19-3383; Rev 0; 8/04
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
General Description
Features
♦ 1700MHz to 2200MHz RF Frequency Range
The MAX9995 dual, high-linearity, downconversion
mixer provides 6.1dB gain, +25.6dBm IIP3, and 9.8dB
NF for UMTS/WCDMA, DCS, and PCS base-station
applications. The MAX9995 is ideal for low-side LO
injection. (For a mixer variant optimized for high-side
LO injection, contact the factory.)
♦ 1400MHz to 2000MHz LO Frequency Range
(MAX9995)
♦ 1900MHz to 2400MHz LO Frequency Range
(Contact Factory)
This device integrates baluns in the RF and LO ports, a
dual-input LO selectable switch, an LO buffer, two double-
balanced mixers, and a pair of differential IF output ampli-
fiers. The MAX9995 requires a typical LO drive of 0dBm
and supply current is guaranteed to be below 380mA.
♦ 40MHz to 350MHz IF Frequency Range
♦ 6.1dB Conversion Gain
♦ +25.6dBm Input IP3
♦ 9.8dB Noise Figure
These devices are available in a compact 36-pin thin
QFN package (6mm × 6mm) with an exposed paddle.
Electrical performance is guaranteed over the extended
♦ 66dBc 2RF–2LO Spurious Rejection at
P
RF
= -10dBm
♦ Dual Channels Ideal for Diversity Receiver
temperature range, from T = -40°C to +85°C.
C
Applications
♦ Integrated LO Buffer
Applications
PHS/PAS Base Stations
♦ Integrated RF and LO Baluns for Single-Ended
UMTS/WCDMA and
cdma2000® 3G Base
Stations
Inputs
Fixed Broadband
Wireless Access
♦ Low -3dBm to +3dBm LO Drive
♦ Built-In SPDT LO Switch with 50dB LO1–LO2
DCS1800 and EDGE
Base Stations
Wireless Local Loop
Private Mobile Radio
Military Systems
Isolation and 50ns Switching Time
♦ 44dB Channel-to-Channel Isolation
PCS1900 and EDGE
Base Stations
Pin Configuration/
Functional Diagram
Ordering Information
PART
MAX9995ETX
MAX9995ETX-T
TEMP RANGE
PIN-PACKAGE
TOP VIEW
T ** = -40°C to +85°C 36 Thin QFN-EP*
C
T
= -40°C to +85°C 36 Thin QFN-EP*
C
C
36 Thin QFN-EP*
= -40°C to +85°C
1
27
MAX9995ETX+D
T
RFMAIN
LO2
lead free, bulk
MAX9995
2
3
4
5
6
7
8
9
26
TAPMAIN
GND
GND
36 Thin QFN-EP*
= -40°C to +85°C
MAX9995ETX+TD
T
C
lead free, T/R
25
24
23
22
21
20
19
GND
*EP = Exposed pad.
V
CC
GND
**T = Case temperature.
C
GND
LOSEL
GND
V
CC
V
CC
GND
TAPDIV
RFDIV
EXPOSED
PADDLE
GND
LO1
6mm x 6mm THIN QFN (EXPOSED PADDLE)
EXPOSED PADDLE ON THE BOTTOM OF THE PACKAGE
cdma2000 is a registered trademark of Telecommunications
Industry Association.
________________________________________________________________ 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.