19-1834; Rev 1; 5/01
KIT
ATION
EVALU
BLE
AVAILA
W-CDMA LNA/Mixer ICs
Features
o
Ultra-Low Current Consumption: 10.7mA
(MAX2387), 9.9mA (MAX2388), and 7.9mA
(MAX2389)
o
+2.7V to +3.3V Single-Supply Operation
o
Mixer NF: 7dB SSB
o
Cascaded Noise Figure: 2.3dB
o
LNA Low-Gain Mode: 32dB Gain Step (MAX2387)
or 18dB Gain Step (MAX2388/MAX2389)
o
Mixer IIP3: 6dBm
o
< 1µA Shutdown Current
o
Ultra-Small (3mm
✕
3mm) 12-Pin QFN Package
General Description
The MAX2387/MAX2388/MAX2389 low-noise amplifier
(LNA), downconverter mixers designed for W-CDMA
applications, are ideal for ARIB (Japan) and ETSI-
UMTS (Europe) based systems. The MAX2387/
MAX2388/MAX2389 feature ultra-low current consump-
tion and exceptionally low noise figures in ultra-small
packages.
The MAX2387/MAX2388 include an LNA, a downcon-
verter mixer, and a local-oscillator (LO) buffer. The
MAX2389 has an LNA and mixer, but minimizes current
consumption by omitting the LO buffer. For all devices,
the LNA and downconverter mixers are optimized for
the 2110MHz to 2170MHz band. All devices feature a
high-gain mode and a low-gain mode of LNA operation.
The MAX2387 has a 32dB gain step, and the
MAX2388/MAX2389 have an 18dB gain step. All ICs
include a shutdown mode, powering down the IC dur-
ing the front-end receiver’s idle periods.
The mixer 3rd-order nonlinearity performance is set
using an external biasing resistor. For the MAX2387/
MAX2388, mixer performance is optimized for a
-10dBm typical drive at the LO buffer input port. The
MAX2389 mixer performance is optimized for a
-4dBm typical drive at the LO input port. The LO port
for all versions is configurable for either single-ended or
differential operation.
These devices operate from a +2.7V to +3.3V single sup-
ply and are available in ultra-small (3mm
✕
3mm) 12-pin
leadless packages (QFN).
MAX2387/MAX2388/MAX2389
Ordering Information
PART
MAX2387EGC
MAX2388EGC
MAX2389EGC
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
12 QFN
12 QFN
12 QFN
________________________Applications
Japanese 3rd-Generation W-CDMA Cellular
Phones
Dual-Mode W-CDMA/GSM Cellular Phones
Pin Descriptions/Functional Diagrams
TOP VIEW
BIAS
12
GND
11
LNA_IN
10
BIAS
GND
11
LNA_IN
10
MAX2387/MAX2388
12
MAX2389
LNA_OUT
GAIN
MIX_IN
1
2
3
BIAS
9
8
7
V
CC
IF+
IF-
LNA_OUT
GAIN
MIX_IN
1
2
3
BIAS
9
8
7
V
CC
IF+
IF-
4
SHDN
5
LO+
6
LO-
4
SHDN
5
LO+
6
LO-
________________________________________________________________
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.
W-CDMA LNA/Mixer ICs
MAX2387/MAX2388/MAX2389
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ...........................................................-0.3V to +4.3V
SHDN,
GAIN to GND..................................-0.3V to (V
CC
+ 0.3V)
AC Signals ....................................................................+1V peak
Digital Input Current .........................................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
12-Pin QFN (derate 11.9mW/°C above T
A
= +70°C)...952mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (10s) ...........................................+300°C
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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +3.3V,
SHDN
= high, R
BIAS
= 24kΩ, no input AC signals, T
A
= -40°C to +85°C. Typical values are at V
CC
= +2.7V,
T
A
= +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MAX2387
High-gain mode
Operating Supply Current
I
CC
Low-gain mode
SHDN
= low
2.0
0.6
V
IN
= V
IH
V
IN
= V
IL
-20
1
MAX2388
MAX2389
MAX2387
MAX2388
MAX2389
Shutdown Supply Current
Digital Input Logic High
Digital Input Logic Low
Input Logic High Current
Input Logic Low Current
I
CC
V
IH
V
IL
I
IH
I
IL
MIN
TYP
10.7
9.9
7.9
7.2
6.7
4.7
0.2
MAX
12.4
11.7
9.3
8.7
8.1
5.7
1.0
µA
V
V
µA
µA
mA
UNITS
AC ELECTRICAL CHARACTERISTICS
(MAX238_ EV kit, V
CC
= 2.7V,
SHDN
= high, f
RF_IN
= f
LNA_IN
= 2140MHz, f
LO
= 2330MHz (f
IF
= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, P
LO
= -10dBm (MAX2387/MAX2388), P
LO
= -4dBm (MAX2389), P
RF
=
-30dBm. Typical values are at V
CC
= +2.7V, T
A
= +25°C, unless otherwise noted.)
PARAMETER
RF Frequency Range (Note 1)
Gain
SYMBOL
f
RF
G
LNA
T
A
= +25°C
T
A
= -40°C to +85°C (Note 2)
CONDITIONS
MIN
2110
13.5
12.9
15
TYP
MAX
2170
16.5
17.0
UNITS
MHz
dB
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = HIGH)
2
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, V
CC
= 2.7V,
SHDN
= high, f
RF_IN
= f
LNA_IN
= 2140MHz, f
LO
= 2330MHz (f
IF
= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, P
LO
= -10dBm (MAX2387/MAX2388), P
LO
= -4dBm (MAX2389), P
RF
=
-30dBm. Typical values are at V
CC
= +2.7V, T
A
= +25°C, unless otherwise noted.)
PARAMETER
Noise Figure (Notes 1, 3)
3
rd
-Order Input Intercept Point
(Note 4)
Input -1dB Compression Point
(Note 1)
SYMBOL
NF
LNA
IIP3
LNA
IP
-1dB
T
A
= +25°C
T
A
= -40°C to +85°C (Note 2)
-19
CONDITIONS
MIN
TYP
1.7
4.2
-13
MAX
2.2
UNITS
dB
dBm
dBm
MAX2387/MAX2388/MAX2389
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = LOW)
MAX2387
T
A
= +25°C
Gain
G
LNA
T
A
= -40°C to +85°C
(Note 2)
MAX2388/
MAX2389
MAX2387
MAX2388/
MAX2389
MAX2387
Noise Figure (Notes 1, 3)
NF
LNA
MAX2388/
MAX2389
MAX2387
3
rd
-Order Input Intercept Point
(Note 5)
IIP3
LNA
MAX2388/
MAX2389
MAX2387
Input -1dB Compression Point
IP
-1dB
MAX2388/
MAX2389
2110
2250
150
T
A
= +25°C
T
A
= -40°C to +85°C (Note 2)
MAX2387
Noise Figure (SSB) (Note 1)
NF
MXR
T
A
= +25°C
MAX2388
MAX2389
8.5
7.5
7.2
6.8
7.3
10
-18.5
-4.7
-10.5
5.4
19.2
6.5
1
3.4
-9.9
-7.7
dBm
dBm
-16.5
-2.8
-14.5
-0.9
-14
-0.7
21.3
8.4
dB
dB
MIXER PERFORMANCE (GAIN = HIGH)
RF Frequency Range (Note 1)
LO Frequency Range (Note 1)
IF Frequency Range (Note 1)
Power Conversion Gain
f
RF
f
LO
f
IF
G
MXR
2170
2600
400
11.5
12.5
8.8
8.2
9.5
dB
MHz
MHz
MHz
dB
_______________________________________________________________________________________
3
W-CDMA LNA/Mixer ICs
MAX2387/MAX2388/MAX2389
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, V
CC
= 2.7V,
SHDN
= high, f
RF_IN
= f
LNA_IN
= 2140MHz, f
LO
= 2330MHz (f
IF
= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, P
LO
= -10dBm (MAX2387/MAX2388), P
LO
= -4dBm (MAX2389), P
RF
=
-30dBm. Typical values are at V
CC
= +2.7V, T
A
= +25°C, unless otherwise noted.)
PARAMETER
3
rd
-Order Input Intercept Point
(Notes 1, 3)
SYMBOL
IIP3
MXR
CONDITIONS
MAX2387
MAX2388
MAX2389
MAX2387
Input -1dB Compression Point
(Note 1)
IP
-1dB,MXR
T
A
= -40°C to +85°C
MAX2388
MAX2389
MIXER PERFORMANCE (GAIN = LOW)
Power Conversion Gain (Note 1)
G
MXR
T
A
= +25°C
T
A
= -40°C to +85°C
MAX2387
Noise Figure (SSB) (Note 1)
NF
MXR
T
A
= +25°C
MAX2388
MAX2389
MAX2387
3
rd
-Order Input Intercept Point
(Note 4)
IIP3
MXR
T
A
= +25°C
MAX2388
MAX2389
MAX2387
Input -1dB Compression Point
(Note 1)
IP
-1dB,MXR
T
A
= -40°C to +85°C
MAX2388
MAX2389
-15.0
-18.2
-17.8
7.5
6.5
6.9
6.1
6.6
0.7
0.2
1.3
-10.7
-11.3
-11.9
dBm
dBm
9.0
10.5
12.0
8.4
7.4
8.8
dB
dB
-13.9
-16.3
-15.4
MIN
TYP
6
6
5
-10
-10.5
-10.5
dBm
dBm
MAX
UNITS
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Guaranteed by design and characterization.
MIN guaranteed by production test, MAX guaranteed by design and characterization.
Includes input matching circuit loss.
fIN1 = 2140MHz, fIN2 = 2141MHz, PIN = -30dBm per tone.
fIN1 = 2140MHz, fIN2 = 2141MHz, PIN = -25dBm per tone.
4
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
Typical Operating Characteristics
(T
A
= +25°C, V
CC
= +2.7V, unless otherwise noted.)
MAX2387
SUPPLY CURRENT vs. TEMPERATURE
MAX2387/88/89 toc01
MAX2387/MAX2388/MAX2389
MAX2387
LNA GAIN vs. TEMPERATURE
MAX2387/88/89 toc02
MAX2387
LNA IIP3 vs. TEMPERATURE
8
6
4
IIP3 (dBm)
2
0
-2
-4
LOW-GAIN MODE
MAX2387/88/89 toc03
16
14
SUPPLY CURRENT (mA)
12
10
8
6
4
2
-40
-15
10
35
60
V
CC
= +2.7V
LOW-GAIN
V
CC
= +4.3V
LOW-GAIN
V
CC
= +2.7V V
CC
= +3.3V V
CC
= +4.3V
HIGH-GAIN LOW-GAIN HIGH-GAIN
20
15
10
GAIN (dB)
5
0
-5
HIGH-GAIN MODE
10
HIGH-GAIN MODE
V
CC
= +3.3V
HIGH-GAIN
-10
-15
-20
85
-40
-15
LOW-GAIN MODE
-6
-8
-10
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX2387
MIXER CONVERSION GAIN
vs. LO INPUT POWER
MAX2387/88/89 toc04
MAX2387
MIXER IIP2 AND IIP3 vs. TEMPERATURE
MAX2387/88/89 toc05
MAX2387
MIXER INPUT -1dB COMPRESSION POINT
vs. TEMPERATURE
MAX2387/88/89 toc06
12
10
CONVERSION GAIN (dB)
8
30
25
20
IIP (dBm)
15
10
5
0
IIP3: HIGH-GAIN
MODE
IIP2: HIGH-GAIN
MODE, SINGLE-
ENDED LO
IIP2: HIGH-GAIN
MODE, DIFFERENTIAL
LO
-6
-1dB COMPRESSION POINT (dBm)
-8
LOW-GAIN MODE
6
4
2
0
-13
-12
-11
HIGH-GAIN MODE
-10
-12
-14
-5
-10
-10
-9
-8
-7
-40
IIP3: LOW-GAIN
MODE
-16
10
35
60
85
-40
-15
10
35
60
85
-15
LO INPUT LEVEL (dBm)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX2387
MIXER LO-IF AND LO-RF ISOLATION
vs. LO FREQUENCY
MAX2387/88/89 toc07
MAX2387
LNA NOISE FIGURE vs. FREQUENCY
MAX2387/88/89 toc08
MAX2387
MIXER NOISE FIGURE vs. LO POWER
HIGH-GAIN MODE
7
NOISE FIGURE (dB)
MAX2387/88/89 toc09
40
35
30
ISOLATION (dB)
25
20
15
10
5
0
2300
2310
2320
2330
2340
2350
LO-IF: HIGH-GAIN
MODE
LO-IF: LOW-GAIN
MODE
LO-RF: LOW-GAIN
MODE
LO-RF: HIGH-GAIN
MODE
25
8
20
NOISE FIGURE (dB)
15
LOW-GAIN MODE
6
LOW-GAIN MODE
10
HIGH-GAIN MODE
5
5
V
CC
= +2.7V
LO = -10dBm
0
2360
2110
2120
2130
2140
2150
2160
2170
4
-13
-12
-11
-10
-9
-8
-7
FREQUENCY (MHz)
LO POWER (dB)
FREQUENCY (MHz)
_______________________________________________________________________________________
5
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