MAX2653EUA+ [MAXIM]
Narrow Band Low Power Amplifier, 1805MHz Min, 1880MHz Max, 8UMAX, 8 PIN;
| 型号： | MAX2653EUA+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Narrow Band Low Power Amplifier, 1805MHz Min, 1880MHz Max, 8UMAX, 8 PIN |
| 文件： | 总16页 (文件大小：311K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1506; Rev 2; 8/03
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
General Description
Features
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 opti-
mized 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 func-
tionally equivalent to the MAX2651, but features a low-
power 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.
ꢀ 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)
The MAX2652 and MAX2653 together form an ideal
solution for triple-band phone applications (GSM, DCS,
and PCS bands).
ꢀ 20dB Gain Reduction in Low-Gain Mode
ꢀ Externally Adjustable Gain
ꢀ +2.7V to +3.3V Single-Supply Operation
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) perfor-
mance at the GSM, DCS, and PCS bands. A pull-up
ꢀ Low Supply Current
5.4mA to 7.0mA in High-Gain Mode
2.2mA in Low-Gain Mode
ꢀ 0.25µA Shutdown Current (MAX2652/53)
resistor to V
at each LNA output allows for gain
CC
adjustability. A minimal number of external components
are needed for input and output matching, helping to
reduce board space.
Ordering Information
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.
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
MAX2651EUB
MAX2652EUB
MAX2653EUA
Applications
GSM900/DCS1800 Dual-Band Phones
10 µMAX
8 µMAX
GSM900/DCS1800/PCS1900 Triple-Band Phones
DCS1800 or PCS1900 Single-Mode Phones
IS-136 TDMA Dual-Band Phones
Pin Configurations/Functional Diagrams
SHDN (GND)
GSMIN
GND
1
2
3
4
5
10 GAIN
HIGH
HIGH
SHDN
GND
1
2
3
4
8
7
6
5
GAIN
9
8
7
6
GSMOUT
LOW
LOW
DC BIAS
V
CC
DC BIAS
CONTROL
V
CC
CONTROL
DCSIN
GND
DCSOUT
GND
LOW
DCSIN
DCSOUT
GND
HIGH
BAND
MAX2653
MAX2651
MAX2652
( ) ARE FOR MAX2651.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
ABSOLUTE MAXIMUM RATINGS
CC
SHDN, GAIN, BAND to GND......................-0.3V to (V
GSMIN, DCSIN ..........................................1.0V peak (+10dBm)
Input Current (all digital inputs) ....................................... 10mA
Continuous Power Dissipation
V
to GND..............................................................-0.3V to +6V
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, 10s) .................................+300°C
+ 0.3V)
CC
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
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.
CAUTION! ESD SENSITIVE DEVICE
DC ELECTRICAL CHARACTERISTICS—MAX2651
(V
= +2.7V to +3.3V, BAND = GAIN = V , no input signal, all input/output ports terminated in 50Ω, T = -40°C to +85°C, unless
CC
CC A
= +3V, T = +25°C.) (Note 1)
A
otherwise noted. Typical values are at V
CC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
V
CC
2.7
3.3
V
DCS band, high-gain mode
5.7
2.2
5.9
2.2
8.7
3.3
9.6
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
Input Supply Current
I
mA
CC
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
)
CC
GSM band, low-gain mode
(BAND = GND, GAIN = V
3.6
1.5
CC
Input Logic Threshold High
Input Logic Threshold Low
Input Logic High Current
Input Logic Low Current
V
V
V
IH
V
0.5
IL
I
IH
V
V
= V
CC
1.5
µA
µA
IN
I
IL
= GND
-1.5
IN
DC ELECTRICAL CHARACTERISTICS—MAX2652
(V
= +2.7V to +3.3V, BAND = GAIN = V , no input signal, all input/output ports terminated in 50Ω, T = -40°C to +85°C, unless
CC
CC A
= +3V, T = +25°C.) (Note 1)
A
otherwise noted. Typical values are at V
CC
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
V
CC
2.7
3.3
V
DCS band, high-gain mode
7.0
2.3
7.2
11.0
3.6
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
Input Supply Current
I
mA
µA
CC
GSM band, high-gain mode
11.0
3.7
(BAND = GND, GAIN = V
)
)
CC
GSM band, low-gain mode
2.4
(BAND = GND, GAIN = V
CC
Shutdown Supply Current
0.25
SHDN = GND
2
_______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
DC ELECTRICAL CHARACTERISTICS—MAX2653
(V
= +2.7V to +3.3V, SHDN = GAIN = V , no input signal, all input/output ports terminated in 50Ω, T = -40°C to +85°C, unless
CC
CC A
= +3V, T = +25°C.) (Note 1)
A
otherwise noted. Typical values are at V
CC
PARAMETER
Input Logic Threshold High
Input Logic Threshold Low
Input Logic High Current
Input Logic Low Current
Input Voltage Range
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
IH
1.5
V
V
V
IL
0.5
I
IH
V
V
= V
CC
1.5
µA
µA
V
IN
I
IL
= GND
-1.5
2.7
IN
V
CC
3.3
8.5
3.2
DCS band, high-gain mode (GAIN = V
)
5.4
2.2
CC
Input Supply Current
I
mA
CC
DCS band, low-gain mode (GAIN = GND)
Shutdown Supply Current
Input Logic Threshold High
Input Logic Threshold Low
Input Logic High Current
Input Logic Low Current
I
0.25
µA
V
SHDN = GND
SHDN
V
IH
1.5
3
V
IL
0.5
V
I
IH
V
V
= V
CC
µA
µA
IN
I
IL
= GND
-1.5
IN
Note 1: Devices are production tested at T = +25°C. Minimum and maximum limits are guaranteed by design and characterization.
A
AC ELECTRICAL CHARACTERISTICS—MAX2651
(MAX2651 EV kit, f = 945MHz (GSM band), f = 1850MHz (DCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
= +3V, T = +25°C, unless otherwise noted.)
CC
A
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
DCS band (BAND = V
GSM band (BAND = GND)
MIN
1805
925
TYP
MAX
1880
960
UNITS
)
Input Frequency Range
(Note 3)
CC
f
IN
MHz
DCS band, high-gain
mode (BAND = GAIN =
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
16.5
16
18
-2
19.5
20
= -40°C to +85°C
= +25°C
V
CC
)
DCS band, low-gain
-3.5
-4
-0.5
0
mode (BAND = V
GAIN = GND)
,
CC
= -40°C to +85°C
= +25°C
Power Gain (Note 4)
G
dB
GSM band, high-gain
mode (BAND = GND,
16.5
16
18
-2
19.5
20
= -40°C to +85°C
= +25°C
GAIN = V
)
CC
GSM band, low-gain
mode (BAND = GAIN =
GND)
-3.5
-4
-0.5
0
= -40°C to +85°C
DCS band, high-gain mode
1.8
5.5
1.2
5.3
2.05
6.0
1.4
6.7
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
Noise Figure (Note 4)
NF
dB
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
_______________________________________________________________________________________
3
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS—MAX2651 (continued)
(MAX2651 EV kit, f = 945MHz (GSM band), f = 1850MHz (DCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
= +3V, T = +25°C, unless otherwise noted.)
CC
A
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
DCS band, high-gain mode
(BAND = GAIN = V
MIN
TYP
MAX
UNITS
-11.5
-10
)
CC
(Note 5)
(Note 6)
DCS band, low-gain mode
-1.5
-10.5
-2.5
-20
0.5
-8.5
0.5
-18
-8
(BAND = V , GAIN = GND)
CC
Input Third-Order Intercept Point
IIP3
dBm
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
-9.5
-20
(BAND = V , GAIN = GND)
CC
Input 1dB Compression Point
IP
dBm
-1dB
GSM band, high-gain mode
-18
-8.5
-11
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
-10.5
DCS band, high-gain mode
-8.5
-12
-8.5
-15
-10
-10
-15
-15
-29
-18
-35
-20
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
-14
-11
-20
-14
-12
-19
-20
-32
-20
-39
-22
(BAND = V , GAIN = GND)
CC
2
2
2
Input Return Loss
S
11
S
22
S
12
dB
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
Output Return Loss
dB
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
Reverse Isolation
dB
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
4
_______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS—MAX2652
(MAX2652 EV kit, f = 945MHz (GSM band), f = 1850MHz (DCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
= +3V, T = +25°C, unless otherwise noted.)
CC
A
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
DCS band (BAND = V
GSM band (BAND = GND)
MIN
1805
925
TYP
MAX UNITS
)
1880
MHz
960
Input Frequency Range
(Note 3)
CC
f
IN
DCS band, high-gain
mode (BAND = GAIN =
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
16
15.5
-3.5
-4
17.5
-2
19
= -40°C to +85°C
= +25°C
19.5
-0.5
V
CC
)
DCS band, low-gain
mode (BAND = V
GAIN = GND)
,
CC
= -40°C to +85°C
= +25°C
0
Power Gain (Note 4)
G
dB
GSM band, high-gain
mode (BAND = GND,
16.5
16
18
-2
19.5
= -40°C to +85°C
= +25°C
20
-0.5
0
GAIN = V
)
CC
GSM band, low-gain
mode (BAND = GAIN =
GND)
-4.0
-4.5
= -40°C to +85°C
DCS band, high-gain mode
1.8
5.8
1.3
5.5
-7
2.0
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
6.3
dB
(BAND = V , GAIN = GND)
CC
Noise Figure (Note 4)
NF
GSM band, high-gain mode
1.5
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
6.7
DCS band, high-gain mode
(BAND = GAIN = V
-8.5
0
)
CC
(Note 5)
DCS band, low-gain mode
1.5
-7.5
2.5
(BAND = V , GAIN = GND)
CC
Input Third-Order
Intercept Point
dBm
IIP3
GSM band, high-gain mode
-9
(BAND = GND, GAIN = V
)
CC
(Note 6)
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
0.5
-18
-10.5
-18
-10
-16.5
-8
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
Input 1dB Compression
Point
CC
dBm
IP
-1dB
GSM band, high-gain mode
-16.5
-8.5
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GND, GAIN = GND)
_______________________________________________________________________________________
5
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS—MAX2652 (continued)
(MAX2652 EV kit, f = 945MHz (GSM band), f = 1850MHz (DCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
= +3V, T = +25°C, unless otherwise noted.)
CC
A
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
DCS band, high-gain mode
-12
-9.5
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
-12
-11
-20
-11
-17
-12.5
-15
-29
-19
-37
-23
-9.5
-9.5
-15
-9.5
-13
-11
-13
-26
-17
-34
-20
(BAND = V , GAIN = GND)
CC
2
dB
Input Return Loss
S
11
S
22
S
12
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
2
dB
Output Return Loss
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
DCS band, high-gain mode
(BAND = GAIN = V
)
CC
DCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
2
Reverse Isolation
dB
GSM band, high-gain mode
(BAND = GND, GAIN = V
)
CC
GSM band, low-gain mode
(BAND = GAIN = GND)
6
_______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS—MAX2653
(MAX2653 EV kit, f = 1850MHz (DCS band), f = 1960MHz (PCS band), P = -30dBm, input and output matching networks are
IN
IN
IN
optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V
noted.) (Note 2)
= +3V, T = +25°C, unless otherwise
CC
A
PARAMETER
SYMBOL
CONDITIONS
DCS band
PCS band
MIN
1805
1930
TYP
MAX
1880
1990
UNITS
Input Frequency Range
(Note 3)
f
IN
BAND = V
MHz
CC
DCS and PCS band,
high-gain mode
T
A
T
A
T
A
T
A
= +25°C
17
16
-4
18.5
-2.5
20
20
-1
0
= -40°C to +85°C
= +25°C
(BAND = GAIN = V
)
CC
Power Gain (Note 4)
Noise Figure (Note 4)
G
dB
DCS and PCS band,
low-gain mode (BAND =
, GAIN = GND)
= -40°C to +85°C
-4
V
CC
DCS band
PCS band
1.7
1.8
1.9
High-gain mode
(BAND = GAIN = V
)
CC
2.05
NF
dB
dBm
dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
5.3
-8.5
+1.5
-18
-7
6.7
CC
DCS and PCS band, high-gain mode
(BAND = V , GAIN = GND)
-10.5
-1
Input Third-Order
Intercept Point
(Notes 5, 7)
CC
IIP3
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
-20
-9
(BAND = GAIN = V
)
CC
Input 1dB Compression
Point
IP
-1dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
-11
-11
-12
-15
-8.5
-9.5
-9.5
-12
(BAND = GAIN = V
)
CC
2
Input Return Loss
Output Return Loss
Reverse Isolation
S
dB
11
22
12
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS and PCS band, high-gain mode
(BAND = GAIN = V
)
CC
2
2
S
S
dB
DCS and PCS band, low-gain mode
(BAND = V , GAIN = GND)
CC
DCS band
-35
-33
-21
-21
-31
-29
-18
-18
High-gain mode (BAND
= GAIN = V
)
CC
PCS band
DCS band
PCS band
dB
Low-gain mode (BAND =
, GAIN = GND)
V
CC
Note 2: Minimum and maximum limits are guaranteed by design and characterization, but not production tested.
Note 3: The part has been fully characterized at the specified frequency range. Operation outside of this range is possible but not
guaranteed.
Note 4: Specification excludes circuit board losses.
Note 5: Measured with two tones, f
Note 6: Measured with two tones, f
Note 7: Measured with two tones, f
= 1850MHz, f
= 1850.8MHz, P = -33dBm for each tone.
= 945.8MHz, P = -33dBm for each tone.
IN
IN1
IN1
IN1
IN2 IN
= 945MHz, f
IN2
= 1960MHz, f
= 1960.8MHz, P = -33dBm for each tone.
IN2
IN
_______________________________________________________________________________________
7
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Typical Operating Characteristics
(MAX2651 EV kit, V = +3.0V, input and output matched with recommended matching networks, T = +25°C, unless otherwise noted.)
CC
A
MAX2651 (GSM Band)
INPUT RETURN LOSS
vs. FREQUENCY
POWER GAIN vs. INPUT POWER
POWER GAIN vs. FREQUENCY
MA\X2651-01
-1
-3
20
18
0
20
10
HIGH GAIN
LOW GAIN
-5
LOW GAIN
HIGH GAIN
LOW GAIN
16
14
-5
-7
-10
-15
-20
-25
HIGH GAIN
0
-10
-20
-9
12
10
f
= 945MHz
IN
-11
-25
-20
-15
P
-10
-5
0
800
840
880
920
960
1000
800
840
880
920
960
1000
(dBm)
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
OUTPUT RETURN LOSS
vs. FREQUENCY
REVERSE ISOLATION vs. FREQUENCY
0
-10
-20
-30
-40
0
-5
-10
HIGH GAIN
LOW GAIN
HIGH GAIN
-15
-20
-25
LOW GAIN
800
840
880
920
960
1000
800
840
880
920
960
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT vs. V HIGH GAIN
CC
SUPPLY CURRENT vs. V LOW GAIN
CC
8
7
6
5
4
3.0
2.5
2.0
1.5
1.0
NO INPUT SIGNAL
T
= +85°C
A
T
= +85°C
A
T
= +25°C
A
T
= +25°C
A
T
= -40°C
3.2
A
T
= -40°C
A
NO INPUT SIGNAL
2.8 2.9
2.7
2.8
2.9
V
3.0
(V)
3.1
3.3
2.7
3.0
(V)
3.1
3.2
3.3
V
CC
CC
8
_______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(MAX2651 EV kit, V = +3.0V, input and output matched with recommended matching networks, T = +25°C, unless otherwise noted.)
CC
A
MAX2651 (DCS Band)
INPUT RETURN LOSS
vs. FREQUENCY
POWER GAIN vs. FREQUENCY
POWER GAIN vs. INPUT POWER
MA\X2651-08
0
0
19
17
20
10
LOW GAIN
-2
HIGH GAIN
LOW GAIN
HIGH GAIN
-10
15
13
-4
-6
HIGH GAIN
0
-10
-20
LOW GAIN
-20
-8
11
9
f = 1840MHz
-20
-10
1800
1840
1880
1920
1960
2000
1800
1840
1880
1920
1960
2000
-25
-15
P
-10
(dBm)
-5
0
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
OUTPUT RETURN LOSS
vs. FREQUENCY
REVERSE ISOLATION vs. FREQUENCY
0
0
-10
-10
-20
HIGH GAIN
LOW GAIN
HIGH GAIN
-20
-30
-40
LOW GAIN
1800
1840
1880
1920
1960
2000
1800
1840
1880
1920
1960
2000
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT vs. V HIGH GAIN
CC
SUPPLY CURRENT vs. V LOW GAIN
CC
8
7
6
5
4
3.0
2.5
2.0
1.5
1.0
T
= +85°C
A
NO INPUT SIGNAL
T
= +85°C
A
T
= +25°C
A
T
= +25°C
A
T
= -40°C
T
= -40°C
A
A
NO INPUT SIGNAL
2.8 2.9
2.7
2.8
2.9
V
3.0
(V)
3.1
3.2
3.3
2.7
3.0
(V)
3.1
3.2
3.3
V
CC
CC
_______________________________________________________________________________________
9
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(MAX2652 EV kit, V = +3.0V, input and output matched with recommended matching networks, T = +25°C, unless otherwise noted.)
CC
A
MAX2652 (GSM Band)
INPUT RETURN LOSS
vs. FREQUENCY
POWER GAIN vs. FREQUENCY
POWER GAIN vs. INPUT POWER
MA\X2652-01
-2
-4
20
18
0
LOW GAIN
20
10
-10
HIGH GAIN
LOW GAIN
HIGH GAIN
HIGH GAIN
-6
16
14
-20
-30
-40
-50
LOW GAIN
0
-10
-20
-8
-10
-12
-14
12
10
8
f = 945MHz
-20
800
840
880
920
960
1000
-25
-15
P
-10
(dBm)
-5
0
800
840
880
920
960
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
OUTPUT RETURN LOSS
vs. FREQUENCY
HIGH-GAIN MODE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
REVERSE ISOLATION vs. FREQUENCY
0
0
-10
-20
-30
-40
-50
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
T
= +85°C
= +25°C
A
HIGH GAIN
-10
-20
-30
-40
-50
LOW GAIN
HIGH GAIN
T
T
A
LOW GAIN
NO INPUT SIGNAL
= -40°C
A
800
840
880
920
960
1000
800
840
880
920
960
1000
2.7
2.8
2.9
3.0
3.1
3.2
3.3
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY VOLTAGE (V)
LOW-GAIN MODE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
INPUT P1dB vs. SUPPLY VOLTAGE
INPUT IP3 vs. SUPPLY VOLTAGE
3.5
3.0
-6
-8
5
3
T
= +85°C
A
LOW GAIN
LOW GAIN
T
= +25°C
= -40°C
A
T
= -40°C
A
1
-1
-10
-12
-14
-16
-18
-20
T
= +85°C
A
T
T
A
= +25°C
A
2.5
2.0
T
= +85°C
A
-3
T
= +25°C
HIGH GAIN
A
HIGH GAIN
T
= +85°C
= +25°C
A
A
T
= +85°C
A
-5
T
T
= -40°C
A
-7
T
T
= +25°C
= -40°C
2.8
1.5
1.0
A
-9
NO INPUT SIGNAL
A
T
= -40°C
A
-11
2.7
2.8
2.9
3.0
3.1
3.2
3.3
2.7
2.9
3.0
3.1
3.2
3.3
2.7
2.8
2.9
3.0
3.1
3.2
3.3
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
10 ______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(MAX2652 EV kit, V = +3.0V, input and output matched with recommended matching networks, T = +25°C, unless otherwise noted.)
CC
A
MAX2652 (DCS Band)
POWER GAIN vs. FREQUENCY
POWER GAIN vs. INPUT POWER
INPUT RETURN LOSS vs. FREQUENCY
MA\X2652-toc04
0
-2
0
20
18
LOW GAIN
20
10
HIGH GAIN
HIGH GAIN
LOW GAIN
-10
HIGH GAIN
-4
16
14
LOW GAIN
-20
-30
-40
-50
-6
0
-8
12
10
8
-10
-20
-10
-12
f = 945MHz
-20
1800
1840
1880
1920
1960
2000
-25
-15
-10
(dBm)
-5
0
1800
1840
1880
1920
1960
2000
FREQUENCY (MHz)
P
IN
FREQUENCY (MHz)
HIGH-GAIN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
OUTPUT RETURN LOSS vs. FREQUENCY
REVERSE ISOLATION vs. FREQUENCY
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
0
-10
-20
-30
-40
-50
0
-10
-20
-30
-40
-50
NO INPUT SIGNAL
HIGH GAIN
T
= +85°C
A
LOW GAIN
LOW GAIN
T
= +25°C
A
HIGH GAIN
T
= -40°C
A
2.7
2.8
2.9
3.0
3.1
3.2
3.3
1800
1840
1880
1920
1960
2000
1800
1840
1880
1920
1960
2000
SUPPLY VOLTAGE (V)
FREQUENCY (MHz)
FREQUENCY (MHz)
LOW-GAIN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
INPUT IP3 vs. SUPPLY VOLTAGE
INPUT P1dB vs. SUPPLY VOLTAGE
3.0
2.5
2.0
4
2
-4
-6
-8
T
= +85°C
A
T
= +85°C
A
LOW GAIN
T
= +85°C
A
T
T
= +25°C
A
0
T
= -40°C
A
T
= +25°C
A
LOW GAIN
T
= -40°C
A
-2
-4
-6
-8
-10
= +25°C
= -40°C
A
HIGH GAIN
T
A
= +85°C
-14
-16
-18
T
T = +85°C
A
A
1.5
1.0
HIGH GAIN
3.2
T
= +25°C
= -40°C
A
T
= +25°C
A
NO INPUT SIGNAL
T
A
T
= -40°C
A
2.7
2.8
2.9
3.0
3.1
3.2
3.3
2.7
2.8
2.9
3.0
3.1
3.2
3.3
2.7
2.8
2.9
3.0
3.1
3.3
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
______________________________________________________________________________________ 11
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(MAX2653 EV kit, V = +3.0V, input and output matched with recommended matching networks, T = +25°C, unless otherwise noted.)
CC
A
MAX2653 (DCS Band)
INPUT RETURN LOSS
vs. FREQUENCY
POWER GAIN vs. INPUT POWER
POWER GAIN vs. FREQUENCY
MA\X2651-15
0
-4
20
10
-3
-5
18
16
HIGH GAIN
LOW GAIN
LOW GAIN
HIGH GAIN
14
12
10
-7
0
-8
LOW GAIN
HIGH GAIN
-9
-10
-20
-12
-16
-11
f = 1840MHz
-20
1800
1840
1880
1920
1960
2000
-25
-15
P
-10
(dBm)
-5
0
1800
1840
1880
1920
1960
2000
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
0
OUTPUT RETURN LOSS
vs. FREQUENCY
REVERSE ISOLATION vs. FREQUENCY
0
HIGH GAIN
LOW GAIN
-10
-20
-30
-40
-10
-20
-30
-40
LOW GAIN
HIGH GAIN
1800
1840
1880
1920
1960
2000
1800
1840
1880
1920
1960
2000
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT vs. V HIGH GAIN
CC
SUPPLY CURRENT vs. V LOW GAIN
CC
8
7
6
5
4
3.0
2.5
2.0
1.5
1.0
T
= +85°C
A
NO INPUT SIGNAL
T
= +85°C
A
T
= +25°C
A
T
= +25°C
A
T
= -40°C
A
T
= -40°C
A
NO INPUT SIGNAL
2.8 2.9
2.7
2.8
2.9
V
3.0
(V)
3.1
3.2
3.3
2.7
3.0
(V)
3.1
3.2
3.3
V
CC
CC
12 ______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Pin Description
PIN
MAX2652 MAX2653
NAME
FUNCTION
MAX2651
Shutdown Logic Input. Drive low to enter shutdown; drive high or con-
—
1
1
SHDN
nect to V
for normal operation.
CC
RF Ground. Connect to the ground plane as close to the IC as possible
to minimize trace inductance.
1, 3, 6
3, 6
2, 4, 5
GND
2
4
2
4
—
3
GSMIN
DCSIN
RF Input for GSM Band
RF Input for DCS and PCS bands
Band-Select Logic Input. Drive BAND high to enable DCS/PCS LNA;
drive low to enable GSM LNA.
5
5
—
BAND
7
8
9
7
8
9
6
7
DCSOUT
RF Output for DCS and PCS Bands
V
CC
Supply Voltage Input, +2.7V < V < +3.3V
CC
—
GSMOUT
GAIN
RF Output for GSM Band
Gain-Select Logic Input. Drive GAIN high for high-gain operation; drive
GAIN low for low-gain operation.
10
10
8
LOGIC-LEVEL
GAIN CONTROL
V
CC
910Ω
100pF
1
10
GND
GAIN
180Ω
220pF
8.2nH
8.2nH
C9
MAX2651
68pF
15pF
2.2pF
GSM INPUT
2
3
4
9
8
7
GSM
GSMIN
GSMOUT
(925MHz TO 960MHz)
OUTPUT
V
CC
GND
V
CC
10µF
1.2pF
47pF
3.9nH
DCS
OUTPUT
DCS INPUT
(1805MHz TO 1880MHz)
DCSIN
DCSOUT
GND
1.5pF
5
6
2.2nH
330Ω
BAND
220pF
220pF
910Ω
V
CC
LOGIC-LEVEL
BAND CONTROL
Figure 1. MAX2651 Typical Application Circuit
______________________________________________________________________________________ 13
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
LOGIC-LEVEL
SHUTDOWN CONTROL
LOGIC-LEVEL
GAIN CONTROL
V
CC
910Ω
910Ω
100pF
1
10
SHDN
GAIN
240Ω
220pF
8.2nH
6.8nH
220pF
C9
MAX2652
68pF
5.6pF
47pF
2.2pF
GSM INPUT
2
3
4
9
8
7
GSM
GSMIN
GSMOUT
(925MHz TO 960MHz)
OUTPUT
V
CC
GND
V
CC
10µF
1.2pF
3.3nH
DCS
OUTPUT
DCS INPUT
(1805MHz TO 1880MHz)
DCSIN
DCSOUT
GND
1.1pF
5
6
2.2nH
BAND
220pF
220pF
910Ω
1µF
V
CC
LOGIC-LEVEL
BAND CONTROL
Figure 2. MAX2652 Typical Application Circuit
LOGIC-LEVEL
SHUTDOWN CONTROL
LOGIC-LEVEL
GAIN CONTROL
1kΩ
1kΩ
MAX2653
100pF
1
2
3
8
SHDN
GAIN
V
CC
100pF
200pF
7
6
GND
V
CC
1.0pF
(0.8pF*)
3.3nH
DCS
OUTPUT
DCS INPUT
(1805MHz TO 1880MHz)
DCSIN
DCSOUT
GND
2200pF
2.7nH
(2.2nH*)
330Ω
(510Ω*)
4
5
1.5pF
GND
47pF
V
CC
* FOR OPTIMUM PCS-BAND (1930MHz TO 1990MHz) PERFORMANCE, USE THESE COMPONENTS.
Figure 3. MAX2653 Typical Application Circuit
14 ______________________________________________________________________________________
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Layout and Power-Supply Bypassing
Detailed Description
A properly designed PC board is essential to any
RF/microwave circuit. Be sure to use controlled imped-
ance lines on all high-frequency inputs and outputs.
Proper grounding of the GND pins is fundamental; if
the PC board uses a topside RF ground, connect all
GND pins directly to it. For boards where the ground
plane is not on the component side, it’s best to connect
all GND pins to the ground plane with plated through-
holes close to the package.
Gain Select
The MAX2651/MAX2652/MAX2653 offer a step gain in
the LNA to optimize the receiver’s dynamic range. A
logic-level low at GAIN reduces the active LNA’s gain
by about 20dB and reduces supply current by 3.5mA.
Shutdown Functionality
The MAX2652/MAX2653 offer a low-current shutdown
feature. Drive SHDN low to power down the LNA and
reduce supply current to less than 0.25µA.
To minimize coupling between different sections of the
system, the ideal power-supply layout is a star configu-
ration with a large decoupling capacitor at a central
Applications Information
V
CC
node. The V
traces branch out from this central
CC
External Components
The MAX2651/MAX2652/MAX2653 require matching
circuits at their inputs and outputs for operation in a
50Ω system. The application circuits in Figures 1, 2,
and 3 describe the matching circuits for each device’s
LNA; suggested component values, suppliers, and part
numbers are listed in the MAX2651/MAX2652/
MAX2653 EV kits manual. These values are optimized
for best simultaneous noise figure, gain, and return loss
performance.
node, each leading to a separate V
node on the PC
CC
board. A second bypass capacitor that has low ESR at
the RF frequency of operation is placed at the end of
each trace. This arrangement provides local decou-
pling at the V
pin. At high frequencies, any signal
CC
leaking out of one supply pin sees a relatively high
impedance (formed by the V trace inductance) to
CC
the central V
node and an even higher impedance to
CC
any other supply pin, as well as a low impedance to
ground through its bypass capacitor.
Input and output impedance matching networks are
very sensitive to layout-related parasitics. It is important
to keep all matching components as close to the
device as possible to minimize the effects of stray
inductance and stray capacitance of PC board traces,
particularly for the 1800MHz and 1900MHz bands.
Chip Information
MAX2651 TRANSISTOR COUNT: 272
MAX2652 TRANSISTOR COUNT: 272
MAX2653 TRANSISTOR COUNT: 253
Using the Collector Load Resistor
to Set Gain
The MAX2651/MAX2652/MAX2653 provide open-col-
lector output stages to allow an external resistor to set
the gain. The collector pull-up resistors set the gain for
each LNA to about 18dB. Lower gains are achieved by
reducing this resistance, and higher gains are
achieved by increasing it. The maximum achievable
gain is defined by the maximum collector current
swing. Note that the value of the collector gain-setting
resistor principally defines the LNA’s output imped-
ance, and that the matching networks are tuned to
match this impedance to 50Ω. Redefining the LNA gain
by changing the collector gain-setting resistor requires
retuning the output matching networks.
______________________________________________________________________________________ 15
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
4X S
8
8
MILLIMETERS
INCHES
DIM MIN
MAX
MAX
MIN
-
-
0.043
0.006
0.037
0.014
0.007
0.120
1.10
0.15
0.95
0.36
0.18
3.05
A
0.002
0.030
0.010
0.005
0.116
0.05
0.75
0.25
0.13
2.95
A1
A2
b
E
H
ÿ 0.50 0.1
c
D
e
0.0256 BSC
0.65 BSC
0.6 0.1
E
H
0.116
0.188
0.016
0∞
0.120
2.95
4.78
0.41
0∞
3.05
5.03
0.66
6∞
0.198
0.026
6∞
L
1
1
α
S
0.6 0.1
0.0207 BSC
0.5250 BSC
D
BOTTOM VIEW
TOP VIEW
A1
A2
A
c
α
e
L
b
SIDE VIEW
FRONT VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0036
J
1
e
4X S
10
10
INCHES
DIM MIN
MAX
MILLIMETERS
MIN
-
MAX
1.10
0.15
0.95
3.05
3.00
3.05
3.00
5.05
0.70
A
-
0.043
0.006
0.037
0.120
0.118
0.120
0.118
0.199
A1
A2
D1
D2
E1
E2
H
0.002
0.030
0.116
0.114
0.116
0.114
0.187
0.05
0.75
2.95
2.89
2.95
2.89
4.75
0.40
H
ÿ 0.50 0.1
0.6 0.1
L
0.0157 0.0275
0.037 REF
L1
b
0.940 REF
0.007
0.0106
0.177
0.090
0.270
1
1
e
0.0197 BSC
0.500 BSC
0.6 0.1
c
0.0035 0.0078
0.0196 REF
0.200
BOTTOM VIEW
E2
0.498 REF
S
TOP VIEW
α
0∞
6∞
0∞
6∞
D2
GAGE PLANE
A2
c
A
E1
b
L
α
A1
D1
L1
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 10L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0061
I
1
Note: The packages for these devices do not feature the exposed pad.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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