Rainbow Electronics MAX2062 User Manual

19-5511; Rev 1; 11/10

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Analog/Digital VGA

General Description

The MAX2062 high-linearity, dual analog/digital variable­gain amplifier (VGA) operates in the 50MHz to 1000MHz
frequency range with two independent attenuators in
each signal path. Each digital attenuator is controlled
as a slave peripheral using either the SPIK-compatible
interface, or a 5-bit parallel bus with 31dB total adjust­ment range in 1dB steps. An added feature allows
rapid-fire gain selection among each of the four steps,
preprogrammed by the user through the SPI-compatible
interface. A separate 2-pin control lets the user quickly
access any one of four customized attenuation states
without reprogramming the SPI bus. Each analog attenu­ator is controlled using an external voltage or through the
SPI-compatible interface using an on-chip 8-bit DAC.

Since each of the stages has its own external RF input
and RF output, this component can be configured to
either optimize noise figure (NF) (amplifier configured
first), OIP3 (amplifier last), or a compromise of NF and
OIP3. The device’s performance features include 24dB
amplifier gain (amplifier only), 7.3dB NF at maximum
gain (includes attenuator insertion losses), and a high
OIP3 level of +41dBm. Each of these features makes
the device an ideal VGA for multipath receiver and trans­mitter applications.

In addition, the device operates from a single +5V
supply with full performance or a +3.3V supply for an
enhanced power-savings mode with lower performance.
The device is available in a compact 48-pin TQFN
package (7mm x 7mm) with an exposed pad. Electrical
performance is guaranteed over the extended tempera­ture range, from T

Applications

IF and RF Gain Stages

Temperature-Compensation Circuits

GSM/EDGE Base Stations

WCDMA, TD-SCDMA, and cdma2000
Stations

WiMAXK, LTE, and TD-LTE Base Stations and
Customer-Premise Equipment

Fixed Broadband Wireless Access

Wireless Local Loop

Military Systems

= -40NC to +85NC.

C

M

Base

Features

S Independently Controlled Dual Paths

S

50MHz to 1000MHz RF Frequency Range

S

Pin-Compatible Family Includes

MAX2063 (Digital-Only VGA)
MAX2064 (Analog-Only VGA)

19.4dB (typ) Maximum Gain

S

S

0.34dB Gain Flatness Over 100MHz Bandwidth

S

64dB Gain Range (33dB Analog Plus 31dB Digital)

S

56dB Path Isolation (at 200MHz)

S

Built-In 8-Bit DACs for Analog Attenuation Control

S

Supports Four Rapid-Fire Preprogrammed

Attenuator States
Quickly Access Any One of Four Customized
Attenuator States
Ideal for Fast-Attack, High-Level Blocker
Protection
Protects ADC Overdrive Condition

Excellent Linearity (Configured with Amp Last at

S

200MHz)
+41dBm OIP3
+56dBm OIP2
+19dBm Output 1dB Compression Point

7.3dB Typical Noise Figure (at 200MHz)

S

S

Fast, 25ns Digital Switching

S

Very Low Digital VGA Amplitude Overshoot/

Undershoot

S Single +5V Supply (or +3.3V Operation)

S

Amplifier Power-Down Mode for TDD Applications

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX2062ETM+
MAX2062ETM+T

+Denotes lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.

T = Tape and reel.

SPI is a trademark of Motorola, Inc.
cdma2000 is a registered trademark of Telecommunications

Industry Association.
WiMAX is a trademark of WiMAX Forum.

-40NC to +85NC

-40NC to +85NC

48 TQFN-EP*
48 TQFN-EP*

MAX2062

_______________________________________________________________ Maxim Integrated Products 1

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.

Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Analog/Digital VGA

ABSOLUTE MAXIMUM RATINGS

V

CC_AMP_1

STA_A_1, STA_A_2, STA_B_1, STA_B_2,

PD_1, PD_2, AMPSET .....................................-0.3V to +3.6V

A_VCTL_1, A_VCTL_2 .........................................-0.3V to +3.6V

DAT, CS, CLK, AA_SP, DA_SP ............................-0.3V to +3.6V

D0_1, D1_1, D2_1, D3_1, D4_1, D0_2, D1_2,

D2_2, D3_2, D4_2 ...........................................-0.3V to +3.6V

AMP_IN_1, AMP_IN_2 ......................................+0.95V to +1.2V

MAX2062

AMP_OUT_1, AMP_OUT_2, ................................-0.3V to +5.5V

D_ATT_IN_1, D_ATT_IN_2, D_ATT_OUT_1,

D_ATT_OUT_2 .....................................................0V to +3.6V

A_ATT_IN_1, A_ATT_IN_2, A_ATT_OUT_1,

A_ATT_OUT_2 ..................................................... 0V to +3.6V

Note 1: Based on junction temperature TJ = TC + (qJC x VCC x ICC). This formula can be used when the temperature of the

Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

Note 3: Junction temperature T

Note 4: T

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_AMP_2

exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details.
The junction temperature must not exceed +150NC.

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.

known. The junction temperature must not exceed +150NC.

is the temperature on the exposed pad of the package. TA is the ambient temperature of the device and PCB.

C

, V

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

CC_RG

= TA + (qJA x VCC x ICC). This formula can be used when the ambient temperature of the PCB is

J

REG_OUT .............................................................-0.3V to +3.6V

RF Input Power (D_ATT_IN_1, D_ATT_IN_2) ............... +20dBm

RF Input Power (A_ATT_IN_1, A_ATT_IN_2) .............. +20dBm

RF Input Power (AMP_IN_1, AMP_IN_2) ...................... +18dBm

q

(Notes 1, 2) ......................................................... +12.3NC/W

JC

q

(Notes 2, 3) ............................................................ +38NC/W

JA

Continuous Power Dissipation (Note 1) ..............................5.3W

Operating Case Temperature Range (Note 4) .. -40NC to +85NC

Junction Temperature .....................................................+150NC

Storage Temperature Range ............................ -65NC to +150NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

5.0V SUPPLY DC ELECTRICAL CHARACTERISTICS

(Typical Application Circuit, VCC = V

= -40NC to +85NC. Typical values are at V

T

C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V
Supply Current I
Power-Down Current I
Logic-Low Input Voltage V
Logic-High Input Voltage V
Input Logic Current I

CC_AMP_1

CC

DC

DCPD

IH, IIL

= V

CC_AMP_2

= 5.0V and TC = +25NC, unless otherwise noted.)

CC_

PD_1 = PD_2 = 1, VIH = 3.3V 5.3 8 mA

IL

IH

= V

CC_RG

3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS

(Typical Application Circuit, VCC = V

= -40NC to +85NC. Typical values are at V

T

C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V
Supply Current I
Power-Down Current I
Logic-Low Input Voltage V
Logic-High Input Voltage V

CC_AMP_1

DCPD

CC

DC

= V

CC_AMP_2

= 3.3V and TC = +25NC, unless otherwise noted.)

CC_

PD_1 = PD_2 = 1, VIH = 3.3V 4.5 8 mA

IL

IH

= V

= 3.135V to 3.465V, AMPSET = 1, PD_1 = PD_2 = 0,

CC_RG

= 4.75V to 5.25V, AMPSET = 0, PD_1 = PD_2 = 0,

4.75 5 5.25 V
148 210 mA

0.5 V

1.7 3.465 V

-1 +1

3.135 3.3 3.465 V
87 145 mA

0.5 V

1.7 V

FA

2 ______________________________________________________________________________________

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Analog/Digital VGA

RECOMMENDED AC OPERATING CONDITIONS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RF Frequency f

5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (Each Path, Unless Otherwise
Noted)

(Typical Application Circuit, VCC = V
ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz P f
are at maximum gain setting, V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Small-Signal Gain G

Gain vs. Temperature -0.01

Gain Flatness vs. Frequency

Noise Figure NF

Total Attenuation Range Analog and digital combined 64.1 dB

Output Second-Order Intercept
Point

Path Isolation

Output Third-Order Intercept
Point

Output -1dB Compression Point P

CC_AMP_1

= 5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)

CC

OIP2

OIP3

1dB

(Note 5) 50 1000 MHz

RF

= V

CC_AMP_2

f

= 50MHz 20.3

RF

= 100MHz 19.9

f

RF

= 200MHz 19.4

f

RF

f

= 350MHz, TC = +25NC

RF

f

= 450MHz 18.6

RF

= 750MHz 17.8

f

RF

= 900MHz 16.5

f

RF

From 100MHz to 200MHz 0.5

Any 100MHz frequency band from 200MHz
to 500MHz

= 50MHz 6.4

f

RF

= 100MHz 6.8

f

RF

= 200MHz 7.3

f

RF

= 350MHz 7.6

f

RF

= 450MHz 7.8

f

RF

= 750MHz 8.7

f

RF

= 900MHz 9.0

f

RF

P

OUT

RF input 1 amplified power measured at RF
output 2 relative to RF output 1, all unused
ports terminated to 50I

RF input 2 amplified signal measured at RF
output 1 relative to RF output 2, all unused
ports terminated to 50I

P

OUT

P

OUT

P

OUT

P

OUT

P

OUT

P

OUT

P

OUT

fRF = 350MHz, TC = +25NC (Note 7)

= V

= 0dBm/tone, Df = 1MHz, f1 + f

= 0dBm/tone, Df = 1MHz, fRF = 50MHz
= 0dBm/tone, Df = 1MHz, fRF = 100MHz
= 0dBm/tone, Df = 1MHz, fRF = 200MHz
= 0dBm/tone, Df = 1MHz, fRF = 350MHz
= 0dBm/tone, Df = 1MHz, fRF = 450MHz
= 0dBm/tone, Df = 1MHz, fRF = 750MHz
= 0dBm/tone, Df = 1MHz, fRF = 900MHz

= 4.75V to 5.25V, attenuators are set for maximum gain, RF

CC_RG

P 500MHz, TC = -40NC to +85NC. Typical values

RF

2

17.0 18.9 21.0

0.34

52.1 dBm

48.6

47.7

47.5

43.4

41.3

37.4

35.1

28.8

25.8

17 18.8 dBm

dB/NC

dBm

MAX2062

dB

dB

dB

dB

_______________________________________________________________________________________ 3

Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Analog/Digital VGA

5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (Each Path, Unless Otherwise
Noted) (continued)

(Typical Application Circuit, VCC = V
ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz P f
are at maximum gain setting, V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Second Harmonic P

MAX2062

Third Harmonic P
Group Delay Includes EV kit PCB delays 1.03 ns

Amplifier Power-Down Time

Amplifier Power-Up Time

Input Return Loss RL
Output Return Loss RL

DIGITAL ATTENUATOR (Each Path, Unless Otherwise Noted)

Insertion Loss 3.0 dB

Input Second-Order Intercept
Point

Input Third-Order Intercept Point

Attenuation Range
Step Size 1 dB
Relative Attenuation Accuracy 0.13 dB
Absolute Attenuation Accuracy 0.14 dB

Insertion Phase Step f

Amplitude Overshoot/Undershoot

Switching Speed

Input Return Loss
Output Return Loss

ANALOG ATTENUATOR (Each Path, Unless Otherwise Noted)

Insertion Loss 2.2 dB

Input Second-Order Intercept
Point

Input Third-Order Intercept Point

CC_AMP_1

= 5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)

CC

= V

CC_AMP_2

OUT

OUT

PD_1 or PD_2 from 0 to 1, amplifier DC
supply current settles to within 0.1mA

PD_1 or PD_2 from 1 to 0, amplifier DC
supply current settles to within 1%

50I source

IN

50I load

OUT

P

IN1

attenuation), Df = 1MHz, f

P

IN1

attenuation), Df = 1MHz

= 350MHz, TC = +25NC, VCC = 5.0V

f

RF

= 170MHz

RF

Between any two
states

RF settled to
within Q0.1dB

50I source
50I load

P

IN1

attenuation), Df = 1MHz, f

P

IN1

attenuation), Df = 1MHz

= V

= +3dBm -55.0 dBc
= +3dBm -72.7 dBc

= 0dBm, P

= 0dBm, P

= 0dBm, P

= 0dBm, P

= 4.75V to 5.25V, attenuators are set for maximum gain, RF

CC_RG

= 0dBm (minimum

IN2

= 0dBm (minimum

IN2

0dB to 16dB 0

0dB to 31dB 1.2
Elapsed time = 15ns 1.0
Elapsed time = 40ns 0.05
31dB to 0dB 25
0dB to 31dB 21

= 0dBm (minimum

IN2

= 0dBm (minimum

IN2

1

1

P 500MHz, TC = -40NC to +85NC. Typical values

RF

0.5

0.5

16.1 dB

30.8 dB

+ f

+ f

2

29.5 30.9 dB

2

53.6 dBm

41.5 dBm

22.0 dB

21.9 dB

61.9 dBm

37.0 dBm

Fs

Fs

Degrees0dB to 24dB 1.1

dB

ns

4 ______________________________________________________________________________________

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Analog/Digital VGA

5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (Each Path, Unless Otherwise
Noted) (continued)

(Typical Application Circuit, VCC = V
ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz P f
are at maximum gain setting, V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Attenuation Range
Gain Control Slope Analog control input -13.3 dB/V
Maximum Gain Control Slope Over analog control input range -35.2 dB/V
Insertion Phase Change Over analog control input range 17.6 Deg

Attenuator Response Time

Group Delay vs. Control Voltage

Analog Control Input Range 0.25 2.75 V
Analog Control Input Impedance 19.2
Input Return Loss
Output Return Loss

D/A CONVERTER

Number of Bits 8 Bits

Output Voltage

SERIAL PERIPHERAL INTERFACE (SPI)

Maximum Clock Speed 20 MHz
Data-to-Clock Setup Time t
Data-to-Clock Hold Time t
Clock-to-CS Setup Time

CS Positive Pulse Width
CS Setup Time

Clock Pulse Width t

CC_AMP_1

= 5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)

CC

CS

CH

t

t

EW

t

EWS

CW

= V

CC_AMP_2

= 350MHz, TC = +25NC, VCC = 5.0V

f

RF

RF settled to
within Q0.5dB

Over analog control input from 0.25V to

2.75V

50I source
50I load

DAC code = 00000000 0.35
DAC code = 11111111 2.7

ES

= V

= 4.75V to 5.25V, attenuators are set for maximum gain, RF

CC_RG

AA_SP = 0, V
from 2.75V to 0.25V

AA_SP = 1, DAC code
from 11111111 to
00000000, from CS rising
edge

AA_SP = 0, V
from 0.25V to 2.75V

AA_SP = 1, DAC code
from 00000000 to
11111111, from CS rising
edge

P 500MHz, TC = -40NC to +85NC. Typical values

RF

29.5 33.2 dB

A_VCTL__

500

A_VCTL__

500

ns

500

500

-0.34 ns

kI

16.1 dB

16.8 dB

2 ns

2.5 ns
3 ns
7 ns

3.5 ns
5 ns

MAX2062

V

_______________________________________________________________________________________ 5

Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Analog/Digital VGA

3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS (Each Path, Unless Otherwise Noted)

(Typical Application Circuit, VCC = V

CC_AMP_1

RF ports are driven from 50I sources, AMPSET = 1, PD_1 = PD_2 = 0, 100MHz P f
values are at maximum gain setting, V

CC

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Small-Signal Gain 18.8 dB

= V

CC_AMP_2

= V

= 3.135V to 3.465V, attenuators are set for maximum gain,

CC_RG

= 3.3V, PIN = -20dBm, fRF = 350MHz, and T

P 500MHz, T

RF

= +25NC, unless otherwise noted.) (Note 6)

C

= -40NC to +85NC. Typical

C

Output Third-Order Intercept Point OIP3 P

MAX2062

= 0dBm/tone 29.4 dBm

OUT

Noise Figure 7.8 dB
Total Attenuation Range 64.1 dB

RF input 1 amplified power measured at RF
output 2 relative to RF output 1, all unused

49.1

ports terminated to 50I

Path Isolation

RF input 2 amplified signal measured at RF
output 1 relative to RF output 2, all unused

48.0

ports terminated to 50I

Output -1dB Compression Point P

1dB

(Note 7) 13.4 dBm

Note 5: Operation outside this range is possible, but with degraded performance of some parameters. See the Typical Operating

Characteristics section.

Note 6: All limits include external component losses. Output measurements are performed at the RF output port of the Typical

Application Circuit.

Note 7: It is advisable not to continuously operate the RF input 1 or RF input 2 above +15dBm.

Typical Operating Characteristics

(Typical Application Circuit, VCC = V

CC_AMP_1

driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, P

170

SUPPLY CURRENT vs. V

160

TC = +25°C

150

SUPPLY CURRENT (mA)

140

130

4.750 5.250

TC = -40°C

TC = +85°C

VCC (V)

CC

5.1255.004.875

MAX2062 toc01

= V

CC_AMP_2

= V

= -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.)

IN

= 5.0V, attenuators are set for maximum gain, RF ports are

CC_RG

GAIN vs. RF FREQUENCY

22

21

20

19

18

GAIN (dB)

17

16

15

14

NOTCH DUE TO SELF-RESONANCE OF

BIAS COIL. SEE TABLE 7.

TC = -40°C

TC = +25°C

TC = +85°C

50 1050

RF FREQUENCY (MHz)

22

GAIN vs. RF FREQUENCY

21

MAX2062 toc02

20

19

18

GAIN (dB)

17

16

15

850650250 450

14

50 1050

VCC = 4.75V, 5.00V, 5.25V

850650250 450

RF FREQUENCY (MHz)

dB

MAX2062 toc03

6 ______________________________________________________________________________________

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Analog/Digital VGA

Typical Operating Characteristics (continued)

(Typical Application Circuit, VCC = V

CC_AMP_1

driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, P

= V

CC_AMP_2

= V

= -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.)

IN

= 5.0V, attenuators are set for maximum gain, RF ports are

CC_RG

MAX2062

GAIN OVER DIGITAL ATTENUATOR

SETTING vs. RF FREQUENCY

22

12

2

-8

GAIN OVER DIGITAL ATTENUATOR SETTING (dB)

-18
50 1050

RF FREQUENCY (MHz)

850650450250

INPUT MATCH OVER DIGITAL ATTENUATOR

SETTING vs. RF FREQUENCY

0

0dB

-10

-20

-30

-40

2dB

-50

INPUT MATCH OVER DIGITAL ATTENUATOR SETTING (dB)

0 1000

1dB

8dB, 16dB

31dB

4dB

800600400200

RF FREQUENCY (MHz)

REVERSE ISOLATION OVER DIGITAL

ATTENUATOR SETTING vs. RF FREQUENCY

30

40

DIGITAL ATTENUATOR 0dB

50

DIGITAL ATTENUATOR 31dB

60

ATTENUATOR SETTING (dB)

70

REVERSE ISOLATION OVER DIGITAL

80

50 1050

RF FREQUENCY (MHz)

850650450250

DIGITAL ATTENUATOR RELATIVE

ERROR vs. RF FREQUENCY

1.00

0.75

MAX2062 toc04

0.50

0.25

0

-0.25

RELATIVE ERROR (dB)

-0.50

-0.75

-1.00

ERROR FROM 23dB TO 24dB

50 1050

RF FREQUENCY (MHz)

OUTPUT MATCH OVER DIGITAL

ATTENUATOR SETTING vs. RF FREQUENCY

0

MAX2062 toc07

-10

-20
2dB

0dB, 1dB, 4dB, 8dB

-30

-40

-50

0 1000

OUTPUT MATCH OVER DIGITAL ATTENUATOR SETTING (dB)

RF FREQUENCY (MHz)

DIGITAL ATTENUATOR PHASE CHANGE

BETWEEN STATES vs. RF FREQUENCY

50

REFERENCED TO HIGH GAIN STATE

40

MAX2062 toc10

30

20

10

0

-10

BETWEEN STATES (DEGREES)

DIGITAL ATTENUATOR PHASE CHANGE

-20

POSITIVE PHASE = ELECTRICALLY SHORTER

-30

50 1050

RF FREQUENCY (MHz)

850650250 450

16dB, 31dB

800600400200

850650250 450

DIGITAL ATTENUATOR ABSOLUTE

ERROR vs. RF FREQUENCY

1.00

0.75

MAX2062 toc05

0.50

0.25

0

-0.25

ABSOLUTE ERROR (dB)

-0.50

-0.75

-1.00
50 1050

RF FREQUENCY (MHz)

CHANNEL-TO-CHANNEL ISOLATION

vs. RF FREQUENCY

20

BOTH DIGITAL ATTENUATORS = 31dB

30

MAX2062 toc08

40

50

60

70

CHANNEL-TO-CHANNEL ISOLATION (dB)

80

BOTH DIGITAL ATTENUATORS = 0dB

BOTH ANALOG ATTENUATORS = 0dB

50 1050

RF FREQUENCY (MHz)

GAIN OVER ANALOG ATTENUATOR

SETTING vs. RF FREQUENCY

22

17

MAX2062 toc11

12

7

2

-3

-8

-13

GAIN OVER ANALOG ATTENUATOR SETTING (dB)

-18
50 1050

DAC CODE 64

DAC CODE 32

DAC CODE 128

RF FREQUENCY (MHz)

MAX2062 toc06

850650250 450

MAX2062 toc09

850650450250

MAX2062 toc12

DAC CODE 0

DAC CODE 255

850650250 450

_______________________________________________________________________________________ 7

Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Analog/Digital VGA

Typical Operating Characteristics (continued)

(Typical Application Circuit, VCC = V

CC_AMP_1

driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, P

= V

CC_AMP_2

= V

= -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.)

IN

= 5.0V, attenuators are set for maximum gain, RF ports are

CC_RG

GAIN vs. ANALOG ATTENUATOR SETTING

22

MAX2062

17

12

7

2

1000MHz

GAIN (dB)

-3

-8

-13

-18
0 256

ANALOG ATTENUATOR SETTING (DAC CODE)

INPUT MATCH vs. ANALOG

ATTENUATOR SETTING

0

-5

-10

-15

INPUT MATCH (dB)

-20

-25

-30

50MHz

1000MHz

ANALOG ATTENUATOR SETTING (DAC CODE)

REVERSE ISOLATION OVER ANALOG

ATTENUATOR SETTING vs. RF FREQUENCY

30

40

50

60

70

ATTENUATOR SETTING (dB)

REVERSE ISOLATION OVER ANALOG

80

90

DAC CODE 0

DAC CODE 255

50 1050

RF FREQUENCY (MHz)

50MHz

200MHz

200MHz

350MHz

350MHz

850650450250

22419232 64 96 128 160

22419232 64 96 128 1600 256

GAIN vs. ANALOG ATTENUATOR SETTING

22

17

MAX2062 toc13

12

7

2

GAIN (dB)

-3

-8

-13

-18
0 256

ANALOG ATTENUATOR SETTING (DAC CODE)

0

MAX2062 toc16

-10

-20

-30

OUTPUT MATCH (dB)

-40

-50

ANALOG ATTENUATOR SETTING (DAC CODE)

vs. ANALOG ATTENUATOR SETTING

80

REFERENCED TO HIGH GAIN STATE

60

MAX2062 toc19

40

20

0

-20

S21 PHASE CHANGE (DEGREES)

-40

POSITIVE PHASE = ELECTRICALLY SHORTER

-60

ANALOG ATTENUATOR SETTING (DAC CODE)

RF = 350MHz

TC = -40°C, +25°C, +85°C

OUTPUT MATCH vs. ANALOG

ATTENUATOR SETTING

1000MHz

50MHz, 200MHz, 350MHz

S21 PHASE CHANGE

1000MHz

50MHz

350MHz

200MHz

22419232 64 96 128 160

22419232 64 96 128 1600 256

224 25619232 64 96 128 1600

GAIN vs. ANALOG ATTENUATOR SETTING

22

17

MAX2062 toc14

12

7

2

GAIN (dB)

-3

-8

-13

-18
0 256

ANALOG ATTENUATOR SETTING (DAC CODE)

CHANNEL-TO-CHANNEL ISOLATION

vs. RF FREQUENCY

10

BOTH ANALOG ATTENUATORS = CODE 255

20

MAX2062 toc17

30

40

50

60

BOTH ANALOG ATTENUATORS = CODE 0

70

CHANNEL-TO-CHANNEL ISOLATION (dB)

BOTH DIGITAL ATTENUATORS = 0dB

80

50 1050

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

11

10

MAX2062 toc20

NOISE FIGURE (dB)

TC = +25°C

9

8

7

6

5

4

50 1050

RF FREQUENCY (MHz)

RF = 350MHz

MAX2062 toc15

VCC = 4.75V, 5.00V, 5.25V

22419232 64 96 128 160

MAX2062 toc18

850650450250

TC = +85°C

MAX2062 toc21

TC = -40°C

850650450250

8 ______________________________________________________________________________________