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MAX2057EVKIT

P1-P3P4-P6P7-P9P10-P12P13-P13
General Description
The MAX2057 general-purpose, high-performance vari-
able-gain amplifier (VGA) is designed to operate in the
1300MHz to 2700MHz frequency range*. This device
features 15.5dB of gain, 6dB of noise figure, and an out-
put 1dB compression point of 23.8dBm. The MAX2057
also provides an exceptionally high OIP3 level of
37dBm, which is maintained over the entire attenuation
range. In addition, the on-chip analog attenuators yield
infinite control and high attenuation accuracy over
selectable 21dB or 42dB control ranges. Each of these
features makes the MAX2057 an ideal VGA for
DCS/PCS, cdma2000™, W-CDMA, and PHS/PAS trans-
mitter and power amplifier AGC circuits.
The MAX2057 is pin compatible with the MAX2056
800MHz to 1000MHz VGA, making this family of ampli-
fiers ideal for applications where a common PC board
layout is used for both frequency bands.
The MAX2057 operates from a single +5V supply and is
available in a compact 36-pin thin QFN package (6mm
x 6mm x 0.8mm) with an exposed pad. Electrical per-
formance is guaranteed over the extended -40°C to
+85°C temperature range.
Applications
DCS 1800/PCS 1900 2G and 2.5G EDGE Base-
Station Transmitters and Power Amplifiers
cdmaOne™, cdma2000, Base-Station
Transmitters and Power Amplifiers
WCDMA, LTE, TD-SCDMA, and TD-LTE
Transmitters and Power Amplifiers
PHS/PAS 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
cdmaOne is a trademark of CDMA Development Group.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
Features
o 1300MHz to 2700MHz RF Frequency Range*
o 37dBm Constant OIP3 (Over All Gain Settings)
o 23.8dBm Output 1dB Compression Point
o 15.5dB Typical Gain at Maximum Gain Setting
o 0.5dB Gain Flatness Over 100MHz Bandwidth
o 6dB Noise Figure at Maximum Gain Setting (Using
1 Attenuator)
o Two Gain-Control Ranges: 21dB and 42dB
o Analog Gain Control
o Single +5V Supply Voltage
o Pin Compatible with MAX2056, 800MHz to
1000MHz RF VGA
o External Current-Setting Resistors Provide Option
for Operating VGA in Reduced-Power/Reduced-
Performance Mode
o Lead-Free Package Available
*
Note: Operation beyond this range is possible, but has not been
characterized.
MAX2057
1300MHz to 2700MHz Variable-Gain
Amplifier with Analog Gain Control
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-3510; Rev 1; 12/10
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX2057ETX+ -40°C to +85°C
36 Thin QFN-EP**
6mm x 6mm
MAX2057ETX+T -40°C to +85°C
36 Thin QFN-EP**
6mm x 6mm
**
EP = Exposed pad.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape-and-reel package.
Pin Configuration/Functional Diagram appear at end of data
sheet.
MAX2057
1300MHz to 2700MHz Variable-Gain
Amplifier with Analog Gain Control
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.
V
CC
to GND...........................................................-0.3V to +5.5V
V
CNTL
to GND (with V
CC
applied) .............................0V to 4.75V
Current into V
CNTL
pin (V
CC
grounded) .............................40mA
All Other Pins to GND.................................-0.3V to (V
CC
+ 0.3V)
RF Input Power (IN, IN_A, ATTN_OUT, OUT_A) ...........+20dBm
RF Input Power (AMP_IN)...............................................+12dBm
θ
JA
(natural convection)...................................................35°C/W
θ
JA
(1m/s airflow) .............................................................31°C/W
θ
JA
(2.5m/s airflow) ..........................................................29°C/W
θ
JC
(junction to exposed pad) .........................................10°C/W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +4.75V to +5.25V, no RF signals applied, all input and output ports terminated with 50Ω, T
A
= -40°C to +85°C, unless other-
wise noted. Typical values are at V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage 4.75 5 5.25 V
Supply Current R1 = 1.2k, R2 = 2k (Note 1) 180 230 mA
R
SET1
Current R1 = 1.2k (Note 1) 1 mA
R
SET2
Current R1 = 2k (Note 1) 0.6 mA
Gain-Control Voltage Range (Note 2) 1.0 4.5 V
Gain-Control Pin Input Resistance V
CNTL
= 1V to 4.5V 50 k
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Frequency Range (Note 3) 1300 2700 MHz
AC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit with one attenuator connected, V
CC
= +4.75V to +5.25V, T
A
= -40°C to +85°C, f
IN
= 1700MHz to
2500MHz, unless otherwise noted. Typical values are at V
CC
= +5.0V, R1 = 1.2kΩ, R2 = 2kΩ, P
OUT
= +5dBm, f
IN
= 2100MHz,
V
CNTL
= 1V, 50Ω system impedance, second attenuator is not connected, T
A
= +25°C, unless otherwise noted.) (Note 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
T
A
= +25°C, V
CC
= 5.0V, f
IN
= 2100MHz 13.5 15.5 17.5
T
A
= +25°C, V
CC
= 5.0V, f
IN
= 1560MHz 11.5 14.5 16.5
T
A
= +25°C, V
CC
= 5.0V, f
IN
= 1500MHz 11.5 14.3 16.5
Gain
T
A
= +25°C, V
CC
= 5.0V, f
IN
= 1450MHz 11.5 14 16.5
dB
V
CNTL
= 1V +0.9
V
CNTL
= 1.8V +0.41
V
CNTL
= 2.6V +0.09
T
A
= +25°C to -40°C
V
CNTL
= 3.5V -0.16
V
CNTL
= 1V -1
V
CNTL
= 1.8V -0.56
V
CNTL
= 2.6V -0.32
Maximum Gain Variation
T
A
= +25°C to +85°C
V
CNTL
= 3.5V +0.1
dB
MAX2057
1300MHz to 2700MHz Variable-Gain
Amplifier with Analog Gain Control
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit with one attenuator connected, V
CC
= +4.75V to +5.25V, T
A
= -40°C to +85°C, f
IN
= 1700MHz to
2500MHz, unless otherwise noted. Typical values are at V
CC
= +5.0V, R1 = 1.2kΩ, R2 = 2kΩ, P
OUT
= +5dBm, f
IN
= 2100MHz,
V
CNTL
= 1V, 50Ω system impedance, second attenuator is not connected, T
A
= +25°C, unless otherwise noted.) (Note 3)
Note 1: Total supply current reduces as R
1
and R
2
are increased.
Note 2: Operating outside this range for extended periods may affect device reliability. Limit pin input current to 40mA when V
CC
is not present.
Note 3: Operation outside this range is possible, but with degraded performance of some parameters.
Note 4: All limits include external component losses, unless otherwise noted.
Note 5: Noise figure increases by approximately 1dB for every 1dB of gain reduction.
Note 6: f
1
= 2100MHz, f
2
= 2101MHz, +5dBm/tone at OUT.
Note 7: Switching time is measured from 50% of the control signal to when the RF output settles to ±1dB.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Reverse Isolation 37 dB
Noise Figure (Note 5) 6 dB
Output 1dB Compression Point +23.8 dBm
Output 2nd-Order Intercept Point
From maximum gain to 15dB attenuation, measured at
f
1
+ f
2
(Note 6)
+64 dBm
Output 3rd-Order Intercept Point From maximum gain to 15dB attenuation (Note 5) +37 dBm
T
A
= +25°C to +85°C -0.83
Output 3rd-Order Intercept Point
Variation Over Temperature
T
A
= +25°C to -40°C -0.6
dB
2nd Harmonic From maximum gain to 15dB attenuation, P
OUT
= +5dBm -65 dBc
3rd Harmonic From maximum gain to 15dB attenuation, P
OUT
= +5dBm -83 dBc
One attenuator 17 20.7
f
IN
= 1700MHz to 2200MHz,
V
CNTL
= 1V to 4V
Two attenuators 34 42.4
One attenuator 17 22
RF Gain-Control Range
f
IN
= 1450MHz to 1560MHz,
V
CNTL
= 1V to 4V
Two attenuators 34 44
dB
RF Gain-Control Slope V
CNTL
= 1.8V to 3.5V -10 dB/V
Maximum RF Gain-Control Slope Maximum slope vs. gain-control voltage -15.2 dB/V
Gain Flatness Over
100MHz Bandwidth
Peak-to-peak for all settings 0.5 dB
Attenuator Switching Time 15dB attenuation change (Note 7) 500 ns
Attenuator Insertion Loss Second attenuator (IN_A, OUT_A) 2.2 dB
Input Return Loss Entire band, all gain settings 18 dB
Output Return Loss Entire band, all gain settings 15 dB
Group Delay Input/output 50 lines de-embedded 300 ps
Group Delay Flatness Over
100MHz Bandwidth
Peak to peak 20 ps
Group Delay Change vs. Gain
Control
V
CNTL
= 1V to 4V -70 ps
Insertion Phase Change vs. Gain
Control
V
CNTL
= 1V to 4V 50 degrees
P1-P3P4-P6P7-P9P10-P12P13-P13

MAX2057EVKIT

Mfr. #:
Buy MAX2057EVKIT
Manufacturer:
Maxim Integrated
Description:
Amplifier IC Development Tools Eval Kit MAX2057 (1300MHz to 2700MHz Variable-Gain Amplifier with AnalogGain Control)
Lifecycle:
New from this manufacturer.
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