Rainbow Electronics MAX19995А - Manual

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 V
CC = 5.0V, or 242mA at V CC = 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 (T
C = -40°C to +85°C).
Applications
UMTS/WCDMA Base Stations
LTE/WiMAX ™ Base 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
P RF = -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
MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-4419; Rev 0; 1/09
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.
+ 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.
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*
Pin Configuration/Functional Diagram appears at end of
data sheet.