MAX2056 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 800MHz to 1000MHz Variable-Gain Amplifier with Analog Gain Control

19-3508; Rev 0; 2/05
EVAALVUAAILTAIOBNLEKIT
800MHz to 1000MHz Variable-Gain
Amplifier with Analog Gain Control
General Description
The MAX2056 general-purpose, high-performance vari-
able-gain amplifier (VGA) is designed to operate in the
800MHz to 1000MHz frequency range*. This device fea-
tures 15.5dB of gain, 4.5dB of noise figure, and an out-
put 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^® transmit-
ter 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 per-
formance is guaranteed over the extended -40°C to
+85°C temperature range.
Applications
GSM 850/GSM 900 2G and 2.5G EDGE Base-
Station Transmitters and Power Amplifiers
Cellular cdmaOne™, cdma2000, and Integrated
Digital Enhanced Network (iDEN) Base-Station
Transmitters and Power Amplifiers
W-CDMA 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
cdmaOne is a trademark of CDMA Development Group.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
iDEN is a registered trademark of Motorola, Inc.
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
*Note: Operation beyond this range is possible, but has not been
characterized.
Ordering Information
PART
TEMP
RANGE
PIN-PACKAGE ^PKG
CODE
MAX2056ETX
-40°C to +85°C ^{36 Thin QFN-EP**} T3666-2
6mm x 6mm
MAX2056ETX-T
-40°C to +85°C ^{36 Thin QFN-EP**} T3666-2
6mm x 6mm
MAX2056ETX+D -40°C to +85°C ^{36 Thin QFN-EP**} T3666-2
6mm x 6mm
MAX2056ETX+TD -40°C to +85°C ^{36 Thin QFN-EP**} T3666-2
6mm x 6mm
**EP = Exposed paddle.
+ = Lead (Pb) free.
D = Dry pack.
T = Tape-and-reel package.
Pin Configuration/Functional Diagram appears at end of data
sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.