP

CCG

mA

V

µA

MAX2010

500MHz to 1100MHz Adjustable

RF Predistorter

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS

(MAX2010 EV kit, V

CCG

= V

CCP

= +4.75V to +5.25V, 50Ω environment, PIN= -20dBm, fIN= 500MHz to 1100MHz, V

GCS

= +1.0V,

V

GFS

= +5.0V, V

GBP

= +1.2V, V

PBIN

= V

PDCS1

= V

PDCS2

= 0V, V

PF_S1

= +5V, V

PBRAW

= V

PBEXP,TA

= -40°C to +85°C. Typical val-

ues are at f

IN

= 880MHz, V

CCG

= V

CCP

= +5V, TA= +25°C, unless otherwise noted.) (Notes 1, 2)

PARAMETER CONDITIONS MIN TYP MAX UNITS

Operating Frequency Range 500 1100 MHz

VSWR ING, INP, OUTG, OUTP 1.3:1

PHASE CONTROL SECTION

Nominal Gain -5.5 dB

Gain Variation Over Temperature TA = -40°C to +85°C-1.7dB

Gain Flatness Over a 100MHz band ±0.1 dB

Phase-Expansion Breakpoint
Maximum

Phase-Expansion Breakpoint
Minimum

Phase-Expansion Breakpoint
Variation Over Temperature

Phase Expansion

V

= +5V 23 dBm

PBIN

V

= 0V 0.7 dBm

PBIN

= -40°C to +85°C ±1.5 dB

T

A

V

= +5V,

PF_S1

= V

V

PDCS1

P

= -20 dBm to +23 dBm

IN

V

= 5V,

PDCS1

V

= 0V,

PDCS2

= +1.5V

V

PF_S1

V

= 0V,

PDCS1

V

= 5V,

PDCS2

= +1.5V

V

PF_S1

PDCS2

= 0V,

21

16

14

Degrees

V

= 0V,

PF_S1

Phase-Expansion Slope
Maximum

Phase-Expansion Slope Minimum

Phase-Slope Variation Over
Temperature

= V

V

PDCS1

P

= -20dBm to +23dBm

IN

= +9dBm 1.4

P

IN

= 0V,

V

PF_S1

V

= V

PDCS1

= +9dBm

P

IN

= +9dBm, TA = -40°C to +85°C 0.05

P

IN

PDCS2

PDCS2

= +5V,

= +5V,

6

0.6

Degrees

/dB

Degrees

/dB

Degrees

/dB

Phase Ripple Over a 100MHz band, deviation from linear phase ±0.02 Degrees

Noise Figure 5.5 dB

Absolute Group Delay Interconnects de-embedded 1.3 ns

Group Delay Ripple Over a 100MHz band ±0.01 ns

Parasitic Gain Expansion PIN = -20dBm to +23dBm +0.4 dB

MAX2010

500MHz to 1100MHz Adjustable
RF Predistorter

4 _______________________________________________________________________________________

Note 1: Guaranteed by design and characterization.
Note 2: All limits reflect losses and characteristics of external components shown in the Typical Application Circuit, unless otherwise

noted.

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2010 EV kit, V

CCG

= V

CCP

= +4.75V to +5.25V, 50Ω environment, PIN= -20dBm, fIN= 500MHz to 1100MHz, V

GCS

= +1.0V,

V

GFS

= +5.0V, V

GBP

= +1.2V, V

PBIN

= V

PDCS1

= V

PDCS2

= 0V, V

PF_S1

= +5V, V

PBRAW

= V

PBEXP,TA

= -40°C to +85°C. Typical val-

ues are at f

IN

= 880MHz, V

CCG

= V

CCP

= +5V, TA= +25°C, unless otherwise noted.) (Notes 1, 2)

GAIN CONTROL SECTION

Nominal Gain

PARAMETER CONDITIONS MIN TYP MAX UNITS

Gain Variation Over Temperature TA = -40°C to +85°C-1.4dB

Gain Flatness Over a 100MHz band ±0.2 dB

Gain-Expansion Breakpoint
Maximum

Gain-Expansion Breakpoint
Minimum

Gain-Expansion Breakpoint
Variation Over Temperature

Gain-Expansion

Gain-Expansion Slope

Gain-Slope Variation Over
Temperature

Noise Figure 14.9 dB

Absolute Group Delay Interconnects de-embedded 1.12 ns

Group Delay Ripple Over a 100MHz band ±0.02 ns

Phase Ripple Over a 100MHz band, deviation from linear phase ±0.09 Degrees

Parasitic Phase Expansion PIN = -20dBm to +23dBm +3 Degrees

V

GCS

V

GCS

V

GBP

V

GBP

T

= -40°C to +85°C-0.5dB

A

V

GFS

V

GFS

V

GFS

V

GFS

P

IN

= 0V, V

GFS

= +5V, V

= +5V 23 dBm

= +0.5V -2.5 dBm

= +5V, PIN = -20dBm to +23dBm 5.3

= 0V, PIN = -20dBm to +23dBm 3.1

= +5V, PIN = +15dBm 0.43

= +0V, PIN = +15dBm 0.23

= +15dBm, TA = -40°C to +85°C -0.01 dB/dB

= +5V -24.3

= 0V -7.6

GFS

-14.9

dB

dB

dB/dB

MAX2010

500MHz to 1100MHz Adjustable

RF Predistorter

_______________________________________________________________________________________ 5

Typical Operating Characteristics

Phase Control Section

(MAX2010 EV kit, V

CCP

= +5.0V, PIN= -20dBm, V

PBIN

= 0V, V

PF_S1

= +5.0V, V

PDCS1

= V

PDCS2

= 0V, fIN= 880MHz, TA= +25°C

unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

6.6

6.5

6.4

6.3
TA = +85°C

6.2

6.1

6.0

5.9

SUPPLY CURRENT (mA)

5.8

5.7

5.6

4.75 4.954.85 5.05 5.15 5.25

TA = +25°C

TA = -40°C

SUPPLY VOLTAGE (V)

LARGE-SIGNAL INPUT RETURN LOSS

vs. FREQUENCY

0

0

MAX2010 toc01

10

20

30

INPUT RETURN LOSS (dB)

40

50

0.5 0.6 0.7

A = V
B = V
C = V
D = V

0

SMALL-SIGNAL INPUT RETURN LOSS

vs. FREQUENCY

FREQUENCY (GHz)

= V

PDCS1

PDCS2

= V

PDCS1

PDCS2

= V

PDCS1

PDCS2

= V

PDCS1

PDCS2

LARGE-SIGNAL OUTPUT RETURN LOSS

vs. FREQUENCY

D

= V
= 0V, V
= 5V, V
= V

B

0.9 1.0 1.1

0.8

= 0V

PF_S1

PF_S1

PF_S1

= 5V

PF_S1

C

= 5V
= 0V

A

0

MAX2010 toc02

10

20

30

OUTPUT RETURN LOSS (dB)

40

50

0.5 0.6 0.7

-4.0

SMALL-SIGNAL OUTPUT RETURN LOSS

A = V
B = V
C = V
D = V

vs. FREQUENCY

FREQUENCY (GHz)
= V
= V
= V
= V

PDCS2
PDCS2
PDCS2
PDCS2

= V
= 0V, V
= 5V, V
= V

PDCS1
PDCS1

PDCS1
PDCS1

SMALL-SIGNAL GAIN

vs. FREQUENCY

A

0.8

PF_S1

D

PF_S1

PF_S1
PF_S1

B

C

0.9 1.0 1.1

= 0V

= 5V
= 0V

= 5V

MAX2010 toc03

10

20

30

INPUT RETURN LOSS (dB)

40

50

0.5 0.6 0.7

PIN = +15dBm

= V

A = V

PDCS1

= V

B = V

PDCS1

= V

C = V

PDCS1

= V

D = V

PDCS1

-4.5

MAX2010 toc05

-5.0

-5.5

GAIN (dB)

-6.0

-6.5

-7.0

0.5 1.1

TA = -40°C

TA = +25°C

TA = +85°C

FREQUENCY (GHz)

1.00.90.80.70.6

B

D

0.8

FREQUENCY (GHz)

= V

PDCS2

PF_S1

= 0V, V

PDCS2
PDCS2
PDCS2

= 5V, V
= V

PF_S1

PF_S1

PF_S1

A

C

0.9 1.0 1.1

= 0V

= 5V
= 0V

= 5V

MAX2010 toc04

10

20

30

OUTPUT RETURN LOSS (dB)

40

50

0.5 0.6 0.7

PIN = +15dBm
A = V
B = V
C = V
D = V

PDCS1
PDCS1
PDCS1
PDCS1

FREQUENCY (GHz)

= V

= V

PDCS2

= V

= 0V, V

PDCS2

= V

= 5V, V

PDCS2

= V

= V

PDCS2

0.8

D

PF_S1

PF_S1

B

= 0V

PF_S1

PF_S1

= 5V

A

C

0.9 1.0 1.1

= 5V
= 0V

MAX2010 toc06

MAX2010

500MHz to 1100MHz Adjustable
RF Predistorter

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

Phase Control Section (continued)

(MAX2010 EV kit, V

CCP

= +5.0V, PIN= -20dBm, V

PBIN

= 0V, V

PF_S1

= +5.0V, V

PDCS1

= V

PDCS2

= 0V, fIN= 880MHz, TA= +25°C

unless otherwise noted.)

-4.0

-4.5

-5.0

-5.5

GAIN (dB)

-6.0

SMALL-SIGNAL GAIN

V

vs. FREQUENCY

= 4.75V, 5.0V, 5.25V

CCP

MAX2010 toc07

-4.0

-4.5

-5.0

-5.5

GAIN (dB)

-6.0

SMALL-SIGNAL GAIN

vs. COARSE SLOPE

V

= 1.5V

PF_S1

V

= 5V

PF_S1

V

PF_S1

= 0V

MAX2010 toc08

SMALL-SIGNAL GAIN

vs. COARSE SLOPE

-4.0

-4.5

-5.0

-5.5

GAIN (dB)

-6.0

TA = -40°C

= +25°C

T

A

= +85°C

T

A

MAX2010 toc09

-6.5

-7.0

0.5 1.1
FREQUENCY (GHz)

GROUP DELAY vs. FREQUENCY

1.50

1.45

1.40

1.35

DELAY (ns)

1.30

1.25

1.20

0.5 1.1

A = V

= V

PDCS1

= V

B = V

PDCS1

= V

C = V

PDCS1

= V

D = V

PDCS1

INTERCONNECTS DE-EMBEDDED

D

FREQUENCY (GHz)

= V

PDCS2

PF_S1

= 0V, V

PDCS2
PDCS2
PDCS2

= 5V, V
= V

PF_S1

PF_S1
PF_S1

= 0V

= 5V

C

= 5V
= 0V

-6.5

-7.0

1.00.90.80.70.6

PDCS1 = 0
PDCS2 = 0

PDCS1 = 5
PDCS2 = 0

COARSE SLOPE (V)

PDCS1 = 0
PDCS2 = 5

PDCS1 = 5
PDCS2 = 5

NOISE FIGURE vs. FREQUENCY

7.0

6.8

MAX2010 toc10

6.6

6.4

6.2

6.0

A

B

1.00.90.80.70.6

5.8

NOISE FIGURE (dB)

5.6

5.4

5.2

5.0

0.5 1.1

A = V
B = V
C = V
D = V

A

PDCS1
PDCS1
PDCS1
PDCS1

D

B

FREQUENCY (GHz)

= V

= V

PDCS2

= V

= 0V, V

PDCS2

= V

= 5V, V

PDCS2

= V

= V

PDCS2

PF_S1

PF_S1

= 0V

PF_S1

PF_S1

= 5V

= 5V
= 0V

C

1.00.90.80.70.6

-6.5

-7.0
PDCS1 = 0
PDCS2 = 0

6.00

5.95

MAX2010 toc11

5.90

5.85

5.80

SUPPLY CURRENT (mA)

5.75

5.70

PDCS1 = 5
PDCS2 = 0

COARSE SLOPE (V)

PDCS1 = 0
PDCS2 = 5

PDCS1 = 5
PDCS2 = 5

SUPPLY CURRENT vs. INPUT POWER

MAX2010 toc12

B

C

D = V
E = V

D

E

161284

20

= 1.5V

PBIN

= 3.0V

PBIN

A

024

PBIN
PBIN
PBIN

= 0V
= 0.5V
= 1.0V

INPUT POWER (dBm)
A = V
B = V
C = V