Rainbow Electronics MAX2063 User Manual
19-5303; Rev 0; 6/10
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 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. 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 temperature range, from TC = -40NC to +85NC.
Applications
IF and RF Gain Stages
Temperature-Compensation Circuits
Cellular Band WCDMA and cdma2000M 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
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX2063ETM+
MAX2063ETM+T
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
T = Tape and reel.
-40NC to +85NC
-40NC to +85NC
48 Thin QFN-EP*
48 Thin QFN-EP*
MAX2063
SPI is a trademark of Motorola, Inc.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
WiMAX is a trademark of WiMAX Forum.
_______________________________________________________________ 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.
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
ABSOLUTE MAXIMUM RATINGS
V
CC_AMP_1
STA_A_1, STA_A_2, STA_B_1, STA_B_2, PD_1,
PD_2, AMPSET to GND ...................................-0.3V to +3.6V
DAT, CS, CLK, DA_SP to GND ............................-0.3V to +3.6V
D0_1, D1_1, D2_1, D3_1, D4_1, D0_2, D1_2,
D2_2, D3_2, D4_2 to GND ...............................-0.3V to +3.6V
AMP_IN_1, AMP_IN_2 to GND ..........................+0.95V to +1.2V
AMP_OUT_1, AMP_OUT_2 to GND .....................-0.3V to +5.5V
MAX2063
D_ATT_IN_1, D_ATT_IN_2, D_ATT_OUT_1,
D_ATT_OUT_2 to GND ......................................... 0V to +3.6V
REG_OUT .............................................................-0.3V to +3.6V
Note 1: Based on junction temperature TJ = TC + (BJC x VCC x ICC). This formula can be used when the temperature of the
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
Note 3: Junction temperature T
Note 4: T
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.
, V
CC_AMP_2
exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details.
The junction temperature must not exceed +150NC.
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
known. The junction temperature must not exceed +150NC.
is the temperature on the exposed pad of the package. TA is the ambient temperature of the device and PCB.
C
, V
to GND ..........-0.3V to +5.5V
CC_RG
= TA + (BJA x VCC x ICC). This formula can be used when the ambient temperature of the PCB is
J
RF Input Power (D_ATT_IN_1, D_ATT_IN_2) ............... +20dBm
RF Input Power (AMP_IN_1, AMP_IN_2) ...................... +18dBm
q
(Notes 1, 2) ......................................................... +12.3NC/W
JC
q
(Notes 2, 3) ............................................................ +38NC/W
JA
Continuous Power Dissipation (Note 1) .............................. 5.3W
Operating Case Temperature Range (Note 4) .. -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
+5V SUPPLY DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VCC = V
-40NC to +85NC. Typical values are at V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
Supply Current I
Power-Down Current I
Input Low Voltage V
Input High Voltage V
Input Logic Current I
CC_AMP_1
CC_
DCPD
IH
= V
= +5.0V and T
CC
DC
PD_1 = PD_2 = 1, VIH = 3.3V 5.2 8 mA
IL
IH
, I
IL
CC_AMP_2
C
= V
= +25NC, unless otherwise noted.)
= +4.75V to +5.25V, AMPSET = 0, PD_1 = PD_2 = 0, T
CC_RG
+3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VCC = V
= -40NC to +85NC. Typical values are at V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
Supply Current I
Power-Down Current I
Input Low Voltage V
Input High Voltage V
CC_AMP_1
DCPD
= V
= +3.3V and T
CC_
CC
DC
IL
IH
CC_AMP_2
PD_1 = PD_2 = 1, VIH = 3.3V 4.3 8 mA
= V
= +25NC, unless otherwise noted.)
C
= +3.135V to +3.465V, AMPSET = 1, PD_1 = PD_2 = 0, T
CC_RG
4.75 5 5.25 V
148 205 mA
0.5 V
1.7 3.465 V
-1 +1
3.135 3.3 3.465 V
88 145 mA
0.5 V
1.7 3.465 V
FA
=
C
C
2
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Frequency f
RF
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VCC = V
RF ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz ≤ fRF ≤ 500MHz, TC = -40NC to +85NC. Typical
values are at maximum gain setting, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small-Signal Gain G
Gain vs. Temperature -0.006 dB/NC
Gain Flatness vs. Frequency
Noise Figure NF
Total Attenuation Range 30.8 dB
Output Second-Order Intercept
Point (Minimum Attenuation)
Path Isolation
CC_AMP_1
= +5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)
CC_
OIP2 P
(Note 5) 50 1000 MHz
= V
CC_AMP_2
fRF = 50MHz 22.0
fRF = 100MHz 21.7
fRF = 200MHz 21.3
fRF = 350MHz, TC = +25NC 18 21.0 23
fRF = 450MHz 20.8
fRF = 750MHz 19.9
fRF = 900MHz 18.3
From 100MHz to 200MHz 0.35
Any 100MHz frequency band from
200MHz to 500MHz
fRF = 50MHz 5.2
fRF = 100MHz 5.4
fRF = 200MHz 5.6
fRF = 350MHz 5.8
fRF = 450MHz 5.9
fRF = 750MHz 6.4
fRF = 900MHz 6.7
OUT
RF input 1 amplified power measured at
RF output 2 relative to RF output 1, all
unused ports terminated to 50I
RF input 2 amplified power measured at
RF output 1 relative to RF output 2, all
unused ports terminated to 50I
= V
= 0dBm/tone, Df = 1MHz, f1 + f
= +4.75V to +5.25V, attenuators are set for maximum gain,
CC_RG
0.25
2
51.6 dBm
48.8
49.4
dB
dB
dB
dB
MAX2063
3
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, VCC = V
RF ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz ≤ fRF ≤ 500MHz, TC = -40NC to +85NC. Typical
values are at maximum gain setting, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CC_AMP_1
CC_
MAX2063
Output Third-Order Intercept
Point
Output -1dB Compression Point P
Second Harmonic HD2 P
Third Harmonic HD3 P
Group Delay Includes EV kit PCB delays 0.87 ns
Amplifier Power-Down Time
Amplifier Power-Up Time
Input Return Loss RL
Output Return Loss RL
DIGITAL ATTENUATOR (each path, unless otherwise noted)
Insertion Loss IL 3.0 dB
Input Second-Order Intercept
Point
Input Third-Order Intercept
Point
Attenuation Range 30.8 dB
Step Size 1 dB
Relative Attenuation Accuracy 0.11 dB
Absolute Attenuation Accuracy 0.23 dB
Insertion Phase Step fRF = 170MHz
OIP3
= V
CC_AMP_2
= +5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)
P
OUT
Df = 1MHz, fRF = 50MHz
P
OUT
Df = 1MHz, fRF = 100MHz
P
OUT
Df = 1MHz, fRF = 200MHz
P
OUT
Df = 1MHz, fRF = 350MHz
P
OUT
Df = 1MHz, fRF = 450MHz
P
OUT
Df = 1MHz, fRF = 750MHz
P
OUT
Df = 1MHz, fRF = 900MHz
1dB
OUT
IIP2
IIP3
(Note 7) 18.8 dBm
OUT
OUT
PD_1 or PD_2 from 0 to 1, amplifier DC
supply current settles to within 0.1mA
PD_1 or PD_2 from 1 to 0, amplifier DC
supply current settles to within 1%
50I source 23.3 dB
IN
50I load 24.4 dB
P
RF1
attenuation), Df = 1MHz, f1 + f
P
IN1
attenuation), Df = 1MHz
= V
= 0dBm/tone,
= 0dBm/tone,
= 0dBm/tone,
= 0dBm/tone,
= 0dBm/tone,
= 0dBm/tone,
= 0dBm/tone,
= +3dBm -54.8 dBc
= +3dBm -72.9 dBc
= 0dBm P
= 0dBm P
= +4.75V to +5.25V, attenuators are set for maximum gain,
CC_RG
47.1
43.9
41.0
37.0
35.2
28.7
26.5
0.5 Fs
0.5 Fs
= 0dBm (minimum
RF2
= 0dBm (minimum
IN2
0dB to 16dB -0.4
0dB to 31dB 0.9
2
53.1 dBm
43.2 dBm
dBm
Degrees0dB to 24dB 0.6
4
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
+5V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, VCC = V
RF ports are driven from 50I sources, AMPSET = 0, PD_1 = PD_2 = 0, 100MHz ≤ fRF ≤ 500MHz, TC = -40NC to +85NC. Typical
values are at maximum gain setting, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Amplitude Overshoot/
Undershoot
Switching Speed
Input Return Loss RL
Output Return Loss RL
SERIAL PERIPHERAL INTERFACE (SPI)
Maximum Clock Speed f
Data-to-Clock Setup Time t
Data-to-Clock Hold Time t
Clock-to-CS Setup Time t
CS Positive Pulse Width t
CS Setup Time t
Clock Pulse Width t
CC_AMP_1
CC_
= V
CC_AMP_2
= +5.0V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)
Between any
two states
RF settled to
within Q0.1dB
50I source 21.6 dB
IN
OUT
CLK
CS
CH
ES
EW
EWS
CW
50I load 21.2 dB
= V
= +4.75V to +5.25V, attenuators are set for maximum gain,
CC_RG
Elapsed time = 15ns 1.0
Elapsed time = 40ns 0.05
31dB to 0dB 25
0dB to 31dB 21
dB
ns
20 MHz
2 ns
2.5 ns
3 ns
7 ns
3.5 ns
5 ns
MAX2063
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTIC
(Typical Application Circuit, VCC = V
are driven from 50I sources, AMPSET = 1, PD_1 = PD_2 = 0, 100MHz ≤ fRF ≤ 500MHz, TC = -40NC to +85NC. Typical values are at
maximum gain setting, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small-Signal Gain G 20.9 dB
Output Third-Order Intercept
Point
Noise Figure NF 5.9 dB
Total Attenuation Range 30.8 dB
Path Isolation
Output -1dB Compression Point P
Note 5: Operation outside this range is possible, but with degraded performance of some parameters. See the Typical Operating
Characteristics.
Note 6: All limits include external component losses. Output measurements are performed at the RF output port of the Typical
Application Circuit.
Note 7: It is advisable not to continuously operate RF input 1 or RF input 2 above +15dBm.
= +3.3V, PIN = -20dBm, fRF = 350MHz, and TC = +25NC, unless otherwise noted.) (Note 6)
CC_
CC_AMP_1
OIP3 P
1dB
= V
CC_AMP_2
OUT
RF input 1 amplified power measured at
RF output 2 relative to RF output 1, all
unused ports terminated to 50I
RF input 2 amplified power measured at
RF output 1 relative to RF output 2, all
unused ports terminated to 50I
(Note 7) 13.4 dBm
= V
= 0dBm/tone 29.6 dBm
= +3.3V, attenuators are set for maximum gain, RF ports
CC_RG
48.8
49.1
dB
5
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
Typical Operating Characteristics
(Typical Application Circuit, V
driven from 50ω sources, AMPSET = 0, PD_1 = PD_2 = 0, P
CC
= V
CC_AMP_1
= V
CC_AMP_2
= V
CC_RG
= -20dBm, f
IN
= 5V, attenuators are set for maximimum gain, RF ports are
= 350MHz, T
RF
= +25°C, unless otherwise noted.)
C
170
MAX2063
160
150
SUPPLY CURRENT (mA)
140
130
4.750 5.250
TC = -40°C
TC = +25°C
GAIN OVER ATTENUATOR SETTING
vs. RF FREQUENCY
25
15
5
-5
GAIN OVER ATTENUATOR SETTING (dB)
-15
50 1050
RF FREQUENCY (MHz)
SUPPLY CURRENT vs. V
VCC (V)
CC
TC = +85°C
5.1255.0004.875
850650450250
24
MAX2063 toc01
22
20
GAIN (dB)
18
16
1.00
0.75
MAX2063 toc04
0.50
0.25
-0.25
RELATIVE ERROR (dB)
-0.50
-0.75
-1.00
GAIN vs. RF FREQUENCY
TC = -40°C
TC = +85°C
50 1050
TC = +25°C
850650450250
RF FREQUENCY (MHz)
ATTENUATOR RELATIVE
ERROR vs. RF FREQUENCY
0
ERROR FROM 23dB TO 24dB
50 1050
RF FREQUENCY (MHz)
850650250 450
24
MAX2063 toc02
22
20
GAIN (dB)
18
16
1.00
0.75
MAX2063 toc05
0.50
0.25
0
-0.25
ABSOLUTE ERROR (dB)
-0.50
-0.75
-1.00
GAIN vs. RF FREQUENCY
VCC = 4.75V, 5.00V, 5.25V
50 1050
RF FREQUENCY (MHz)
850650450250
ATTENUATOR ABSOLUTE
ERROR vs. RF FREQUENCY
25dB
24dB
50 1050
RF FREQUENCY (MHz)
850650250 450
MAX2063 toc03
MAX2063 toc06
INPUT MATCH OVER ATTENUATOR
SETTING vs. RF FREQUENCY
0
16dB
-10
-20
-30
-40
INPUT MATCH OVER ATTENUATOR SETTING (dB)
-50
0 1000
8dB
1dB
2dB
31dB
RF FREQUENCY (MHz)
0dB
4dB
MAX2063 toc07
800600400200
OUTPUT MATCH OVER ATTENUATOR
SETTING vs. RF FREQUENCY
0
-10
16dB, 31dB
-20
-30
OUTPUT MATCH OVER ATTENUATOR SETTING (dB)
-40
1dB, 4dB, 8dB
0dB
0 1000
2dB
800600400200
RF FREQUENCY (MHz)
MAX2063 toc08
6
Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
Typical Operating Characteristics (continued)
(Typical Application Circuit, V
driven from 50ω sources, AMPSET = 0, PD_1 = PD_2 = 0, P
CC
= V
CC_AMP_1
= V
CC_AMP_2
IN
= V
CC_RG
= -20dBm, f
= 5V, attenuators are set for maximimum gain, RF ports are
= 350MHz, T
RF
= +25°C, unless otherwise noted.)
C
MAX2063
REVERSE GAIN OVER ATTENUATOR
SETTING vs. RF FREQUENCY
-30
-40
-50
-60
-70
REVERSE GAIN OVER ATTENUATOR SETTING (dB)
-80
50 1050
ATTEN 0dB
ATTEN 31dB
RF FREQUENCY (MHz)
CHANNEL ISOLATION vs. RF FREQUENCY
(MINIMUM GAIN)
75
65
55
45
CHANNEL ISOLATION (dB)
35
25
RELATIVE POWERS AT RF OUTPUTS
CH1 TO CH2
CH2 TO CH1
50 1050
RF FREQUENCY (MHz)
ATTENUATOR PHASE CHANGE
BETWEEN STATES vs. RF FREQUENCY
60
REFERENCED TO HIGH GAIN STATE
50
MAX2063 toc09
850650450250
POSITIVE PHASE = ELECTRICALLY SHORTER
40
30
20
10
0
-10
-20
-30
50 1050
ATTENUATOR PHASE CHANGE BETWEEN STATES (DEGREES)
RF FREQUENCY (MHz)
850650450250
MAX2063 toc10
NOISE FIGURE vs. RF FREQUENCY
9
MAX2063 toc12
850650450250
8
7
6
NOISE FIGURE (dB)
5
4
3
50 1050
TC = +85°C
TC = +25°C
TC = -40°C
RF FREQUENCY (MHz)
MAX2063 toc13
850650450250
CHANNEL ISOLATION vs. RF FREQUENCY
(MAXIMUM GAIN)
75
65
55
45
CHANNEL ISOLATION (dB)
35
25
RELATIVE POWERS AT RF OUTPUTS
CH1 TO CH2
50 1050
RF FREQUENCY (MHz)
CH2 TO CH1
NOISE FIGURE vs. RF FREQUENCY
9
8
7
6
NOISE FIGURE (dB)
5
4
3
50 1050
VCC = 4.75V, 5.00V, 5.25V
RF FREQUENCY (MHz)
MAX2063 toc11
850650450250
MAX2063 toc14
850650450250
OUTPUT P
22
20
18
(dBm)
1dB
TC = +85°C
16
OUTPUT P
14
12
50 1050
vs. RF FREQUENCY
1dB
TC = -40°C
TC = +25°C
RF FREQUENCY (MHz)
OUTPUT P
22
MAX2063 toc15
850650450250
20
18
(dBm)
1dB
VCC = 4.75V
16
OUTPUT P
14
12
50 1050
vs. RF FREQUENCY
1dB
VCC = 5.25V
VCC = 5.00V
RF FREQUENCY (MHz)
MAX2063 toc16
850650450250
7
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