MAX2057：1300MHz to 2700MHz Variable-Gain Amplifier with Analog Gain Control

High-Performance RF VGA with 42dB of Linearly Controlled Dynamic Range and Constant OIP3 of 37dBm

The MAX2057 general-purpose, high-performance variable-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 output 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 transmitter and power amplifier AGC circuits. The MAX2057 is pin compatible with the MAX2056 800MHz to 1000MHz VGA, making this family of amplifiers 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 performance is guaranteed over the extended -40°C to +85°C temperature range.

Key Features

1300MHz to 2700MHz RF Frequency Range†
37dBm Constant OIP3 (Over All Gain Settings)
23.8dBm Output 1dB Compression Point
15.5dB Typical Gain at Maximum Gain Setting
0.5dB Gain Flatness Over 100MHz Bandwidth
6dB Noise Figure at Maximum Gain Setting (Using 1 Attenuator)
Two Gain-Control Ranges: 21dB and 42dB
Analog Gain Control
Single +5V Supply Voltage
Pin Compatible with MAX2056, 800MHz to 1000MHz RF VGA
External Current-Setting Resistors Provide Option for Operating VGA in Reduced-Power/Reduced-Performance Mode
Lead-Free Package Available

MAX2057: Typical Application Circuit

Applications/Uses

Automated Test Equipment (ATE)
Broadband Systems
cdmaOne™ and cdma2000® Base-Station Transmitters and Power Amplifiers
DCS 1800/PCS 1900 2G and 2.5G EDGE Base-Station Transmitters and Power Amplifiers
Digital and Spread-Spectrum Communication Systems
Microwave Terrestrial Links
PHS/PAS Base-Station Transmitters and Power Amplifiers
Receiver Gain Control
Transmitter Gain Control
Transmitters and Power Amplifiers
Transmitters and Power Amplifiers
WCDMA, LTE, TD-SCDMA, and TD-LTE Transmitters and Power Amplifiers

DataSheet

title	Download file
MAX2057 Data Sheet	MAX2057.pdf

Parametrics

Part Number	Gain Cntl.	Channels	RF Freq. (MHz)	RF Freq. (MHz)	Analog Attenuation Range	Gain (dB)	Noise Figure (dB)	OIP3 (dBm)	OIP2 (dBm)	HD2 (dBc)	HD3 (dBc)	V_CC (V)	I_SUPPLY (mA)	Footprint (mm x mm)	Package/Pins	Oper. Temp. (°C)	Budgetary Price
Part Number	Gain Cntl.	Channels	min	max	Analog Attenuation Range	max	Noise Figure (dB)	OIP3 (dBm)	OIP2 (dBm)	HD2 (dBc)	HD3 (dBc)	V_CC (V)	I_SUPPLY (mA)	Footprint (mm x mm)	Package/Pins	Oper. Temp. (°C)	See Notes
MAX2057	Analog	1	1300	2700	42	15.5	6	37	64	-65	-83	4.75 to 5.25	180	6.0 x 6.0	TQFN/36	-40 to +85	$6.40 @1k

Design kits & evaluation modules

MAX2057EVKIT

Quality and Environmental Data

MAX2057.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX2057ETX	No Longer Available	MAX2057ETX+	TQFN,;36 pin;37.2 mm²	-40°C to +85°C	No
MAX2057ETX+	Active		TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX2057ETX+T	Active		TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX2057ETX-T	No Longer Available	MAX2057ETX+T	QFN;36 pin	-40°C to +85°C	See data sheet

MAX2057.pdf MAX2057