MAX2056：800MHz to 1000MHz Variable-Gain Amplifier with Analog Gain Control

High-Performance RF VGA with 44dB of Linearly Controlled Dynamic Range and Constant OIP3 of 39dBm

The MAX2056 general-purpose, high-performance variable-gain amplifier (VGA) is designed to operate in the 800MHz to 1000MHz frequency range†. This device features 15.5dB of gain, 4.5dB of noise figure, and an output 1dB compression point of 23.5dBm. The MAX2056 also provides an exceptionally high OIP3 level of 39dBm, which is maintained over the entire attenuation range. In addition, the on-chip analog attenuators yield infinite control and high attenuation accuracy over selectable 22dB or 44dB control ranges. Each of these features makes the MAX2056 an ideal VGA for cellular band GSM, cdma2000, W-CDMA, and iDEN® transmitter and power amplifier AGC circuits. The MAX2056 is pin compatible with the MAX2057 1700MHz to 2500MHz VGA, making this family of amplifiers ideal for applications where a common PC board layout is used for both frequency bands. The MAX2056 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

800MHz to 1000MHz RF Frequency Range†
39dBm Constant OIP3 (Over All Gain Settings)
23.5dBm Output 1dB Compression Point
15.5dB Typical Gain at Maximum Gain Setting
0.15dB Gain Flatness Over 100MHz Bandwidth
4.5dB Noise Figure at Maximum Gain Setting (Using 1 Attenuator)
Two Gain-Control Ranges: 22dB and 44dB
Analog Gain Control
Single +5V Supply Voltage
Pin Compatible with MAX2057, 1700MHz to 2500MHz RF VGA
External Current-Setting Resistors Provide Option for Operating VGA in Reduced-Power/Reduced-Performance Mode
Lead-Free Package Available

MAX2056: Typical Application Circuit

Applications/Uses

±10V from +5V Logic Supply
Automated Test Equipment (ATE)
Broadband Systems
Cellular cdmaOne™, cdma2000®, and Integrated Digital Enhanced Network Base-Station Transmitter
Digital and Spread-Spectrum Communication Systems
GSM 850/GSM 900 2G and 2.5G EDGE Base-Station Transmitters and Power Amplifiers
Microwave Terrestrial Links
Receiver Gain Control
Transmitter Gain Control
WCDMA 850MHz and Other 3G Base-Station Transmitters and Power Amplifiers

DataSheet

title	Download file
MAX2056 Data Sheet	MAX2056.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)
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)
MAX2056	Analog	1	800	1000	44	15.5	4.5	39	54	-55	-68	4.75 to 5.25	136	6.0 x 6.0	TQFN/36	-40 to +85

Design kits & evaluation modules

MAX2056EVKIT

Quality and Environmental Data

MAX2056.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX2056ETX	No Longer Available	MAX2056ETX+	TQFN,;36 pin;37.2 mm²	-40°C to +85°C	No
MAX2056ETX+	Active		TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX2056ETX+T	Active		TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX2056ETX-T	No Longer Available	MAX2056ETX+T	QFN;36 pin	-40°C to +85°C	See data sheet

MAX2056.pdf MAX2056

The IP3 Specification - Demystified MAX2067

MAX2056.pdf MAX2056