Rainbow Electronics MAX2389 User Manual
General Description
The MAX2387/MAX2388/MAX2389 low-noise amplifier
(LNA), downconverter mixers designed for W-CDMA
applications, are ideal for ARIB (Japan) and ETSIUMTS (Europe) based systems. The MAX2387/
MAX2388/MAX2389 feature ultra-low current consumption and exceptionally low noise figures in ultra-small
packages.
The MAX2387/MAX2388 include an LNA, a downconverter 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 during 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 supply and are available in ultra-small (3mm ✕3mm) 12-pin
leadless packages (QFN).
________________________Applications
Japanese 3rd-Generation W-CDMA Cellular
Phones
Dual-Mode W-CDMA/GSM Cellular Phones
Features
♦ Ultra-Low Current Consumption: 10.7mA
(MAX2387), 9.9mA (MAX2388), and 7.9mA
(MAX2389)
♦ +2.7V to +3.3V Single-Supply Operation
♦ Mixer NF: 7dB SSB
♦ Cascaded Noise Figure: 2.3dB
♦ LNA Low-Gain Mode: 32dB Gain Step (MAX2387)
or 18dB Gain Step (MAX2388/MAX2389)
♦ Mixer IIP3: 6dBm
♦ < 1µA Shutdown Current
♦ Ultra-Small (3mm
✕
3mm) 12-Pin QFN Package
MAX2387/MAX2388/MAX2389
W-CDMA LNA/Mixer ICs
________________________________________________________________ Maxim Integrated Products 1
Pin Descriptions/Functional Diagrams
19-1834; Rev 1; 5/01
EVALUATION KIT
AVAILABLE
Ordering Information
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.
PART TEMP. RANGE PIN-PACKAGE
MAX2387EGC -40°C to +85°C 12 QFN
MAX2388EGC -40°C to +85°C 12 QFN
MAX2389EGC -40°C to +85°C 12 QFN
TOP VIEW
1LNA_OUT
2GAIN
3MIX_IN
BIAS11GND10LNA_IN
12
BIAS
45
LO+6LO-
SHDN
MAX2387/MAX2388
9 V
8 IF+
7 IF-
CC
1LNA_OUT
2GAIN
3MIX_IN
BIAS11GND10LNA_IN
12
BIAS
45
LO+6LO-
SHDN
MAX2389
9 V
8 IF+
7 IF-
CC
MAX2387/MAX2388/MAX2389
W-CDMA LNA/Mixer ICs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC= +2.7V to +3.3V, SHDN = high, R
BIAS
= 24kΩ, no input AC signals, TA= -40°C to +85°C. Typical values are at VCC= +2.7V,
T
A
= +25°C, unless otherwise noted.)
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 +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
AC ELECTRICAL CHARACTERISTICS
(MAX238_ EV kit, VCC= 2.7V, SHDN = high, f
RF_IN
= f
LNA_IN
= 2140MHz, fLO= 2330MHz (fIF= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, PLO= -10dBm (MAX2387/MAX2388), PLO= -4dBm (MAX2389), PRF=
-30dBm. Typical values are at V
CC
= +2.7V, TA= +25°C, unless otherwise noted.)
Operating Supply Current I
Shutdown Supply Current I
Digital Input Logic High V
Digital Input Logic Low V
Input Logic High Current I
Input Logic Low Current I
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
High-gain mode
CC
Low-gain mode
SHDN = low 0.2 1.0 µA
CC
IH
IL
VIN = V
IH
IL
VIN = V
IH
IL
MAX2387 10.7 12.4
MAX2388 9.9 11.7
MAX2389 7.9 9.3
MAX2387 7.2 8.7
MAX2388 6.7 8.1
MAX2389 4.7 5.7
2.0 V
0.6 V
1µA
-20 µA
mA
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = HIGH)
RF Frequency Range (Note 1) f
Gain G
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF
LNA
TA = +25°C 13.5 15 16.5
TA = -40°C to +85°C (Note 2) 12.9 17.0
2110 2170 MHz
dB
MAX2387/MAX2388/MAX2389
W-CDMA LNA/Mixer ICs
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, VCC= 2.7V, SHDN = high, f
RF_IN
= f
LNA_IN
= 2140MHz, fLO= 2330MHz (fIF= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, PLO= -10dBm (MAX2387/MAX2388), PLO= -4dBm (MAX2389), PRF=
-30dBm. Typical values are at V
CC
= +2.7V, TA= +25°C, unless otherwise noted.)
Noise Figure (Notes 1, 3) NF
3rd-Order Input Intercept Point
(Note 4)
Input -1dB Compression Point
(Note 1)
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = LOW)
Gain G
Noise Figure (Notes 1, 3) NF
3rd-Order Input Intercept Point
(Note 5)
Input -1dB Compression Point IP
MIXER PERFORMANCE (GAIN = HIGH)
RF Frequency Range (Note 1) f
LO Frequency Range (Note 1) f
IF Frequency Range (Note 1) f
Power Conversion Gain G
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LNA
IIP3
LNA
IP
-1dB
LNA
LNA
IIP3
LNA
-1dB
RF
LO
IF
MXR
MXR
TA = +25°C 1.7 2.2 dB
TA = -40°C to +85°C (Note 2) 4.2 dBm
TA = +25°C
TA = -40°C to +85°C
(Note 2)
TA = +25°C 8.5 10 11.5
TA = -40°C to +85°C (Note 2) 7.5 12.5
TA = +25°C
-19 -13 dBm
MAX2387 -18.5 -16.5 -14.5
MAX2388/
MAX2389
MAX2387 -10.5 -14
MAX2388/
MAX2389
MAX2387 19.2 21.3
MAX2388/
MAX2389
MAX2387 1
MAX2388/
MAX2389
MAX2387 -9.9
MAX2388/
MAX2389
MAX2387 7.2 8.8
MAX2388 6.8 8.2Noise Figure (SSB) (Note 1) NF
MAX2389 7.3 9.5
-4.7 -2.8 -0.9
5.4 -0.7
6.5 8.4
3.4
-7.7
2110 2170 MHz
2250 2600 MHz
150 400 MHz
dB
dB
dBm
dBm
dB
dB
MAX2387/MAX2388/MAX2389
W-CDMA LNA/Mixer ICs
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, VCC= 2.7V, SHDN = high, f
RF_IN
= f
LNA_IN
= 2140MHz, fLO= 2330MHz (fIF= 190MHz). Mixer, LNA, and LO input
ports are driven with 50Ω sources. R
BIAS
= 24kΩ ±1%, PLO= -10dBm (MAX2387/MAX2388), PLO= -4dBm (MAX2389), PRF=
-30dBm. Typical values are at V
CC
= +2.7V, TA= +25°C, unless otherwise noted.)
Note 1: Guaranteed by design and characterization.
Note 2: MIN guaranteed by production test, MAX guaranteed by design and characterization.
Note 3: Includes input matching circuit loss.
Note 4: f
IN1
= 2140MHz, f
IN2
= 2141MHz, PIN= -30dBm per tone.
Note 5: f
IN1
= 2140MHz, f
IN2
= 2141MHz, PIN= -25dBm per tone.
3rd-Order Input Intercept Point
(Notes 1, 3)
Input -1dB Compression Point
(Note 1)
MIXER PERFORMANCE (GAIN = LOW)
Power Conversion Gain (Note 1) G
3rd-Order Input Intercept Point
(Note 4)
Input -1dB Compression Point
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IIP3
MXR
IP
- 1dB,M XRTA
MXR
MXR
IIP3
MXR
IP
- 1dB,M XRTA
= -40°C to +85°C
TA = +25°C 7.5 9.0 10.5
TA = -40°C to +85°C 6.5 12.0
TA = +25°C
TA = +25°C
= -40°C to +85°C
MAX2387 6
MAX2388 6
MAX2389 5
MAX2387 -13.9 -10
MAX2388 -16.3 -10.5
MAX2389 -15.4 -10.5
MAX2387 6.9 8.4
MAX2388 6.1 7.4Noise Figure (SSB) (Note 1) NF
MAX2389 6.6 8.8
MAX2387 0.7
MAX2388 0.2
MAX2389 1.3
MAX2387 -15.0 -10.7
MAX2388 -18.2 -11.3
MAX2389 -17.8 -11.9
dBm
dBm
dB
dB
dBm
dBm
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