Maxim MAX2269EUE, MAX2268EUE, MAX2267EUE, MAX2267E-D Datasheet

General Description

The MAX2267/MAX2268/MAX2269 power amplifiers are
optimized for IS-98-based CDMA and PDC cellular tele­phones operating in the Japanese cellular-frequency
band. When matched for CDMA operation, the ampli­fiers achieve 27dBm output power with 35% efficiency
(MAX2268), with margin over the adjacent and alternate
channel specification. At a +17dBm output—a very
common power level for CDMA phones—the MAX2268
still has 7% efficiency, yielding excellent overall talk
time. At the same power level, the MAX2267/MAX2269
have an unprecedented 12%/17% efficiency, while still
obtaining 28%/29% efficiency at maximum output
power.

The MAX2267/MAX2268/MAX2269 have internally refer­enced bias ports that are normally terminated with sim­ple resistors. The bias ports allow customization of
ACPR margin and gain. They can also be used to
“throttle back” bias current when generating low power
levels. The MAX2267/MAX2268/MAX2269 have excel­lent gain stability over temperature (±0.8dB), so over­design of driver stages and excess driver current are
dramatically reduced, further increasing the phone’s
talk time. The devices can be operated from +2.7V to
+4.5V while meeting all ACPR specifications over the
entire temperature range.

The devices are packaged in a 16-pin TSSOP with
exposed paddle (EP). For module or direct chip attach
applications, the MAX2267 is also available in die form.

Applications

Cellular-Band CDMA Phones

Cellular-Band PDC Phones

2-Way Pagers

Power-Amplifier Modules

Features

♦ Low Average CDMA Current Consumption in

Typical Urban Scenario

55mA (MAX2267)
90mA (MAX2268)
50mA (MAX2269)

♦ 0.5µA Shutdown Mode Eliminates External

Supply Switch

♦ ±0.8dB Gain Variation Over Temperature

♦ No External Reference or Logic Interface

Circuitry Needed

♦ Supply Current and ACPR Margin Dynamically

Adjustable

♦ +2.7V to +4.5V Single-Supply Operation

♦ 35% Efficiency at +2.7V Operation

MAX2267/MAX2268/MAX2269

+2.7V, Single-Supply, Cellular-Band

Linear Power Amplifiers

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

MAX2267/MAX2269

IN1 IN0

BIAS2H

V

CC

GND

NFP

OUT0

BIAS1L

OUT1

PWR

V

CC

SHDN

BIAS1H

V

CC

BIAS2L

OUT1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

BIAS

TSSOP-EP

19-1567; Rev 0; 1/00

EVALUATION KIT MANUAL

FOLLOWS DATA SHEET

Pin Configurations/

Functional Diagrams

Ordering Information

Selector Guide

*Contact factory for dice specifications.

Pin Configurations continued at end of data sheet.

16 TSSOP-EP

Dice*

16 TSSOP-EP

PIN-

PACKAGE

TEMP. RANGE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

MAX2268EUE

MAX2267E/D

MAX2267EUE

PART

16 TSSOP-EP-40°C to +85°C

MAX2269EUE

TSSOP-EP

5mm x 6.4mm

MAX2269 29 17 —

DEVICE

MAX2267

MAX2268 34

28 12

7 41

—

PDC AT

+29dBm

CDMA AT

+17dBm

CDMA AT

+27dBm

HIGH POWER-ADDED EFFICIENCY (%)

For free samples and the latest literature, visit www.maxim-ic.com or phone [phone].
For small orders, phone [phone].

MAX2267/MAX2268/MAX2269

+2.7V, Single-Supply, Cellular-Band
Linear Power Amplifiers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +4.5V no input signal applied, V

SHDN

= 2.0V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

CC

= +3.5V and TA= +25°C.)

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.

VCCto GND (no RF input) ........................................-0.3V to +5V

Logic Inputs to GND...................................-0.3V to (VCC+ 0.3V)

BIAS_ _ to GND..........................................-0.3V to (VCC+ 0.3V)

RF Input Power ...................................................+6dBm (20mW)

Logic Input Current...........................................................±10mA

Output VSWR with +6dBm Input ..........................................2.5:1

Total DC Power Dissipation (T

PADDLE

= +100°C)

16-Pin TSSOP-EP (derate 60mW/°C

above T

PADDLE

= +100°C)..............................................4W

θJA.................................................................................8°C/W

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

AC ELECTRICAL CHARACTERISTICS—MAX2267

(MAX2267 EV kit, VCC= V

PWR

= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, SHDN = VCC, matching networks tuned for

887MHz to 925MHz operation, 50Ω system, T

A

= +25°C, unless otherwise noted.)

MAX2267/MAX2269

MAX2268
SHDN = PWR = GND

Logic = V

CC

Logic = GND

CONDITIONS

34

100

I

CC

V

2.7 4.5

V

CC

Operating Voltage Range

Idle Current

V

0.8

Logic Threshold Low

V

2.0

Logic Threshold High

90

µA

0.5 10

I

CC

Shutdown Supply Current

µA

-1 5

Logic Input Current High

µA

-1 1

Logic Input Current Low

UNITSMIN TYP MAXSYMBOLPARAMETER

PWR = V

CC

PWR = GND

14 15.5

PWR = GND,
VCC= 2.8V

PWR = GND

PWR = VCC= 2.8V

PWR = V

CC

dB

24.5 26

G

P

Power Gain (Note 1)

PWR = VCCor GND

ACPR specification
met with
f

IN

= 887MHz to

925MHz

ACPR specification
met with
f

IN

= 887MHz to

925MHz

CONDITIONS

MHz

887 925

f

IN

Frequency Range (Notes 1, 2)

dBm

27

P

OUT

Output Power
(High-Power Mode) (Note 1)

24.5 25.5

dBm

16 17.5

P

OUT

Output Power
(Low-Power Mode) (Note 1)

UNITSMIN TYP MAXSYMBOLPARAMETER

mA

TA= +25°C

TA= T

MIN

to T

MAX

, relative to TA= +25°C dB±0.8

Gain Variation vs. Temperature
(Note 1)

20.5 23

23

PWR = GND

TA= T

MIN

to T

MAX

MAX2267/MAX2268/MAX2269

+2.7V, Single-Supply, Cellular-Band

Linear Power Amplifiers

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS—MAX2268

(MAX2268 EV kit, VCC= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, matching networks tuned for 887MHz to 925MHz opera-

tion, 50Ω system, T

A

= +25°C, unless otherwise noted.)

PARAMETER SYMBOL MIN TYP MAX UNITS

Adjacent-Channel Power Ratio
Limit (Notes 1, 2)

ACPR -44 -48 dBc

Alternate-Channel Power Ratio
Limit (Notes 1, 2)

ACPR -56 -57.5 dBc

Power-Mode Switching Time 550 ns

Turn-On Time (Notes 1, 4) 15µs

Maximum Input VSWR VSWR 2.3:1

Nonharmonic Spurious due
to Load Mismatch (Notes 1, 5)

-60 dBc

Noise Power (Note 6)

-137

-134

Harmonic Suppression 32 dBc

CONDITIONS

(Note 4)

VCC= 2.8V to 4.5V, offset = 885kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

VCC= 2.8V to 4.5V, offset = 1980kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

PWR = VCCor GND

fIN= 887MHz to 925MHz, PWR = GND or V

CC

PIN= +6dBm

Measured at 851MHz

PWR = GND, measured at 851MHz

(Note 7)

dBm/Hz

PARAMETER SYMBOL MIN TYP MAX UNITS

24.5 25.5

Output Power (Note 1) P

OUT

27

dBm

Gain Variation vs. Temperature
(Note 1)

±0.7 dB

Adjacent-Channel Power Ratio
(Notes 1, 2)

ACPR -44 -48 dBc

Alternate-Channel Power Ratio
(Notes 1, 2)

ACPR -56 -57.5 dBc

Frequency Range (Notes 1, 2) f

IN

887 925

MHz

24

CONDITIONS

ACPR specification
met with
f

IN

= 887MHz to

925MHz

TA= T

MIN

to T

MAX

, relative to TA= +25°C

VCC= 2.8V to 4.5V, offset = 885kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

VCC= 2.8V to 4.5V, offset = 1980kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

TA= T

MIN

to T

MAX

Power Gain (Note 1) G

P

25.5 27
dB

TA= +25°C

AC ELECTRICAL CHARACTERISTICS—MAX2267 (continued)

(MAX2267 EV kit, VCC= V

PWR

= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, SHDN = VCC, matching networks tuned for

887MHz to 925MHz operation, 50Ω system, T

A

= +25°C, unless otherwise noted.)

28PWR = VCC, P

OUT

= +27dBm

Power-Added Efficiency
(Note 3)

PAE

12

%

PWR = GND, P

OUT

= 17.5dBm

VCC= 3.5V

VCC= 2.8V

Power-Added Efficiency
(Note 3)

PAE

35

%

PINadjusted to give P

OUT

= 27dBm

Turn-On Time (Notes 1, 4) 15µs

Maximum Input VSWR VSWR 1.5:1f

IN

= 887MHz to 925MHz

PINadjusted for P

OUT

= 13.6dBm 5.5

MAX2267/MAX2268/MAX2269

+2.7V, Single-Supply, Cellular-Band
Linear Power Amplifiers

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS—MAX2268 (continued)

(MAX2268 EV kit, VCC= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, matching networks tuned for 887MHz to 925MHz opera-

tion, 50Ω system, T

A

= +25°C, unless otherwise noted.)

PARAMETER SYMBOL MIN TYP MAX UNITS

Nonharmonic Spurious Due
to Load Mismatch (Notes 1, 5)

-60 dBc

Noise Power (Note 6) -138 dBm/Hz

Harmonic Suppression 47 dBc

CONDITIONS

PIN= +6dBm

Measured at 851MHz

(Note 7)

AC ELECTRICAL CHARACTERISTICS—MAX2269

(MAX2269 EV kit, VCC= V

PWR

= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, SHDN = VCC, matching networks tuned for

887MHz to 925MHz operation, 50Ω system, T

A

= +25°C, unless otherwise noted.)

17PWR = GND, P

OUT

= 17dBm

PWR = VCC, P

OUT

= +27dBm

%

29

PAE

Power-Added Efficiency
(Note 3)

VCC= 2.8V to 4.5V, offset = 1980kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

dBc-56 -57.5ACPR

Alternate-Channel Power Ratio
Limit (Notes 1, 2)

VCC= 2.8V to 4.5V, offset = 885kHz,
30kHz BW, f

IN

= 887MHz to 925MHz

dBc-44 -48ACPR

Adjacent-Channel Power Ratio
Limit (Notes 1, 2)

PWR = GND,
V

CC

= 2.8V

13.5 15

PWR = GND

PWR = VCC= 2.8V

PWR = V

CC

dB

24.5 26

G

P

Power Gain (Note 1)

PWR = V

CC

PWR = VCCor GND

ACPR specification
met with
f

IN

= 887MHz to

925MHz

ACPR specification
met with
f

IN

= 887MHz to

925MHz

CONDITIONS

MHz

887 925

f

IN

Frequency Range (Notes 1, 2)

dBm

27

P

OUT

Output Power
(High-Power Mode) (Note 1)

24.5 25.5

dBm

15.5 17

P

OUT

Output Power
(Low-Power Mode) (Note 1)

UNITSMIN TYP MAXSYMBOLPARAMETER

TA= +25°C

TA= T

MIN

to T

MAX

, relative to TA= +25°C dB±0.8

Gain Variation vs. Temperature
(Note 1)

PWR = GND

TA= T

MIN

to T

MAX

23.5 26

23

MAX2267/MAX2268/MAX2269

+2.7V, Single-Supply, Cellular-Band

Linear Power Amplifiers

_______________________________________________________________________________________ 5

Note 1: Minimum and maximum values are guaranteed by design and characterization, not production tested.
Note 2: P

MAX

is met over this frequency range at the ACPR limit with a single matching network. For optimum performance at other
frequencies, the output matching network must be properly designed. See the Applications Information section. Operation
between 750MHz and 1000MHz is possible but has not been characterized.

Note 3: PAE is specified into a 50Ω load, while meeting the ACPR requirement.
Note 4: Time from logic transition until P

OUT

is within 1dB of its final mean power.

Note 5: Murata isolator as load with 20:1 VSWR any phase angle after isolator.
Note 6: Noise power can be improved by using the circuit in Figures 1 and 2.
Note 7: Harmonics measured on the evaluation kit, which provides some harmonic attenuation in addition to the rejection provided

by the IC. The combined suppression is specified.

AC ELECTRICAL CHARACTERISTICS—MAX2269 (continued)

(MAX2269 EV kit, VCC= V

PWR

= V

SHDN

= +3.5V, fIN= 906MHz, CDMA modulation, SHDN = VCC, matching networks tuned for

887MHz to 925MHz operation, 50Ω system, T

A

= +25°C, unless otherwise noted.)

PARAMETER SYMBOL MIN TYP MAX UNITS

Power-Mode Switching Time 550 ns

Turn-On Time (Notes 1, 4) 15µs

Maximum Input VSWR VSWR 2.4:1

Nonharmonic Spurious due to
Load Mismatch (Notes 1, 5)

-60 dBc

Noise Power (Note 6)

-137

-130

Harmonic Suppression 32 dBc

CONDITIONS

(Note 4)

PWR = VCCor GND

fIN= 887MHz to 925MHz, PWR = GND or V

CC

PIN= +6dBm

Measured at 851MHz

PWR = GND, measured at 851MHz

(Note 7)

dBm/Hz

0

20

40

60

80

100

120

140

2.5 3.53.0 4.0 4.5 5.0 5.5

MAX2267

SHUTDOWN CURRENT vs. SUPPLY VOLTAGE

MAX2267/9-01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (nA)

TA = +85°C

TA = -40°C

TA = +25°C

PWR = GND
SHDN = GND
NO INPUT DRIVE

20

22

26

24

28

30

2.5 3.53.0 4.0 4.5 5.0

MAX2267

GAIN vs. SUPPLY VOLTAGE

MAX2267/9-02

SUPPLY VOLTAGE (V)

GAIN (dB)

PWR = V

CC

TA = -40°C

TA = +85°C

TA = +25°C

18

20

24

22

26

28

2.5 4.03.0

3.5

4.5 5.0

MAX2267

GAIN vs. SUPPLY VOLTAGE

MAX2267/9-03

SUPPLY VOLTAGE (V)

GAIN (dB)

PWR = GND

TA = -40°C

TA = +85°C

TA = +25°C

Typical Operating Characteristics

(MAX2267/MAX2268/MAX2269 EV kits, VCC= +3.5V, SHDN = VCC, CDMA modulation, TA= +25°C, unless otherwise noted.)