MAX2027EUP+-MAX2027EUP+TD Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX2027EUP+-MAX2027EUP+TD
IF Digitally Controlled Variable-Gain Amplifier
General Description
The MAX2027 high-performance, digitally controlled
variable-gain amplifier is designed for use from 50MHz
to 400MHz.
The device integrates a digitally controlled attenuator
and a high-linearity IF amplifier in one package.
Targeted for IF signal chains to adjust gain either
dynamically or as a one-time channel gain setting, the
MAX2027 is ideal for applications requiring high perfor-
mance. The attenuator provides 23dB of attenuation
range with ±0.05dB state-to-state accuracy.
The MAX2027 is available in a thermally enhanced 20-
pin TSSOP-EP package and operates over the -40°C to
+85°C temperature range.
Applications
Cellular Base Stations
Receiver Gain Control
Transmitter Gain Control
Broadband Systems
Automatic Test Equipment
Terrestrial Links
Features50MHz to 400MHz Frequency RangeVariable Gain: -8dB to +15dBOutput IP3: 35dBm (at All Gain Settings)Noise Figure: 4.7dB at Maximum GainDigitally Controlled Gain with 1dB Resolution and
±0.05dB State-to-State Accuracy
MAX2027
IF Digitally Controlled Variable-Gain Amplifier
MAX2027
ATTENUATION
LOGIC
CONTROL
AMP
BIAS
GND
GND
ATTNOUT
GNDGND
RF_IN
VCC
VCC
GND
AMPIN
IBIAS
ISETB2
GND
RF_OUT
VCCB0
Pin Configuration/
Functional Diagram
Ordering Information
19-2601; Rev 1; 2/04
PARTTEMP RANGEPIN-PACKAGE
MAX2027EUP-T-40°C to +85°C20 TSSOP-EP*
*EP = exposed pad.
MAX2027
IF Digitally Controlled Variable-Gain Amplifier
ABSOLUTE MAXIMUM RATINGS
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.
All Pins Input Voltage (except AMPIN, IBIAS, and ISET)
to GND................................................................-0.3V to +5.5V
Input Voltage Levels (B0–B4).....................-0.3V to (VCC+ 0.5V)
Input Voltage Levels (AMPIN and IBIAS)................-0.3V to +1.5V
Input Voltage Levels (ISET)....................................-0.3V to +1.0V
RF Input Signal.................................................................20dBm
RF Output Signal...............................................................22dBm
Continuous Power Dissipation (TA= +70°C)
20-Pin TSSOP-EP
(derate 21.7mW/°C above +70°C)..................................1.7W
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10s).................................+300°C
DC ELECTRICAL CHARACTERISTICS
(Typical application circuit, VCC= +4.75V to +5.25V, GND = 0V. No RF signals applied, and RF input and output ports are terminated
with 50Ω. R1= 825Ω, TA= -40°C to +85°C. Typical values are at VCC= +5V and TA= +25°C, unless otherwise noted.) (Notes 1, 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SUPPLY
Supply VoltageVCC4.755.005.25V
Supply CurrentICC6075mA
ISET CurrentISET0.9mA
CONTROL INPUTS/OUTPUTS
Control BitsParallel5Bits
Input Logic High(Note 3)2V
Input Logic Low0.6V
Input Leakage Current-1.2+1.2µA
MAX2027
IF Digitally Controlled Variable-Gain Amplifier
AC ELECTRICAL CHARACTERISTICS
(Typical application circuitwithout matching, VCC= +4.75V to +5.25V, GND = 0V, max gain (B0 = B1 = B2 = B3 = B4 = 0), R1
825Ω, POUT= 5dBm, fIN= 50MHz, 50ΩRF system impedance. Typical values are at VCC= +5V and TA= +25°C, unless otherwise
noted.) (Notes 1, 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Frequency RangefR50400MHz
GainGNo attenuation15.5dB
Noise FigureNFMax gain4.7dB
Minimum Reverse IsolationMax gain22dB
Output 1dB Compression PointP1dBMax gain20.6dBm
2nd-Order Output Intercept PointOIP2f1 + f2, f1 = 50MHz, f2 = 51MHz, 5dBm/tone42dBm
3rd-Order Output Intercept PointOIP3All gain conditions, 5dBm/tone34.7dBm
2nd Harmonic2fIN-44dBc
3rd Harmonic3fIN-68dBc
RF Gain-Control Range23dB
Gain-Control Resolution1dB
Attenuation Absolute AccuracyCompared to the ideal expected
attenuation
0.15/
-0.05dB
Attenuation Relative AccuracyBetween adjacent states±0.05dB
Gain Drift Over TemperatureTA = -40°C to +85°C±0.1dB
Peak-to-peak for all settings,
FCENTER = 75MHz0.1
Gain Flatness Over 50MHz BW
Peak-to-peak for all settings,
FCENTER = 200MHz0.2
Attenuator Switching Time50% control to 90% RF40ns
Input Return LossfR = 50MHz to 250MHz, all gain conditions15dB
Output Return LossfR = 50MHz to 250MHz, all gain conditions15dB
Note 1:Guaranteed by design and characterization.
Note 2:All limits reflect losses of external components. Output measurements are taken at RF OUT using the typical application
circuit.
MAX2027
IF Digitally Controlled Variable-Gain Amplifier
Typical Operating Characteristics
(Typical application circuit, VCC= 5.0V, max gain (B0 = B1 = B2 = B3 = B4 = 0), POUT= 5dBm, R1= 825Ω, TA= +25°C, unless
otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
MAX2027 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)65-25-105352050
VCC = 5.25V
VCC = 5.0V
VCC = 4.75V
INPUT RETURN LOSS
vs. RF FREQUENCY (ALL STATES)
MAX2027 toc02
FREQUENCY (MHz)
INPUT RETURN LOSS (dB)
OUTPUT RETURN LOSS
vs. RF FREQUENCY (ALL STATES)
MAX2027 toc03
FREQUENCY (MHz)
OUTPUT RETURN LOSS (dB)
GAIN vs. RF FREQUENCY
(ALL STATES)
MAX2027 toc04
FREQUENCY (MHz)
GAIN (dB)
REVERSE ISOLATION vs. FREQUENCY
MAX2027 toc05
FREQUENCY (MHz)
REVERSE ISOLATION (dB)
GAIN vs. FREQUENCY
MAX2027 toc06
GAIN (dB)
TA = -40°C
TA = +25°C
TA = +85°C
GAIN vs. FREQUENCY
MAX2027 toc07
GAIN (dB)
VCC = 4.75V, 5.0V, AND 5.25V
MAX2027
IF Digitally Controlled Variable-Gain Amplifier
ATTENUATION ABSOLUTE ACCURACY
(ALL STATES)
MAX2027 toc08
FREQUENCY (MHz)
ABSOLUTE ACCURACY (dB)
ATTENUATION RELATIVE ACCURACY
(ALL STATES)
MAX2027 toc09
FREQUENCY (MHz)
RELATIVE ACCURACY (dB)
NOISE FIGURE vs. FREQUENCY
MAX2027 toc10
FREQUENCY (MHz)
NOISE FIGURE (dB)
TA = +25°C
TA = +85°C
TA = -40°C
OUTPUT P-1dB vs. FREQUENCY
MAX2027 toc11
FREQUENCY (MHz)
OUTPUT P-1dB (dBm)
TA = +85°C
TA = -40°C
TA = +25°C
OUTPUT P-1dB vs. FREQUENCY
MAX2027 toc12
FREQUENCY (MHz)
OUTPUT P-1dB (dBm)
VCC = +5.25V
VCC= +4.75VVCC = +5V
OUTPUT IP3 vs. FREQUENCY
MAX2027 toc13
FREQUENCY (MHz)
OIP3 (dBm)
TA = -40°C
TA = +85°C
TA = +25°C
PRF1 = PRF2 = 5dBm
AT OUTPUT, ∆f = 1MHz
OUTPUT IP3 vs. FREQUENCY
MAX2027 toc14
FREQUENCY (MHz)
OIP3 (dBm)
VCC = +5.25V
VCC = +5VVCC = +4.75V
PRF1 = PRF2 = 5dBm
AT OUTPUT, ∆f = 1MHz
Typical Operating Characteristics (continued)
(Typical application circuit, VCC= 5.0V, max gain (B0 = B1 = B2 = B3 = B4 = 0), POUT= 5dBm, R1= 825Ω, TA= +25°C, unless
otherwise noted.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX2027EUP+ \|MAX2027EUP	MAXIM	N/a	75	avai	IF Digitally Controlled Variable-Gain Amplifier
MAX2027EUP+TD \|MAX2027EUPTD	MAXIM	N/a	8158	avai	IF Digitally Controlled Variable-Gain Amplifier