MAXIM MAX2058 Technical data

General Description

The MAX2058 high-linearity digital-variable-gain ampli­fier (DVGA) is designed to provide 62dB of total gain
range and typical output IP3 and output P1dB levels of
+32.3dBm and +19dBm, respectively. The device is
ideal for a variety of applications, including RFID hand­held and portal readers, as well as single and multicar­rier 700MHz to 1200MHz GSM/EDGE, cdma2000

®

,
WCDMA, and iDEN®base stations. The MAX2058
yields a high level of component integration, which
includes two 5-bit, 31dB digital attenuators, a two-stage
driver amplifier, a loopback mixer, and a serial interface
to control the attenuators.

The MAX2058 is pin compatible with the MAX2059
1800MHz to 2200MHz DVGA, facilitating an easy
design-in for applications where a common PC board
layout is used for both frequency bands.

The MAX2058 is available in a 40-pin thin QFN pack­age with an exposed paddle. Electrical performance is
guaranteed over a -40°C to +85°C temperature range.

Applications

GSM 850/GSM 900 2G and 2.5G EDGE Base­Station Transmitters and Power Amplifiers

Cellular cdmaOne™, cdma2000, and Integrated
Digital Enhanced Network (iDEN) Base-Station
Transmitters and Power Amplifiers

WCDMA 850MHz and Other 3G Base-Station
Transmitters and Power Amplifiers

Transmitter Gain Control

Receiver Gain Control

Broadband Systems

Automatic Test Equipment

Digital and Spread-Spectrum Communication
Systems

Microwave Terrestrial Links

RFID Handheld and Portal Readers

Features

♦ +32.3dBm Typical Output IP3

♦ +19dBm Typical Output 1dB Compression Point

♦ 700MHz to 1200MHz RF Frequency Range

♦ 1800MHz to 2200MHz RF Frequency Range

(MAX2059)

♦ 10.5dB Typical Small-Signal Gain

♦ Includes Two Independent 31dB Attenuator

Stages, Yielding 62dB of Total Gain-Control
Range with 1dB Steps

♦ 3-Wire SPI™/MICROWIRE™-Compatible

♦ Integrated Loopback Mixer for Tx/Rx Self-

Diagnostics

♦ +5V Single-Supply Operation

♦ External Current-Setting Resistors for Scalable

Device Power

♦ Lead-Free Package Available

MAX2058

700MHz to 1200MHz High-Linearity,

SPI-Controlled DVGA with Integrated Loopback Mixer

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-0512; Rev 0; 6/06

**

EP = Exposed paddle.

+

Denotes lead-free package.

T

= Tape-and-reel.

Pin Configuration/Functional Diagram appears at end of data
sheet.

SPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
iDEN is a registered trademark of Motorola, Inc.
cdmaOne is a trademark of CDMA Development Group.

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.

PART TEMP RANGE PIN-PACKAGE

MAX2058ETL -40°C to +85°C

MAX2058ETL-T -40°C to +85°C

MAX2058ETL+ -40°C to +85°C

MAX2058ETL+T -40°C to +85°C

40 Thi n Q FN - E P **

(6mm x 6mm)

40 Thi n Q FN - E P **

( 6m m x 6m m )

40 Thi n Q FN - E P **

( 6m m x 6m m )

40 Thi n Q FN - E P **

( 6m m x 6m m )

PKG

CODE

T4066-3

T4066-3

T4066-3

T4066-3

MAX2058

700MHz to 1200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(MAX2058

Typical Application Circuit

, VCC= +4.75V to +5.25V, R1 = 1.2kΩ, R2 = 3.92kΩ, R3 = 2kΩ, TC= -40°C to +85°C. Typical

values are at V

CC

= +5.0V and TC= +25°C, unless otherwise noted.) (Note 1)

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

CC

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

RSET1, RSET2......................................................+1.2V to +4.0V

LBBIAS .......................................................(V

CC

- 1.5V) to +5.5V

LB_EN, DATA, CS, CLK .............................-0.3V to (V

CC

+ 0.3V)

ATTEN_INA, ATTEN_INB, ATTEN_OUTA, ATTEN_OUTB

Input Power .................................................................+24dBm

AMPIN, Differential LO Input Power ...............................+12dBm

Continuous Power Dissipation (T

A

= +70°C)

40-Pin TQFN (derated 26.3mW/°C above +70°C) ......2100mW

Operating Temperature Range (Note A) .............-40°C to +85°C

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

θ

JC

....................................................................................10°C/W

θ

JA

....................................................................................38°C/W

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

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

AC ELECTRICAL CHARACTERISTICS

(MAX2058

Typical Application Circuit

, VCC= +4.75V to +5.25V, digital attenuators set for maximum gain, 700MHz ≤ fRF≤ 1200MHz,

40MHz ≤ f

LO

≤ 100MHz, TC= -40°C to +85°C. Typical values are at VCC= 5.0V, PIN= 0dBm, fRF= 940MHz, PLO= -6dBm, fLO=

45MHz, f

LBOUT

= fRF- fLO, and TC= +25°C, unless otherwise noted.) (Note 1)

Note A: TCis the temperature on the exposed paddle of the package.

Supply Voltage V

Total Supply Current I

LOGIC INPUTS (DATA, CS, CLK, LB_EN)

Input High Voltage V

Input Low Voltage V

Input Current with Logic-High I

Input Current with Logic-Low I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

CC

IH

IL

Reference to VCC, VCCLB, VCCLOGIC,
VCCBIAS1, VCCBIAS2, VCCAMP

LB mixer disabled (LB_EN = 1) 134 156

LB mixer enabled (LB_EN = 0) 158 186

IH

IL

4.75 5.0 5.25 V

2.4 V

0.8 V

0.01 µA

0.01 µA

mA

RF Frequency (Note 2)

Small-Signal Gain A

Gain Variation vs. Temperature

Output Power P

Output Power Flatness PIN = 0dBm

Attenuation Range 62 dB

Output Third-Order Intercept
Point

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MAX2058 700 1200

MAX2059 1800 2200

fRF = 940MHz, TC = +25°C 8.4 10.5 12.8 dB

V

-0.014

32.3 dBm

OUT

OIP3

All attenuation
settings

PIN = 0dBm, fRF = 940MHz, TC = +25°C 8.4 10.5 12.8 dBm

Two tones: f
P

OUT1

= P

RF1

OUT2

TC = -40°C to +25°C

T

= +25°C to +85°C -0.021

C

800MHz to 900MHz 0.13

900MHz to 1000MHz -0.52

= 940MHz, f
= +5dBm

= 941MHz,

RF2

MHz

dB/°C

dB

MAX2058

700MHz to 1200MHz High-Linearity,

SPI-Controlled DVGA with Integrated Loopback Mixer

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2058

Typical Application Circuit

, VCC= +4.75V to +5.25V, digital attenuators set for maximum gain, 700MHz ≤ fRF≤ 1200MHz,

40MHz ≤ f

LO

≤ 100MHz, TC= -40°C to +85°C. Typical values are at VCC= 5.0V, PIN= 0dBm, fRF= 940MHz, PLO= -6dBm, fLO=

45MHz, f

LBOUT

= fRF- fLO, and TC= +25°C, unless otherwise noted.) (Note 1)

Output -1dB Compression Point
(Note 3)

RMS Error Vector Magnitude EVM P

Spurious Emissions in 30kHz
Bandwidth (Note 4)

Noise Figure NF 6.8 dB

Input Return Loss 50Ω source, minimum attenuation setting 18 dB

Output Return Loss 50Ω load, minimum attenuation setting 20 dB

5-BIT DIGITAL ATTENUATORS

Insertion Loss

Input Third-Order Intercept Point IIP3

Control Range 31 dB

Attenuation Step Size Variation
vs. Frequency

Attenuation Variation vs.
Temperature

Step Size 1dB

Relative Step Accuracy 800MHz to 1000MHz

Absolute Step Accuracy 800MHz to 1000MHz

Spurious Emissions in 300kHz
Bandwidth (Note 5)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OP

1dB

= +12dBm, EDGE modulation 0.5 %

OUT

200kHz offset -39.2

P

= +12dBm,

OUT

EDGE modulation

Attenuator measured separately Z
50Ω

Attenuator measured separately Z
50Ω, two tones: f
941MHz, P

800MHz to 900MHz ±0.08

900MHz to 1000MHz ±0.06

800MHz to 1000MHz,
T

= -40°C to +25°C

C

800MHz to 1000MHz,
T

= +25°C to +85°C

C

No RF input, attenuator A stepped from 0 to
2dB, 7dB to 9dB, 15dB to 17dB, 0 to 31dB,
31dB to 0dB, with attenuator B at 0dB;
attenuator B stepped from 0 to 2dB, 7dB to
9dB, 15dB to 17dB, 0 to 31dB, 31dB to
0dB, with attenuator A at 0dB

IN1

400kHz offset -73.5

600kHz offset -82.7

1.2MHz offset -85.7

= ZL =

S

= ZL =

S

RF2

=

= P

RF1

IN2

= 940MHz, f

= +5dBm

19 dBm

3.3 dB

44 dBm

±0.002

±0.003

-0.2

+0.4

-0.2

+0.5

-85 dBm

dBc

dB

dB/°C

dB

dB

Switching Speed

From chip select transitioning high to the
output settling to within 1dB of steady state
output

0.3 µs

MAX2058

700MHz to 1200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2058

Typical Application Circuit

, VCC= +4.75V to +5.25V, digital attenuators set for maximum gain, 700MHz ≤ fRF≤ 1200MHz,

40MHz ≤ f

LO

≤ 100MHz, TC= -40°C to +85°C. Typical values are at VCC= 5.0V, PIN= 0dBm, fRF= 940MHz, PLO= -6dBm, fLO=

45MHz, f

LBOUT

= fRF- fLO, and TC= +25°C, unless otherwise noted.) (Note 1)

Note 1: All limits include external component losses. Output measurements taken at RFOUT or LBOUT ports of the

Typical

Application Circuit

.

Note 2: Operating outside this range is possible, but with degraded performance of some parameters.
Note 3: Compression point characterized. It is advisable not to continuously operate the VGA RF input above +15dBm.
Note 4: Input RF source contribution to spurious emissions (Agilent ESG 4435B, PSA E4443A): 200kHz = -39.2dBc,

400kHz = -73.5dBc, 600kHz = -83.2dBc, 1.2MHz = -85.7dBc

Note 5: No SPI clock input applied.
Note 6: Guaranteed by design and characterization.

LOOPBACK MIXER

LO Frequency (Note 2) f

LO Input Power P

Output Power (Note 6) PIN = +5dBm, fRF = 940MHz, TC = +25°C -14.7 -12.7 -10.8 dBm

Gain Accuracy

Output Third-Order Intercept
Point (Note 6)

Output Noise Floor PIN = +5dBm -137 dBc/Hz

ON/OFF Switching Time

LBOUT to ATTEN_OUTB Isolation

ATTEN_OUTB to LBOUT Isolation Mixer disabled, PIN = 0dBm 50 dB

Output Return Loss

LO Port Return Loss 50Ω source 32 dB

SERIAL PERIPHERAL INTERFACE (SPI)

Maximum Clock Speed 38 MHz

Data to Clock Setup Time t

Data to Clock Hold Time t
Clock to CS Setup Time t

CS Positive Pulse Width t
CS Negative Pulse Width t

CLOCK Pulse Width t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

LO

LO

OIP3

CS

CH

ES

EW

EWN

CW

P

= +5dBm, T

IN

= -40°C to +25°C

Tw o tones: f
P

IN 1

LB_EN enable time 0.12

LB_EN disable time 0.12

Mixer enabled, attenuators A and B both set
to 31dB, P

Mixer enabled, 50Ω load 22

Mixer disabled, 50Ω load 23

R F1

= P

= + 2d Bm , TC = + 25°C

IN 2

= +5dBm

IN

800MHz to 900MHz ±1.7

C

900MHz to 1000MHz ±1.7

= 940M H z, f

= 940.2M H z,

R F2

40 100 MHz

-6 0 dBm

10.6 dBm

67 dB

1ns

9ns

4ns

18 ns

24 ns

13 ns

dB

µs

dB

MAX2058

700MHz to 1200MHz High-Linearity,

SPI-Controlled DVGA with Integrated Loopback Mixer

_______________________________________________________________________________________

5

Typical Operating Characteristics

(MAX2058

Typical Application Circuit

, VCC= +4.75V to +5.25V, digital attenuators set for maximum gain, 700MHz ≤ fRF≤ 1200MHz,

40MHz ≤ f

LO

≤ 100MHz, TC= -40°C to +85°C. Typical values are at VCC= 5.0V, PIN= 0dBm, fRF= 940MHz, fLO= 45MHz, f

LBOUT

=

fRF- fLO, and TC= +25°C, unless otherwise noted.)

GAIN vs. RF FREQUENCY

(MAXIMUM GAIN)

13

12

11

10

GAIN (dB)

TC = +5°C

9

TC = +25°C

8

7

6

700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

TC = -40°C

TC = +85°C

MAX2058 toc01

GAIN (dB)

ATTEN A ABS ACCURACY vs. RF FREQUENCY

1.0

0.5

MAX2058 toc04

GAIN vs. RF FREQUENCY

(MAXIMUM GAIN)

13

12

11

10

9

8

7

6

700 900800 1000 1100 1200

ATTEN A REL ACCURACY vs. RF FREQUENCY

1.0

0.5

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

RF FREQUENCY (MHz)

MAX2058 toc02

MAX2058 toc05

GAIN vs. RF FREQUENCY

ADJUSTING ATTEN A

15

5

-5

GAIN (dB)

-15

-25
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

GAIN vs. RF FREQUENCY

ADJUSTING ATTEN B

15

5

MAX2058 toc03

MAX2058 toc06

0

ERROR (dB)

-0.5

-1.0
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

ATTEN B ABS ACCURACY vs. RF FREQUENCY

1.0

0.5

0

ERROR (dB)

-0.5

-1.0
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

MAX2058 toc07

0

ERROR (dB)

-0.5

-1.0
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

ATTEN B REL ACCURACY vs. RF FREQUENCY

1.0

0.5

0

ERROR (dB)

-0.5

-1.0
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

MAX2058 toc08

-5

GAIN (dB)

-15

-25
700 800 900 1000 1100 1200

RF FREQUENCY (MHz)

OUTPUT IP3 vs. RF FREQUENCY

34

TC = +5°C

33

32

31

OUTPUT IP3 (dBm)

30

29

800 850 900 950 1000

TC = +25°C

RF FREQUENCY (MHz)

TC = -40°C

TC = +85°C

MAX2058 toc09