Maxim MAX2653EUB, MAX2652EUB, MAX2651EUB Datasheet
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General Description
The MAX2651/MAX2652/MAX2653 silicon germanium
(SiGe), low-noise amplifiers (LNAs) are intended for use
in GSM900, DCS1800, and PCS1900 band wireless
handsets. The MAX2651/MAX2652 consist of two LNAs,
one optimized for the GSM900 band and the other optimized for the DCS1800/PCS1900 bands. They feature a
band-select pin to switch between the two LNAs, as well
as a gain-step input to reduce the gain of each LNA by
20dB and reduce supply current. The MAX2652 is functionally equivalent to the MAX2651, but features a lowpower shutdown mode. The MAX2653 consists of a
single LNA optimized for the DCS1800 and PCS1900
bands, and has a shutdown feature and a 20dB gain
step.
The MAX2652 and MAX2653 together form an ideal
solution for triple-band phone applications (GSM, DCS,
and PCS bands).
The MAX2651/MAX2652/MAX2653 are fabricated using
an advanced high-frequency SiGe bipolar process. As
a result, all devices provide low noise figure, high gain,
and high input third-order intercept point (IP3) performance at the GSM, DCS, and PCS bands. A pull-up
resistor to VCCat each LNA output allows for gain
adjustability. A minimal number of external components
are needed for input and output matching, helping to
reduce board space.
The MAX2651/MAX2652 are packaged in a 10-pin µMAX,
while the MAX2653 is packaged in an 8-pin µMAX. All
devices operate from a single +2.7V to +3.3V supply.
Applications
GSM900/DCS1800 Dual-Band Phones
GSM900/DCS1800/PCS1900 Triple-Band Phones
DCS1800 or PCS1900 Single-Mode Phones
IS-136 TDMA Dual-Band Phones
Features
♦ Wide Operating Frequency Range
800MHz to 1000MHz (MAX2651/52)
1800MHz to 2000MHz (MAX2651/52/53)
♦ Excellent Low-Noise Performance
1.2dB/1.3dB over GSM Receive Band
(MAX2651/52)
1.8dB/1.8dB/1.7dB over DCS Receive Band
(MAX2651/52/53)
♦ High Gain
18dB over GSM Receive Band (MAX2651/52)
18dB/17.5dB/18.5dB over DCS Receive Band
(MAX2651/52/53)
♦ 20dB Gain Reduction in Low-Gain Mode
♦ Externally Adjustable Gain
♦ +2.7V to +3.3V Single-Supply Operation
♦ Low Supply Current
5.4mA to 7.0mA in High-Gain Mode
2.2mA in Low-Gain Mode
♦ 0.25µA Shutdown Current (MAX2652/53)
MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
________________________________________________________________ Maxim Integrated Products 1
19-1506; Rev 1; 10/99
PART
MAX2651EUB
MAX2652EUB
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE PIN-PACKAGE
10 µMAX
10 µMAX
Pin Configurations/Functional Diagrams
Ordering Information
10
9
8
7
6
1
2
3
4
5
SHDN (GND) GAIN
GSMOUT
V
CC
DCSOUT
GND
GND
DCSIN
BAND
GSMIN
DC BIAS
CONTROL
MAX2651
MAX2652
HIGH
LOW
LOW
HIGH
8
7
6
5
1
2
3
4
SHDN GAIN
V
CC
DCSOUT
GND
DCSIN
GND
GND
HIGH
LOW
MAX2653
DC BIAS
CONTROL
MAX2653EUA
-40°C to +85°C 8 µMAX
( ) ARE FOR MAX2651.
MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS—MAX2651
(VCC= +2.7V to +3.3V, BAND = GAIN = VCC, no input signal, all input/output ports terminated in 50Ω, TA= -40°C to +85°C, unless
otherwise noted. Typical values are at V
CC
= +3V, TA= +25°C.) (Note 1)
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.
VCCto GND..............................................................-0.3V to +6V
SHDN, GAIN, BAND to GND......................-0.3V to (V
CC
+ 0.3V)
GSMIN, DCSIN ..........................................1.0V peak (+10dBm)
Input Current (all digital inputs) .......................................±10mA
Continuous Power Dissipation
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ............444mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = VCC)
VIN= GND
VIN= V
CC
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
GSM band, low-gain mode
(BAND = GND, GAIN = VCC)
CONDITIONS
2.2 3.3
5.7 8.7
I
CC
V
2.7 3.3
V
CC
Input Voltage Range
Input Supply Current
µA
-1.5
I
IL
Input Logic Low Current
µA
1.5
I
IH
Input Logic High Current
5.9 9.6
2.2 3.6
V1.5V
IH
Input Logic Threshold High
V
0.5
V
IL
Input Logic Threshold Low
UNITSMIN TYP MAXSYMBOLPARAMETER
mA
DCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = VCC)
VIN= GND
VIN= V
CC
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
GSM band, low-gain mode
(BAND = GND, GAIN = VCC)
CONDITIONS
mA
2.3 3.6
7.0 11.0
I
CC
V
2.7 3.3
V
CC
Input Voltage Range
Input Supply Current
µA
-1.5
I
IL
Input Logic Low Current
µA
1.5
I
IH
Input Logic High Current
7.2 11.0
2.4 3.7
V1.5V
IH
Input Logic Threshold High
V
0.5
V
IL
Input Logic Threshold Low
UNITSMIN TYP MAXSYMBOLPARAMETER
DC ELECTRICAL CHARACTERISTICS—MAX2652
(VCC= +2.7V to +3.3V, BAND = GAIN = VCC, no input signal, all input/output ports terminated in 50Ω, TA= -40°C to +85°C, unless
otherwise noted. Typical values are at V
CC
= +3V, TA= +25°C.) (Note 1)
SHDN = GND
µA0.25Shutdown Supply Current
MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS—MAX2653
(VCC= +2.7V to +3.3V, SHDN = GAIN = VCC, no input signal, all input/output ports terminated in 50Ω, TA= -40°C to +85°C, unless
otherwise noted. Typical values are at V
CC
= +3V, TA= +25°C.) (Note 1)
DCS band, low-gain mode (GAIN = GND)
DCS band, high-gain mode (GAIN = VCC)
VIN= V
CC
VIN= GND
CONDITIONS
2.2 3.2
mA
5.4 8.5
I
CC
V
2.7 3.3
V
CC
Input Voltage Range
Input Supply Current
V
1.5
V
IH
Input Logic Threshold High
V
0.5
V
IL
Input Logic Threshold Low
µA
3
I
IH
Input Logic High Current
µA
-1.5
I
IL
Input Logic Low Current
UNITSMIN TYP MAXSYMBOLPARAMETER
Note 1: Devices are production tested at TA= +25°C. Minimum and maximum limits are guaranteed by design and characterization.
SHDN = GND
µA
0.25
I
SHDN
Shutdown Supply Current
AC ELECTRICAL CHARACTERISTICS—MAX2651
(MAX2651 EV kit, f
IN
= 945MHz (GSM band), fIN= 1850MHz (DCS band), PIN= -30dBm, input and output matching networks are
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
CC
= +3V, TA= +25°C, unless otherwise noted.)
(Note 2)
-4 0
16 20
-4 0
16 20
TA= -40°C to +85°C
TA= -40°C to +85°C
TA= -40°C to +85°C
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
MIN TYP MAX UNITS
Noise Figure (Note 4)
1.8 2.05
-3.5 -2 -0.5
16.5 18 19.5
-3.5 -2 -0.5
5.5 6.0
1.2 1.4
5.3 6.7
Input Frequency Range
(Note 3)
f
IN
1805 1880
925 960
Power Gain (Note 4)
16.5 18 19.5
CONDITIONS
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
DCS band, low-gain
mode (BAND = VCC,
GAIN = GND)
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band (BAND = VCC)
GSM band (BAND = GND)
DCS band, high-gain
mode (BAND = GAIN =
V
CC
)
GSM band, high-gain
mode (BAND = GND,
GAIN = V
CC
)
TA= -40°C to +85°C
GSM band, low-gain
mode (BAND = GAIN =
GND)
MHz
dB
dB
NF
G
PARAMETER SYMBOL
MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS—MAX2651 (continued)
(MAX2651 EV kit, f
IN
= 945MHz (GSM band), fIN= 1850MHz (DCS band), PIN= -30dBm, input and output matching networks are
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
CC
= +3V, TA= +25°C, unless otherwise noted.)
(Note 2)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
GSM band, low-gain mode
(BAND = GAIN = GND)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
DCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
Reverse Isolation
-19 -15
-12 -10
dB
-14 -10
S
22
2
Output Return Loss
-20 -15
-11 -8.5
-14 -12
dB
-11 -8.5
S
11
2
Input Return Loss
GSM band, low-gain mode
(BAND = GAIN = GND)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
DCS band, low-gain mode
(BAND = V
CC
, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
GSM band, low-gain mode
(BAND = GAIN = GND)
-22 -20
-39 -35
-20 -18
dB
-32 -29
S
12
2
-20 -15
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
(Note 5)
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
-10.5 -8.5
-20 -18
-9.5 -8
dBmIP
-1dB
Input 1dB Compression Point
dBm
-11.5 -10
IIP3Input Third-Order Intercept Point
DCS band, high-gain mode
(BAND = GAIN = VCC)
DCS band, high-gain mode
(BAND = GAIN = VCC)
-1.5 0.5
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
(Note 6)
-10.5 -8.5
-2.5 0.5
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
-20 -18
MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
_______________________________________________________________________________________ 5
AC ELECTRICAL CHARACTERISTICS—MAX2652
(MAX2652 EV kit, f
IN
= 945MHz (GSM band), fIN= 1850MHz (DCS band), PIN= -30dBm, input and output matching networks are
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
CC
= +3V, TA= +25°C, unless otherwise noted.)
(Note 2)
1805 1880
925 960
16 17.5 19
15.5 19.5
-3.5 -2 -0.5
-4 0
16.5 18 19.5
16 20
-4.0 -2 -0.5
1.3 1.5
1.8 2.0
5.8 6.3
5.5 6.7
-10 -8.5
IIP3
Input Third-Order
Intercept Point
IP
-1dB
Input 1dB Compression
Point
(Note 6)
(Note 5)
SYMBOL
TA= -40°C to +85°C
DCS band, high-gain mode
(BAND = GAIN = VCC)
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
DCS band, high-gain mode
(BAND = GAIN = V
CC
)
f
IN
G
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
-18 -16.5
GSM band (BAND = GND)
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
GSM band, high-gain mode
(BAND = GND, GAIN = V
CC
)
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
-18 -16.5
-10.5 -8
-8.5 -7
0 1.5
DCS band, low-gain mode
(BAND = VCC, GAIN = GND)
-9 -7.5
0.5 2.5
GSM band, high-gain mode
(BAND = GND, GAIN = VCC)
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
DCS band (BAND = VCC)
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band, low-gain
mode (BAND = V
CC
,
GAIN = GND)
GSM band, high-gain
mode (BAND = GND,
GAIN = VCC)
GSM band, low-gain
mode (BAND = GAIN =
GND)
CONDITIONS
Power Gain (Note 4)
Input Frequency Range
(Note 3)
NFNoise Figure (Note 4)
MIN TYP MAX
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
TA= -40°C to +85°C
TA= -40°C to +85°C
TA= -40°C to +85°C
PARAMETER
DCS band, high-gain
mode (BAND = GAIN =
V
CC
)
-4.5 0
MHz
dBm
dBm
dB
dB
UNITS
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