19-4253; Rev 0; 12/08
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
The MAX19995 dual-channel downconverter provides
up to 9dB of conversion gain, +24.8dBm input IP3,
+13.3dBm 1dB input compression point, and a noise
figure as low as 9dB for 1700MHz to 2200MHz diversity
receiver applications. With an optimized LO frequency
range of 1400MHz to 2000MHz, this mixer is ideal for
low-side LO injection architectures. High-side LO injec-
tion is supported by the MAX19995A, which is pin-pin
and functionally compatible with the MAX19995.
In addition to offering excellent linearity and noise per-
formance, the MAX19995 also yields a high level of
component integration. This device includes two dou-
ble-balanced passive mixer cores, two LO buffers, a
dual-input LO selectable switch, and a pair of differen-
tial IF output amplifiers. Integrated on-chip baluns allow
for single-ended RF and LO inputs.
The MAX19995 requires a nominal LO drive of 0dBm
and a typical supply current of 297mA at VCC = 5.0V or
212mA at VCC = 3.3V.
The MAX19995/MAX19995A are pin compatible with
the MAX19985/MAX19985A series of 700MHz to
1000MHz mixers and pin similar with 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 MAX19995 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, from TC = -40°C to +85°C.
UMTS/WCDMA/LTE Base Stations
cdma2000® Base Stations
DCS1800 and EDGE Base Stations
PCS1900 and EDGE Base Stations
PHS/PAS Base Stations
Fixed Broadband Wireless Access
Wireless Local Loop
Private Mobile Radios
o 1700MHz to 2200MHz RF Frequency Range
o 1400MHz to 2000MHz LO Frequency Range
o 1750MHz to 2700MHz LO Frequency Range
o 50MHz to 500MHz IF Frequency Range
o 9dB Typical Conversion Gain
o 9dB Typical Noise Figure
o +24.8dBm Typical Input IP3
o +13.3dBm Typical Input 1dB Compression Point
o 79dBc Typical 2RF-2LO Spurious Rejection at
PRF = -10dBm
o Dual Channels Ideal for Diversity Receiver
o 49dB Typical Channel-to-Channel Isolation
o Low -3dBm to +3dBm LO Drive
o Integrated LO Buffer
o Internal RF and LO Baluns for Single-Ended
o Built-In SPDT LO Switch with 56dB LO-to-LO
Isolation and 50ns Switching Time
o Pin Compatible with the MAX19985/MAX19985A/
MAX19995A Series of 700MHz to 2200MHz Mixers
o Pin Similar to the MAX19997A/MAX19999 Series
of 1800MHz to 4000MHz Mixers
o Single +5.0V or +3.3V Supply
o External Current-Setting Resistors Provide Option
for Operating Device in Reduced-Power/Reduced-
MAX19995ETX+ -40°C to +85°C
36 Thin QFN-EP*
MAX19995ETX+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.
Pin Configuration and Typical Application Circuit appear at
end of data sheet.
cdma2000 is a trademark of Telecommunications Industry
________________________________________________________________ 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.