Rainbow Electronics MAX2063 - Manual

_______________________________________________________________ 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.
MAX2063
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
General Description
The MAX2063 high-linearity, dual digital variable-gain
amplifier (VGA) operates in the 50MHz to 1000MHz
frequency range. Each digital attenuator is controlled
as a slave peripheral using either the SPIK-compatible
interface or a 5-bit parallel bus with 31dB total adjust-
ment 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. A separate 2-pin control allows the user to
quickly access any one of four customized attenuation
states without reprogramming the SPI bus.
Since each of the stages has its own external RF input
and RF output, this component can be configured
to either optimize noise figure (amplifier configured
first) or OIP3 (amplifier configured last). The device’s
performance features include 24dB of amplifier gain
(amplifier only), 5.6dB noise figure (NF) at maximum
gain (including attenuator insertion losses), and a high
OIP3 level of +41dBm. Each of these features makes the
device an ideal VGA for multipath receiver and transmitter
applications.
In addition, the device operates from a single +5V
supply with full performance, or a +3.3V supply for an
enhanced power-savings mode with lower performance.
This device is available in a compact 48-pin thin QFN
package (7mm x 7mm) with an exposed pad. Electrical
performance is guaranteed over the extended tempera-
ture range, from T
C = -40NC to +85NC.
Applications
IF and RF Gain Stages
Temperature-Compensation Circuits
Cellular Band WCDMA and cdma2000
M Base
Stations
GSM 850/GSM 900 EDGE Base Stations
WiMAXK and LTE Base Stations and Customer
Premise Equipment
Fixed Broadband Wireless Access
Wireless Local Loop
Military Systems
Features
S
Independently Controlled Dual Paths
S
50MHz to 1000MHz RF Frequency Range
S Pin-Compatible Family Includes
MAX2062 (Analog/Digital VGA)
MAX2064 (Analog-Only VGA)
S 21.3dB (typ) Maximum Gain
S 0.25dB Gain Flatness Over 100MHz Bandwidth
S 31dB Gain Range
S 58dB Path Isolation at 200MHz
S 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
S Excellent Linearity at 200MHz
+41dBm OIP3
+56dBm OIP2
+19dBm Output 1dB Compression Point
S
5.6dB Typical Noise Figure
S
25ns Digital Switching Time
S
Very Low Distortion VGA Amplitude Overshoot/
Undershoot of 0.05dB
S
Single +5V Supply (or +3.3V Operation)
S
Amplifier Power-Down Mode for TDD Applications
19-5303; Rev 0; 6/10
Ordering Information
SPI is a trademark of Motorola, Inc.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
WiMAX is a trademark of WiMAX Forum.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
T = Tape and reel.
PART TEMP RANGE PIN-PACKAGE
MAX2063ETM+ -40NC to +85NC 48 Thin QFN-EP*
MAX2063ETM+T -40NC to +85NC 48 Thin QFN-EP*