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MAX2066EVKIT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23
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
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
MAX2066
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-4057; Rev 0; 3/08
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.
+
Denotes a lead-free package.
*
EP = Exposed pad.
T = Tape and reel.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
DOCSIS and CableLabs are registered trademarks of Cable
Television Laboratories, Inc. (CableLabs®).
PART TEMP RANGE
PIN-
PACKAGE
MAX2066ETL+ -40°C to +85°C 40 Thin QFN-EP*
MAX2066ETL+T -40°C to +85°C 40 Thin QFN-EP*
SPI is a trademark of Motorola, Inc.
Pin Configuration appears at end of data sheet.
MAX2066
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
+3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, high-current (HC) mode, V
CC
= V
DD
= +3.0V to +3.6V, T
C
= -40°C to +85°C. Typical values are at V
CC
=
V
DD
= +3.3V and T
C
= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: Based on junction temperature T
J
= T
C
+ (θ
JC
x V
CC
x I
CC
). This formula can be used when the temperature of the exposed
pad is known while the device is soldered down to a printed-circuit board (PCB). See the
Applications Information
section
for details. The junction temperature must not exceed +150°C.
Note 2: Junction temperature T
J
= T
A
+ (θ
JA
x V
CC
x I
CC
). This formula can be used when the ambient temperature of the PCB is
known. The junction temperature must not exceed +150°C.
Note 3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer
board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial
.
Note 4: T
C
is the temperature on the exposed pad of the package. T
A
is the ambient temperature of the device and PCB.
VCC_ to GND ........................................................-0.3V to +5.5V
VDD_LOGIC, DATA, CS, CLK,
SER/PAR..............................................-0.3V to (VCC_ + 0.3V)
STATE_A, STATE_B, D0–D4 ....................-0.3V to (VCC_ + 0.3V)
AMP_IN, AMP_OUT .................................-0.3V to (VCC_ + 0.3V)
ATTEN_IN, ATTEN_OUT........................................-1.2V to +1.2V
RSET to GND.........................................................-0.3V to +1.2V
RF Input Power (ATTEN_IN, ATTEN_OUT).....................+20dBm
RF Input Power (AMP_IN)...............................................+18dBm
Continuous Power Dissipation (Note 1) ...............................6.5W
θ
JA
(Notes 2, 3)..............................................................+38°C/W
θ
JC
(Note 3) ...................................................................+10°C/W
Operating Temperature Range (Note 4).....T
C
= -40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
(Note 5) 3.0 3.3 3.6 V
Supply Current I
CC
58 80 mA
LOGIC INPUTS (DATA, CS, CLK, SER/PAR, STATE_A, STATE_B, D0–D4)
Input High Voltage V
IH
2V
Input Low Voltage V
IL
0.8 V
+5V SUPPLY DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
CC
= V
DD
= +4.75V to +5.25V, T
C
= -40°C to +85°C. Typical values are at V
CC
= V
DD
= +5V and
T
C
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
4.75 5 5.25 V
Low-current (LC) mode 70 90
Supply Current I
CC
High-current (HC) mode 121 144
mA
LOGIC INPUTS (DATA, CS, CLK, SER/PAR, STATE_A, STATE_B, D0–D4)
Input High Voltage V
IH
3V
Input Low Voltage V
IL
0.8 V
Input Current Logic-High I
IH
-1 +1 µA
Input Current Logic-Low I
IL
-1 +1 µA
MAX2066
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
_______________________________________________________________________________________ 3
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
CC
= V
DD
= +4.75 to +5.25V, HC mode with attenuator set for maximum gain, 50MHz ≤ f
RF
≤ 1000MHz,
T
C
= -40°C to +85°C. Typical values are at V
CC
= V
DD
= +5.0V, HC mode, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, unless
otherwise noted.) (Note 6)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Frequency Range f
RF
(Notes 5, 7) 50 1000 MHz
200MHz 20.5
350MHz, T
C
= +25°C 18.6 19.9 21.1
450MHz 19.5
750MHz 18.1
Small-Signal Gain G
900MHz 17.4
dB
Gain Variation vs. Temperature -0.004 dB/°C
Gain Flatness vs. Frequency
Any 100MHz frequency band from 50MHz
to 500MHz
0.4 dB
200MHz 5.2
350MHz, T
C
= +25°C (Note 5) 5.5 6.6
450MHz 5.6
750MHz 6.2
Noise Figure NF
900MHz 6.4
dB
Total Attenuation Range 31 dB
Output Second-Order Intercept
Point
OIP2 P
OUT
= 0dBm/tone, Δf = 1MHz, f
1
+ f
2
65 dBm
200MHz 42.4
350MHz 40.4
450MHz 39.5
750MHz 37.3
P
OUT
= 0dBm/tone,
H C m od e, Δ f = 1M H z
900MHz 36.2
200MHz 40
350MHz 38
450MHz 37
750MHz 35
Output Third-Order Intercept
Point
OIP3
P
OUT
= 0dBm/tone,
LC mode, Δf = 1MHz
900MHz 33
dBm
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
CC
= V
DD
= +3.0V to +3.6V, T
C
= -40°C to +85°C. Typical values are at V
CC
= V
DD
= +3.3V, HC mode
with attenuator set for maximum gain, P
IN
= -20dBm, f
RF
= 200MHz, and T
C
= +25°C, unless otherwise noted.) (Note 6)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Frequency Range f
RF
(Notes 5, 7) 50 1000 MHz
Small-Signal Gain G 20 dB
Output Third-Order Intercept
Point
OIP3 P
OUT
= 0dBm/tone, maximum gain setting 38 dBm
Noise Figure NF Maximum gain setting 5.6 dB
Total Attenuation Range 31 dB
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MAX2066EVKIT

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