Rainbow Electronics MAX2022 User Manual

General Description

The MAX2022 low-noise, high-linearity, direct upcon­version quadrature modulator is designed for single
and multicarrier 1800MHz to 2200MHz UMTS/WCDMA,
cdma2000®, and DCS/PCS base-station applications.
Direct upconversion architectures are advantageous
since they significantly reduce transmitter cost, part
count, and power consumption as compared to tradi­tional IF-based double upconversion systems.

In addition to offering excellent linearity and noise perfor­mance, the MAX2022 also yields a high level of compo­nent integration. This device includes two matched
passive mixers for modulating in-phase and quadrature
signals, three LO mixer amplifier drivers, and an LO
quadrature splitter. On-chip baluns are also integrated to
allow for single-ended RF and LO connections. As an
added feature, the baseband inputs have been matched
to allow for direct interfacing to the transmit DAC, there­by eliminating the need for costly I/Q buffer amplifiers.

The MAX2022 operates from a single +5V supply. It is
available in a compact 36-pin thin QFN package (6mm
x 6mm) with an exposed paddle. Electrical perfor­mance is guaranteed over the extended -40°C to
+85°C temperature range.

Applications

Single and Multicarrier WCDMA/UMTS Base
Stations

Single and Multicarrier cdmaOne™ and cdma2000
Base Stations

Single and Multicarrier DCS 1800/PCS 1900 EDGE
Base Stations

PHS/PAS Base Stations

Predistortion Transmitters

Fixed Broadband Wireless Access

Wireless Local Loop

Private Mobile Radio

Military Systems

Microwave Links

Digital and Spread-Spectrum Communication
Systems

Features

♦ 1500MHz to 2500MHz RF Frequency Range
♦ Meets Four-Carrier WCDMA 65dBc ACLR
♦ +23.3dBm Typical OIP3
♦ +51.5dBm Typical OIP2
♦ 45.7dBc Typical Sideband Suppression
♦ -40dBm Typical LO Leakage
♦ -173.2dBm/Hz Typical Output Noise, Eliminating

the Need for an RF Output Filter

♦ Broadband Baseband Input
♦ DC-Coupled Input Provides for Direct Launch

DAC Interface, Eliminating the Need for Costly I/Q
Buffer Amplifiers

MAX2022

High-Dynamic-Range, Direct Upconversion

1500MHz to 2500MHz Quadrature Modulator

________________________________________________________________ Maxim Integrated Products 1

RF OUTPUT POWER PER CARRIER (dBm)

ACLR AND ALT CLR (dBc)

-10-20-30-40

-78

-76

-74

-72

-70

-68

-66

-64

-62

-60

-80

NOISE FLOOR (dBm/Hz)

-165

-155

-145

-135

-125

-175

-50 0

4C ADJ

4C ALT

2C ADJ 1C ADJ

2C ALT

1C ALT

4C

2C

1C

NOISE FLOOR

WCDMA, ACLR, ALTCLR and Noise vs. RF

Output Power at 2140MHz for Single,

Two, and Four Carriers

Ordering Information

19-3572; Rev 0; 4/05

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.

EVALUATION KIT AVAILABLE

PART

TEMP RANGE

PIN-PACKAGE

PKG

CODE

MAX2022ETX

T3666-2

MAX2022ETX-T

T3666-2

MAX2022ETX+D

T3666-2

MAX2022ETX+TD

T3666-2

cdma2000 is a registered trademark of Telecommunications
Industry Association.

cdmaOne is a trademark of CDMA Development Group.

*EP = Exposed paddle. + = Lead free. D = Dry pack.

-T = Tape-and-reel package.

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

36 Thin QFN-EP*

(6mm x 6mm)

MAX2022

High-Dynamic-Range, Direct Upconversion
1500MHz to 2500MHz Quadrature Modulator

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

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

COMP .............................................................................0 to V

CC

BBIP, BBIN, BBQP, BBQN to GND ............-2.5V to (VCC+ 0.3V)

LO, RFOUT to GND Maximum Current ...............................50mA

Baseband Differential I/Q Input Power (Note A) ............+20dBm

LO Input Power...............................................................+10dBm

RBIASLO1 Maximum Current .............................................10mA

RBIASLO2 Maximum Current .............................................10mA

RBIASLO3 Maximum Current .............................................10mA

θJA(without air flow) ..........................................…………34°C/W

θ

JA

(2.5m/s air flow) .........................................................28°C/W

θ

JC

(junction to exposed paddle) ...................................8.5°C/W

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

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

Lead Temperature (soldering 10s, non-lead free)...........+245°C

Lead Temperature (soldering 10s, lead free) ..................+260°C

DC ELECTRICAL CHARACTERISTICS

(MAX2022 Typical Application Circuit, VCC= +4.75V to +5.25V, GND = 0V, I/Q inputs terminated into 100Ω differential, LO input ter­minated into 50Ω, RF output terminated into 50Ω, R1 = 432Ω, R2 = 562Ω, R3 = 301Ω, T

C

= -40°C to +85°C, unless otherwise noted.

Typical values are at V

CC

= +5V, TC= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage V

CC

V

Total Supply Current I

TOTAL

Pins 3, 13, 15, 31, 33 all connected to V

CC

342 mA

Total Power Dissipation

mW

Note A: Maximum reliable continuous power applied to the baseband differential port is +12dBm from an external 100Ω source.

AC ELECTRICAL CHARACTERISTICS

(MAX2022 Typical Application Circuit, VCC= +4.75V to +5.25V, GND = 0V, I/Q differential inputs driven from a 100Ω DC-coupled
source, 0V common-mode input, P

LO

= 0dBm, 1900MHz ≤ fLO≤ 2200MHz, 50Ω LO and RF system impedance, R1 = 432Ω, R2 =

562Ω, R3 = 301Ω, T

C

= -40°C to +85°C. Typical values are at VCC= +5V, V

BBI

= 109mV

P-P

differential, V

BBQ

= 109mV

P-P

differential,

f

IQ

= 1MHz, TC= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

BASEBAND INPUT

Baseband Input Differential
Impedance

f

IQ

= 1MHz 43 Ω

BB Common-Mode Input Voltage
Range

0

V

Output Power TC = +25°C -24

dBm

RF OUTPUTS (fLO = 1960MHz)

Output IP3

V

BBI

, V

BBQ

= 547mV

P-P

differential per tone

into 50Ω,
f

BB1

= 1.8MHz,

f

BB2

= 1.9MHz

21.8

dBm

Output IP2

V

BBI

, V

BBQ

= 547mV

P-P

differential per tone

into 50Ω,
f

BB1

= 1.8MHz,

f

BB2

= 1.9MHz

48.9

dBm

Output Power

dBm

4.75 5.00 5.25

292

1460 1796

-2.5

-20.5

+1.5

MAX2022

High-Dynamic-Range, Direct Upconversion

1500MHz to 2500MHz Quadrature Modulator

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2022 Typical Application Circuit, VCC= +4.75V to +5.25V, GND = 0V, I/Q differential inputs driven from a 100Ω DC-coupled
source, 0V common-mode input, P

LO

= 0dBm, 1900MHz ≤ fLO≤ 2200MHz, 50Ω LO and RF system impedance, R1 = 432Ω, R2 =

562Ω, R3 = 301Ω, T

C

= -40°C to +85°C. Typical values are at VCC= +5V, V

BBI

= 109mV

P-P

differential, V

BBQ

= 109mV

P-P

differential,

f

IQ

= 1MHz, TC= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

CONDITIONS

TYP

UNITS

Output Power Variation Over
Temperature

T

C

= -40°C to +85°C

dB/°C

Output-Power Flatness

f

LO

= 1960MHz, sweep fBB,

P

RF

flatness for fBB from 1MHz to 50MHz

0.6 dB

ACLR (1st Adjacent Channel
5MHz Offset)

Single-carrier WCDMA (Note 2),
RFOUT = -16dBm

70 dBc

LO Leakage

No external calibration, with each baseband
input terminated in 50Ω

dBm

Sideband Suppression No external calibration 47.3 dBc

Output Return Loss 15.3 dB

Output Noise Density

f

meas

= 2060MHz, with each baseband

input terminated in 50Ω

dBm/Hz

LO Input Return Loss 10.1 dB

RF OUTPUTS (fLO = 2140MHz)

Output IP3

V

BBI

, V

BBQ

= 547mV

P-P

differential per tone

into 50Ω,
f

BB1

= 1.8MHz,

f

BB2

= 1.9MHz

23.3

dBm

Output IP2

V

BBI

, V

BBQ

= 547mV

P-P

differential per tone

into 50Ω,
f

BB1

= 1.8MHz,

f

BB2

= 1.9MHZ

51.5

dBm

Output Power

dBm

Output Power Variation Over
Temperature

T

C

= -40°C to +85°C

dB/°C

Output-Power Flatness

f

LO

= 2140MHz,

sweep f

BB

,

P

RF

flatness for fBB from 1MHz to 50MHz

0.32 dB

ACLR (1st Adjacent Channel
5MHz Offset)

Single-carrier WCDMA (Note 2),
RFOUT = -16dBm, f

LO

= 2GHz

70 dBc

LO Leakage

No external calibration, with each baseband
input terminated in 50Ω

dBm

Sideband Suppression No external calibration 45.7 dBc

Output Return Loss 13.5 dB

Output Noise Density

f

meas

= 2240MHz, with each baseband

input terminated in 50Ω

dBm/Hz

LO Input Return Loss 18.1 dB

Note 1: TCis the temperature on the exposed paddle.
Note 2: Single-carrier WCDMA peak-to-average ratio of 10.5dB for 0.1% complimentary cumulative distribution function.

SYMBOL

MIN

-0.004

-46.7

-173.4

-20.8

-0.005

-40.4

-173.2

MAX

MAX2022

High-Dynamic-Range, Direct Upconversion
1500MHz to 2500MHz Quadrature Modulator

4 _______________________________________________________________________________________

Typical Operating Characteristics

(MAX2022 Typical Application Circuit, 50Ω LO input, R1 = 432Ω, R2 = 562Ω, R3 = 301Ω, VCC= +5V, PLO= 0dBm, V

IFI

= V

IFQ

=

109mV

P-P

differential, fIQ= 1MHz, I/Q differential inputs driven from a 100Ω DC-coupled source, common-mode input from 0V, TC=

+25°C, unless otherwise noted.)

ACLR vs. OUTPUT POWER

MAX2022 toc01

OUTPUT POWER (dBm)

ACLR (dB)

-10-20-30-40 0

-78

-76

-74

-72

-70

-68

-66

-64

-62

-60

-80

ADJACENT CHANNEL

ALTERNATE CHANNEL

SINGLE CARRIER

ACLR vs. OUTPUT POWER

MAX2022 toc02

OUTPUT POWER (dBm)

ACLR (dB)

-10-20-30-40 0

-78

-76

-74

-72

-70

-68

-66

-64

-62

-60

-80

ADJACENT CHANNEL

ALTERNATE CHANNEL

TWO CARRIER

ACLR vs. OUTPUT POWER

MAX2022 toc03

OUTPUT POWER (dBm)

ACLR (dB)

-20-30-40-50 -10

-78

-76

-74

-72

-70

-68

-66

-64

-62

-60

-80

ADJACENT CHANNEL

ALTERNATE CHANNEL

FOUR CARRIER

OUTPUT POWER vs. LO FREQUENCY

MAX2022 toc04

LO FREQUENCY (GHz)

OUTPUT POWER (dBm)

2.32.11.91.7

-7

-6

-5

-4

-3

-2

-8

1.5 2.5

VI = VQ = 0.611V

P-P

DIFFERENTIAL

PLO = -3dBm, 0dBm, +3dBm

OUTPUT POWER vs. LO FREQUENCY

MAX2022 toc05

LO FREQUENCY (GHz)

OUTPUT POWER (dBm)

2.32.11.91.7

-7

-6

-5

-4

-3

-2

-8

1.5 2.5

VI = VQ = 0.611V

P-P

DIFFERENTIAL

TC = +85°C

TC = +25°C

TC = -40°C

OUTPUT POWER vs. LO FREQUENCY

MAX2022 toc06

LO FREQUENCY (GHz)

OUTPUT POWER (dBm)

2.32.11.91.7

-7

-6

-5

-4

-3

-2

-8

1.5 2.5

VI = VQ = 0.611V

P-P

DIFFERENTIAL

VCC = 4.75V, 5.0V, 5.25V

LO LEAKAGE vs. LO FREQUENCY

MAX2022 toc07

LO FREQUENCY (GHz)

LO LEAKAGE (dBm)

2.32.11.91.7

-70

-50

-30

-10

-90

1.5 2.5

BASEBAND INPUTS TERMINATED IN 50

Ω

PLO = -3dBm, +3dBm

PLO = 0dBm

LO LEAKAGE vs. LO FREQUENCY

MAX2022 toc08

LO FREQUENCY (GHz)

LO LEAKAGE (dBm)

2.32.11.91.7

-70

-50

-30

-10

-90

1.5 2.5

BASEBAND INPUTS TERMINATED IN 50

Ω

TC = -40°C, +85°C

TC = +25°C

LO LEAKAGE vs. LO FREQUENCY

MAX2022 toc09

LO FREQUENCY (GHz)

LO LEAKAGE (dBm)

2.32.11.91.7

-70

-50

-30

-10

-90

1.5 2.5

BASEBAND INPUTS TERMINATED IN 50

Ω

VCC = 4.75V, 5.0V

VCC = 5.25V

MAX2022

High-Dynamic-Range, Direct Upconversion

1500MHz to 2500MHz Quadrature Modulator

_______________________________________________________________________________________ 5

IMAGE REJECTION (dB)

10

20

30

40

50

60

0

IMAGE REJECTION vs. LO FREQUENCY

MAX2022 toc10

LO FREQUENCY (GHz)

2.32.11.91.71.5 2.5

fBB = 1MHz, VI = VQ = 112mV

P-P

TC = -40°C, +25°C, +85°C

IMAGE REJECTION (dB)

10

20

30

40

50

60

0

IMAGE REJECTION vs. LO FREQUENCY

MAX2022 toc11

LO FREQUENCY (GHz)

2.32.11.91.71.5 2.5

fBB = 1MHz, VI = VQ = 112mV

P-P

PLO = 0dBm

PLO = +3dBm

PLO = -3dBm

IMAGE REJECTION (dB)

10

20

30

40

50

60

0

IMAGE REJECTION vs. LO FREQUENCY

MAX2022 toc12

LO FREQUENCY (GHz)

2.32.11.91.71.5 2.5

fBB = 1MHz, VI = VQ = 112mV

P-P

VCC = 4.75, 5.0V, 5.25V

Typical Operating Characteristics (continued)

(MAX2022 Typical Application Circuit, 50Ω LO input, R1 = 432Ω, R2 = 562Ω, R3 = 301Ω, VCC= +5V, PLO= 0dBm, V

IFI

= V

IFQ

=

109mV

P-P

differential, fIQ= 1MHz, I/Q differential inputs driven from a 100Ω DC-coupled source, common-mode input from 0V, TC=

+25°C, unless otherwise noted.)

OUTPUT NOISE vs. OUTPUT POWER

AMX2022 toc13

OUTPUT POWER (dBm)

OUTPUT NOISE (dBm/Hz)

50-10 -5-15-20

-175

-170

-165

-160

-155

-150

-180

-25 10

PLO = 0dBm, fLO = 1960MHz

TC = +85°C

TC = -40°C

TC = +25°C

OUTPUT NOISE vs. OUTPUT POWER

AMX2022 toc14

OUTPUT POWER (dBm)

OUTPUT NOISE (dBm/Hz)

50-10 -5-15-20

-176

-172

-168

-164

-160

-156

-180

-25 10

PLO = 0dBm, fLO = 2140MHz

TC = -40°C

TC = +85°C

TC = +25°C

IF FLATNESS

vs. BASEBAND FREQUENCY

MAX2022 toc15

BASEBAND FREQUENCY (MHz)

IF POWER (dBm)

80604020

-23

-22

-21

-20

-19

-18

-17

-16

-15

-14

-24
0 100

fLO = 1960MHz, PBB = -12dBm/PORT INTO 50

Ω

fLO - f

RF

fLO + f

RF

IF FLATNESS

vs. BASEBAND FREQUENCY

MAX2022 toc16

BASEBAND FREQUENCY (MHz)

IF POWER (dBm)

80604020

-23

-22

-21

-20

-19

-18

-17

-16

-15

-14

-24
0 100

fLO = 2140MHz, PBB = -12dBm/PORT INTO 50Ω

fLO - f

RF

fLO + f

RF

BASEBAND DIFFERENTIAL INPUT RESISTANCE

vs. BASEBAND FREQUENCY

BASEBAND DIFFERENTIAL INPUT RESISTANCE (Ω)

41.5

42.0

42.5

43.0

43.5

44.0

44.5

45.0

41.0

MAX2022 toc17

BASEBAND FREQUENCY (MHz)

6040 80200100

fLO = 2GHz, PLO = 0dBm

VCC = 5.0V

VCC = 4.75V

VCC = 5.25V

BASEBAND DIFFERENTIAL INPUT RESISTANCE

vs. BASEBAND FREQUENCY

BASEBAND DIFFERENTIAL INPUT RESISTANCE (Ω)

43.0

43.5

44.0

44.5

42.5

MAX2022 toc18

BASEBAND FREQUENCY (MHz)

6040 80200100

fLO = 2GHz, VCC = 5.0V

PLO = -3dBm

PLO = +3dBm

PLO = 0dBm