MAX2092
700MHz to 2700MHz Analog VGA with Threshold
Alarm Circuit and Error Amplifier for Level Control
General Description
The MAX2092 high-linearity analog variable-gain amplifier
(VGA) is a monolithic SiGe BiCMOS attenuator/amplifier/
error amplifier with an alarm circuit designed to interface
with 50I systems operating in the 700MHz to 2700MHz
frequency range. The device features a gain range of
+18.1dB to -22.3dB, a noise figure of 5.2dB, OIP3 linear-
ity of +32.5dBm, and a wide RF bandwidth. Each of these
features makes the device an ideal VGA for numerous
receiver and transmitter applications. When paired with
the MAX2091 or MAX2091B variable gain upconverter, a
complete 2-chip IF-RF signal conditioning solution is pos-
sible for microwave point-to-point transmitters.
The MAX2092 operates from a single +5V supply, and
is available in a compact 20-pin TQFN package (5mm
x 5mm) with an exposed pad. Electrical performance is
guaranteed over the extended temperature range from
T
C
= -40NC to +95NC.
Benefits and Features
●
Wide Band Analog VGA Increases System
Performance
• 700MHz to 2700MHz RF Frequency Range
• High Linearity
• +32.5dBm OIP3
• +18.2dBm Output -1dB Compression Point
• 18.1dB Gain with 40.4dB Attenuation Range and
0.03dB Gain Variation Over 100MHz Bandwidth at
1835MHz
• 5.2dB Noise Figure (Includes Attenuator Insertion
Loss)
●
Integrated Error Amplifier and Alarm Circuit Simplifies
ALC Operation
●
Lowers Power Consumption with Power-Down
Capability
●
Package with Exposed Pad Improves Heat
Dissipation and System Performance
Applications
●
●
●
●
●
●
●
●
Microwave Point-to-Point Receivers and Transmitters
RF Variable-Gain Stages
Temperature Compensation Circuits
Cellular Applications
WiMAX® Applications
LTE Applications
Fixed Broadband Wireless Access
Wireless Local Loop
Ordering Information
appears at end of data sheet.
WiMAX is a registered certification mark and registered service
mark of WiMAX Forum.
19-6377; Rev 1; 7/15
MAX2092
700MHz to 2700MHz Analog VGA with Threshold
Alarm Circuit and Error Amplifier for Level Control
Absolute Maximum Ratings
V
CC_RF
, V
CC_A
........................................................-0.3V to +6V
RF_OUT, RF_IN ........................................ -0.3V to (V
CC
+ 0.3V)
R_BIAS, CTRL1, CTRL2,
PLVLSET, DET_VIN ... -0.3V to Minimum (V
CC
+ 0.3V, +3.6V)
RF_IN Input Power ........................................................ +15dBm
RF_OUT Output Power .................................................. +23dBm
Continuous Power Dissipation (Note 1) .............................2.5W
Operating Case Temperature
Range (Note 2) ............................................... -40NC to +95NC
Maximum Junction Temperature.....................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) .................................... +260NC
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
+ (B
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 PCB. See the
Applications Information
section for details.
The junction temperature must not exceed +150NC.
Note 2:
T
C
is the temperature on the exposed pad of the package. T
A
is the ambient temperature of the device and PCB.
Package Thermal Characteristics
Junction-to-Ambient Thermal Resistance (q
JA
)
(Notes 3, 4) ................................................................. 32°C/W
Junction-to-Case Thermal Resistance (q
JC
)
(Notes 1, 4) ................................................................... 7°C/W
Note 3:
Junction temperature T
J
= T
A
+ (q
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 +150NC.
Note 4:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
DC Electrical Characteristics
(Typical
Application Circuit
with V
CC
= 4.75V to 5.8V, V
GND
= 0V, and T
C
= -40°C to +95°C. Typical values are at V
CC
= 5.5V and
T
C
= +25°C, unless otherwise noted.) (Note 5)
PARAMETER
Supply Voltage
Total Supply Current
CTRL1/CTRL2 Logic-Low Input
Voltage
CTRL1, CTRL2 Logic-High Input
Voltage
Input Logic Current
PLVLSET Input-Voltage Range
DET_VIN Input-Voltage Range
SYMBOL
V
CC
Power down: CTRL1 = 0, CTRL2 = 0
I
DC
V
IL
V
IH
I
IH,
I
IL
V
IN
V
IN
2.2
-1
0
0
+1
2.5
2.5
VGA-only mode: CTRL1 = 1, CTRL2 = 0
ALC mode: CTRL1 = 1, CTRL2 = 1
CONDITIONS
MIN
4.75
2
80
93
TYP
MAX
5.8
3
90
110
0.8
V
V
µA
V
V
mA
UNITS
V
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Maxim Integrated
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2
MAX2092
700MHz to 2700MHz Analog VGA with Threshold
Alarm Circuit and Error Amplifier for Level Control
Recommended AC Electrical Characteristics
PARAMETER
RF Frequency
SYMBOL
f
RF
(Note 6)
CONDITIONS
MIN
700
TYP
MAX
2700
UNITS
MHz
AC Electrical Characteristics
(Typical
Application Circuit
with analog attenuator set for maximum gain, V
CC
= 4.75V to 5.8V, f
RF
= 1835MHz, P
RFIN
= -16dBm
(CW), T
C
= -40°C to +95°C, and RF ports are connected to 50Ω sources and loads, unless otherwise noted. Typical values are at
T
C
= +25°C, V
CC
= 5.5V, P
RF_IN
= -16dBm, V
PLVLSET
= 2.5V, CTRL1 = 1, CTRL2 = 0. Min/max specifications apply over supply,
process, and temperature, unless otherwise noted.) (Notes 5, 7)
PARAMETER
Small-Signal Gain
Gain vs. Temperature
974MHz ±50MHz
1835MHz ±50MHz
Gain Flatness vs. Frequency
1835MHz ±80MHz
1835MHz ±100MHz
2200MHz ±100MHz
f
RF
= 974MHz
Noise Figure
NF
f
RF
= 1835MHz
f
RF
= 2200MHz
f
RF
= 974MHz
Total Attenuation Range
Output Second-Order Intercept
Point
Output Third-Order Intercept
Point
Output -1dB Compression Point
Second Harmonic
Third Harmonic
Input Return Loss
Output Return Loss
ALARM CIRCUIT (CTRL1 = 1 CTRL2 = 1)
Lower Alarm Threshold
Upper Alarm Threshold
Hysteresis
Alarm Output Logic 1
Alarm Output Logic 0
Output =
ALM
Output =
ALM
3.135
Input = DET_VIN
Input = DET_VIN
0.175
2.25
29
3.3
3.465
0.4
V
V
mV
V
V
f
RF
= 1835MHz
f
RF
= 2200MHz
OIP2
P
RFOUT
= +2dBm/tone,
Df
= 1MHz, f
1
+ f
2
P
RFOUT
=
+2dBm/tone,
Df
= 1MHz
(Note 8)
P
RFOUT
= +5dBm
P
RFOUT
= +5dBm
1835MHz ±50MHz
1835MHz ±50MHz
f
RF
= 974MHz
f
RF
= 1835MHz
f
RF
= 2200MHz
SYMBOL
f
RF
= 974MHz
G
CONDITIONS
f
RF
= 1835MHz
f
RF
= 2200MHz
MIN
TYP
17.3
MAX
UNITS
dB
dB/°C
18.1
18.1
-0.007
0.22
0.03
0.03
0.03
0.1
dB
P-P
5.0
5.2
5.5
40.1
40.4
39.2
50
34.3
32.5
31.4
18.2
52
61
18
23
dBm
dBc
dBc
dB
dB
dBm
dBm
dB
dB
OIP3
P
-1dB
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Maxim Integrated
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3
MAX2092
700MHz to 2700MHz Analog VGA with Threshold
Alarm Circuit and Error Amplifier for Level Control
AC Electrical Characteristics (continued)
(Typical
Application Circuit
with analog attenuator set for maximum gain, V
CC
= 4.75V to 5.8V, f
RF
= 1835MHz, P
RFIN
= -16dBm
(CW), T
C
= -40°C to +95°C, and RF ports are connected to 50Ω sources and loads, unless otherwise noted. Typical values are at
T
C
= +25°C, V
CC
= 5.5V, P
RF_IN
= -16dBm, V
PLVLSET
= 2.5V, CTRL1 = 1, CTRL2 = 0. Min/max specifications apply over supply,
process, and temperature, unless otherwise noted.) (Notes 5, 7)
PARAMETER
Minimum Attenuator Control
Voltage
Maximum Attenuator Control
Voltage
Average Gain-Control Slope
Maximum Gain-Control Slope
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG ATTENUATOR (CTRL1 = 1, CTRL2 = 0)
Input = PLVLSET
Input = PLVLSET
V
PLVLSET
= 0.25V to 2.3V
V
PLVLSET
= 0 to 2.5V
0.25
2.3
19.4
27
V
V
dB/V
dB/V
Note 5: Production tested at
T
C
= +95°C. All other temperatures guaranteed by design and characterization.
Note 6:
Recommended functional range, not production tested. Operation outside this range is possible, but with degraded
performance of some parameters.
Note 7:
All limits include external component losses. Output measurements are taken at the RF port of the
Typical Application
Circuit.
Note 8:
It is advisable not to continuously operate the VGA RF-input above +12dBm.
Typical Operating Characteristics
(Typical
Application Circuit
with analog attenuator set to minimum attenuation, V
CC
= 4.75V to 5.8V, f
RF
= -16dBm, T
C
= -40°C to
+95°C, and RF ports are connected to 50Ω sources and loads, unless otherwise noted. Typical values are at T
C
= +25°C, V
CC
= 5.5V,
P
RF
= -16dBm, CTRL1 = 1, CTRL2 = 0, V
PLVLSET
= 2.5V, unless otherwise noted.)
GAIN OVER V
PLVLSET
SETTING
vs. RF FREQUENCY
MAX2092 toc02
GAIN vs. RF FREQUENCY
MAX2092 toc01
GAIN vs. RF FREQUENCY
20
V
CC
= 4.75V, 5.00V, 5.50V, 5.80V
18
GAIN (dB)
GAIN (dB)
5
-5
-15
25
15
T
C
= -40°C
T
C
= +25°C
18
GAIN (dB)
2.5V
2.0V
1.5V
16
T
C
= +95°C
1.0V
16
0.5V
0V
14
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
14
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
-25
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
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4
MAX2092 toc03
20
MAX2092
700MHz to 2700MHz Analog VGA with Threshold
Alarm Circuit and Error Amplifier for Level Control
Typical Operating Characteristics (continued)
(Typical
Application Circuit
with analog attenuator set to minimum attenuation, V
CC
= 4.75V to 5.8V, f
RF
= -16dBm, T
C
= -40°C to
+95°C, and RF ports are connected to 50Ω sources and loads, unless otherwise noted. Typical values are at T
C
= +25°C, V
CC
= 5.5V,
P
RF
= -16dBm, CTRL1 = 1, CTRL2 = 0, V
PLVLSET
= 2.5V, unless otherwise noted.)
GAIN vs. V
PLVLSET
SETTING
MAX2092 toc04
S11 vs. RF FREQUENCY
MAX2092 toc05
S11 vs. V
PLVLSET
SETTING
MAX2092 toc06
25
15
5
-5
2700MHz
-15
-25
0
700MHz, 974MHz, 1835MHz, 2200MHz
0.5
1.0
1.5
2.0
0
0
-10
S11 (dB)
2700MHz
-10
S11 (dB)
700MHz
T
C
= -40°C
GAIN (dB)
-20
T
C
= +25°C
-30
T
C
= +95°C
-40
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
2200MHz
-20
1835MHz
974MHz
-30
0
0.5
1.0
1.5
2.0
2.5
V
PLVLSET
(V)
2.5
V
PLVLSET
(V)
S22 vs. RF FREQUENCY
MAX2092 toc07
S22 vs. V
PLVLSET
SETTING
MAX2092 toc08
REVERSE-ISOLATION OVER V
PLVLSET
SETTING vs. RF FREQUENCY
MAX2092 toc09
0
0
2700MHz
2200MHz
700MHz
80
70
REVERSE-ISOLATION (dB)
-10
S22 (dB)
T
C
= -40°C
T
C
= +95°C
-10
S22 (dB)
-20
60
50
40
30
20
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
V
PLVLSET
= 0V
V
PLVLSET
= 2.5V
-20
-30
T
C
= +25°C
-40
700
1200
1700
2200
2700
RF FREQUENCY (MHz)
-30
0
0.5
1.0
1.5
2.0
2.5
V
PLVLSET
(V)
974MHz
1835MHz
GAIN vs. V
PLVLSET
SETTING
MAX2092 toc10
GAIN vs. V
PLVLSET
SETTING
MAX2092 toc11
GAIN vs. V
PLVLSET
SETTING
f
RF
= 700MHz
15
5
-5
-15
-25
T
C
= -40°C, +25°C, +95°C
MAX2092 toc12
25
f
RF
= 1835MHz
15
5
-5
-15
-25
0
0.5
1.0
1.5
2.0
T
C
= -40°C, +25°C, +95°C
25
f
RF
= 974MHz
15
5
-5
-15
-25
T
C
= -40°C, +25°C, +95°C
25
GAIN (dB)
GAIN (dB)
2.5
0
0.5
1.0
1.5
2.0
GAIN (dB)
2.5
0
0.5
1.0
1.5
2.0
2.5
V
PLVLSET
(V)
V
PLVLSET
(V)
V
PLVLSET
(V)
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