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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX19995A Datasheet

1700MHz To 2200MHz Downconversion Mixer

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19-4419; Rev 0; 1/09
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Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
General Description
The MAX19995A dual-channel downconverter is
designed to provide 8.7dB of conversion gain,
+24.8dBm input IP3, +13.5dBm 1dB input compression
point, and a noise figure of 9.2dB for 1700MHz to
2200MHz diversity receiver applications. With an opti-
mized LO frequency range of 1750MHz to 2700MHz, this
mixer is ideal for high-side LO injection architectures.
Low-side LO injection is supported by the MAX19995,
which is pin-pin and functionally compatible with the
MAX19995A.
In addition to offering excellent linearity and noise per-
formance, the MAX19995A also yields a high level of
component integration. This device includes two double-
balanced passive mixer cores, two LO buffers, a dual-
input LO selectable switch, and a pair of differential IF
output amplifiers. Integrated on-chip baluns allow for sin-
gle-ended RF and LO inputs. The MAX19995A requires a
nominal LO drive of 0dBm and a typical supply current of
350mA at VCC = 5.0V, or 242mA at VCC = 3.3V.
The MAX19995/MAX19995A are pin compatible with the
MAX19985/MAX19985A series of 700MHz to 1000MHz
mixers and pin similar to the MAX19997A/MAX19999
series of 1800MHz to 4000MHz mixers, making this
entire family of downconverters ideal for applications
where a common PCB layout is used across multiple
frequency bands.
The MAX19995A is available in a 6mm x 6mm, 36-pin
thin QFN package with an exposed pad. Electrical per-
formance is guaranteed over the extended temperature
range (TC = -40°C to +85°C).
Applications
UMTS/WCDMA Base Stations
LTE/WiMAXBase Stations
TD-SCDMA Base Stations
DCS1800/PCS1900 and GSM/EDGE Base
Stations
cdma2000® Base Stations
Fixed Broadband Wireless Access
Wireless Local Loop
Private Mobile Radios
Military Systems
Features
1700MHz to 2200MHz RF Frequency Range
1750MHz to 2700MHz LO Frequency Range
50MHz to 500MHz IF Frequency Range
8.7dB Typical Conversion Gain
9.2dB Typical Noise Figure
+24.8dBm Typical Input IP3
+13.5dBm Typical Input 1dB Compression Point
64dBc Typical 2LO-2RF Spurious Rejection at
PRF = -10dBm
Dual Channels Ideal for Diversity Receiver
Applications
48dB Typical Channel-to-Channel Isolation
Low -3dBm to +3dBm LO Drive
Integrated LO Buffer
Internal RF and LO Baluns for Single-Ended
Inputs
Built-In SPDT LO Switch with 48dB LO-to-LO
Isolation and 50ns Switching Time
Pin Compatible with the MAX19985/MAX19985A/
MAX19995 Series of 700MHz to 2200MHz Mixers
Pin Similar to the MAX19997A/MAX19999 Series
of 1800MHz to 4000MHz Mixers
Single 5.0V or 3.3V Supply
External Current-Setting Resistors Provide Option
for Operating Device in Reduced-Power/Reduced-
Performance Mode
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX19995AETX+
-40°C to +85°C 36 Thin QFN-EP*
MAX19995AETX+T -40°C to +85°C 36 Thin QFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
T = Tape and reel.
WiMAX is a trademark of WiMAX Forum.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
Pin Configuration/Functional Diagram appears at end of
data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX19995A Datasheet

1700MHz To 2200MHz Downconversion Mixer

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Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
ABSOLUTE MAXIMUM RATINGS
VCC to GND ...........................................................-0.3V to +5.5V
LO1, LO2 to GND ..................................................-0.3V to +0.3V
LOSEL to GND ...........................................-0.3V to (VCC + 0.3V)
RFMAIN, RFDIV, and LO_ Input Power ..........................+15dBm
RFMAIN, RFDIV Current (RF is DC shorted to GND
through a balun)..............................................................50mA
Continuous Power Dissipation (Note 1) ...............................8.7W
θJA (Notes 2, 3)..............................................................+38°C/W
θJC (Notes 1, 3)...............................................................7.4°C/W
Operating Case Temperature Range (Note 4) ....-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Based on junction temperature TJ = TC + (θJC x VCC x ICC). This formula can be used when the temperature of the exposed
pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction
temperature must not exceed +150°C.
Note 2: Junction temperature TJ = TA + (θJA x VCC x ICC). This formula can be used when the ambient temperature of the PCB is
known. The junction temperature must not exceed +150°C.
Note 3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
Note 4: TC is the temperature on the exposed pad of the package. TA is the ambient temperature of the device and PCB.
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.
5.0V SUPPLY DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VCC = 4.75V to 5.25V, no input AC signals. TC = -40°C to +85°C, R1 = R4 = 681Ω, R2 = R5 = 1.5kΩ.
Typical values are at VCC = 5.0V, TC = +25°C, unless otherwise noted. All parameters are production tested.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
Supply Current
LOSEL Input High Voltage
LOSEL Input Low Voltage
LOSEL Input Current
VCC
ICC
VIH
VIL
IIH and IIL
Total supply current, VCC = 5.0V
4.75 5 5.25
350 410
2
0.8
-10 +10
V
mA
V
V
µA
3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VCC = 3.0V to 3.6V, no input AC signals. TC = -40°C to +85°C, R1 = R4 = 909Ω, R2 = R5 = 1kΩ. Typical
values are at VCC = 3.3V, TC = +25°C, unless otherwise noted. Parameters are guaranteed by design and not production tested.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
Supply Current
LOSEL Input High Voltage
LOSEL Input Low Voltage
VCC
ICC Total supply current
VIH
VIL
3.0 3.3 3.6
V
242 300
mA
2V
0.8 V
2 _______________________________________________________________________________________


Part Number MAX19995A
Description 1700MHz To 2200MHz Downconversion Mixer
Maker Maxim Integrated Products
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