MAX2066ETL Datasheet, PDF (1/23 Pages) Maxim Integrated Products – 50MHz to 1000MHz High-Linearity, Serial/Parallel-Controlled Digital VGA

19-4057; Rev 0; 3/08
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
General Description
The MAX2066 high-linearity digital variable-gain amplifi-
er (VGA) is a monolithic SiGe BiCMOS attenuator and
amplifier designed to interface with 50Ω systems oper-
ating in the 50MHz to 1000MHz frequency range (See
the Typical Application Circuit). The digital attenuator is
controlled as a slave peripheral using either the SPI™-
compatible interface or a parallel bus with 31dB total
adjustment range in 1dB steps. An added feature
allows “rapid-fire” gain selection between each of four
steps, preprogrammed by the user through the SPI-
compatible interface. The 2-pin control allows the user
to quickly access any one of four customized attenua-
tion states without reprogramming the SPI bus.
Because each stage has its own RF input and RF output,
this component can be configured to either optimize NF
(amplifier configured first), or OIP3 (amplifier last). The
device’s performance features include 22dB amplifier
gain (amplifier only), 5.2dB NF at maximum gain (includes
attenuator insertion loss), and a high OIP3 level of
+42.4dBm. Each of these features makes the MAX2066
an ideal VGA for numerous receiver and transmitter
applications.
In addition, the MAX2066 operates from a single +5V
supply with full performance, or a single +3.3V supply
with slightly reduced performance, and has an
adjustable bias to trade current consumption for linearity
performance. This device is available in a compact 40-
pin thin QFN package (6mm x 6mm) with an exposed
pad. Electrical performance is guaranteed over the
extended temperature range (T_C = -40°C to +85°C).
Applications
IF and RF Gain Stages
Cellular Band WCDMA and cdma2000^® Base
Stations
GSM 850/GSM 900 EDGE Base Stations
WiMAX and LTE Base Stations and Customer
Premise Equipment
Fixed Broadband Wireless Access
Wireless Local Loop
Military Systems
Video-on-Demand (VOD) and DOCSIS^®-
Compliant EDGE QAM Modulation
Cable Modem Termination Systems (CMTS)
RFID Handheld and Portal Readers
SPI is a trademark of Motorola, Inc.
Features
♦ 50MHz to 1000MHz RF Frequency Range
♦ Pin-Compatible Family Includes
MAX2065 (Analog/Digital VGA)
MAX2067 (Analog VGA)
♦ 20.5dB (typ) Maximum Gain
♦ 0.4dB Gain Flatness Over 100MHz Bandwidth
♦ 31dB Gain Range
♦ Supports Four “Rapid-Fire” Preprogrammed
Attenuator States
Quickly Access Any One of Four Customized
Attenuation States Without Reprogramming
the SPI Bus
Ideal for Fast-Attack, High-Level Blocker Protection
Prevents ADC Overdrive Condition
♦ Excellent Linearity (Configured with Amplifier
Last)
+42.4dBm OIP3
+65dBm OIP2
+19dBm Output 1dB Compression Point
-68dBc HD2
-88dBc HD3
♦ 5.2dB Typical Noise Figure (NF)
♦ Fast, 25ns Digital Switching
♦ Very Low Digital VGA Amplitude Overshoot/
Undershoot
♦ Single +5V Supply (Optional +3.3V Operation)
♦ External Current-Setting Resistors Provide Option
for Operating Device in Reduced-Power/
Reduced-Performance Mode
Ordering Information
PART
TEMP RANGE
MAX2066ETL+
-40°C to +85°C
MAX2066ETL+T
-40°C to +85°C
+Denotes a lead-free package.
*EP = Exposed pad.
T = Tape and reel.
PIN-
PACKAGE
40 Thin QFN-EP*
40 Thin QFN-EP*
Pin Configuration appears at end of data sheet.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
DOCSIS and CableLabs are registered trademarks of Cable
Television Laboratories, Inc. (CableLabs®).
________________________________________________________________ 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.