MAX9985 Maxim Integrated Products, MAX9985 Datasheet
MAX9985
Manufacturer Part Number
MAX9985
Description
Downconversion Mixer
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX9985.pdf
(15 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX9985ETX
Manufacturer:
MAXIM
Quantity:
32
Company:
Part Number:
MAX9985ETX+
Manufacturer:
Maxim Integrated Products
Quantity:
135
Company:
Part Number:
MAX9985ETX+T
Manufacturer:
MAXIM
Quantity:
3 050
The MAX9985 high-linearity, dual-channel downconver-
sion mixer is designed to provide approximately 6dB
gain, +28.5dBm of IIP3, and 10.5dB of noise figure (NF)
ideal for diversity receiver applications. With a 700MHz
to 1000MHz RF frequency range and a 570MHz to
865MHz LO frequency range, this mixer is ideal for low-
side LO injection architectures. In addition, the broad
frequency range makes the MAX9985 ideal for GSM
850/950, 2G/2.5G EDGE, WCDMA, cdma2000
iDEN
The MAX9985 dual-channel downconverter achieves a
high level of component integration. The MAX9985 inte-
grates two double-balanced active mixer cores, two LO
buffers, a dual-input LO selectable switch, and a pair of
differential IF output amplifiers. In addition, integrated
on-chip baluns at the RF and LO ports allow for single-
ended RF and single-ended LO inputs. The MAX9985
requires a typical 0dBm LO drive. Supply current is
adjustable up to 400mA.
The MAX9985 is available in a 36-pin thin QFN pack-
age (6mm x 6mm) with an exposed paddle. Electrical
performance is guaranteed over the extended tempera-
ture range, from T
19-0705 Rev 0; 1/07
cdma2000 is a registered trademark of Telecommunications
Industry Association.
iDEN is a registered trademark of Motorola, Inc.
cdmaOne is a trademark of CDMA Development Group.
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.
Dual, SiGe, High-Linearity, 700MHz to 1000MHz
®
Downconversion Mixer with LO Buffer/Switch
850MHz WCDMA Base Stations
GSM 850/GSM 950, 2G/2.5G EDGE Base
Stations
cdmaOne™ and cdma2000 Base Stations
iDEN Base Stations
Fixed Broadband Wireless Access
Wireless Local Loop
Private Mobile Radios
Military Systems
Digital and Spread-Spectrum Communication
Systems
Microwave Links
base-station applications.
C
________________________________________________________________ Maxim Integrated Products
= -40°C to +85°C.
General Description
Applications
®
, and
o 700MHz to 1000MHz RF Frequency Range
o 570MHz to 865MHz LO Frequency Range
o 50MHz to 250MHz IF Frequency Range
o 6dB Typical Conversion Gain
o 10.5dB Typical Noise Figure
o +28.5dBm Typical Input IP3
o +16.2dBm Typical Input 1dB Compression Point
o 77dBc Typical 2RF-2LO Spurious Rejection at
o Dual Channels Ideal for Diversity Receiver
o 47dB Typical Channel-to-Channel Isolation
o -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 43dB LO1-to-LO2
o Pin-Compatible with MAX9995/MAX9995A
o Lead-Free Package Available
* EP = Exposed paddle.
T = Tape-and-reel package.
+ Denotes lead-free and RoHS compliant.
MAX9985ETX
MAX9985ETX-T
MAX9985ETX+
MAX9985ETX+T
P
Applications
Inputs
Isolation and 50ns Switching Time
1700MHz to 2200MHz Mixers
RF
PART
= -10dBm
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
PIN-PACKAGE
36 Thi n QFN- E P *
36 Thi n QFN- E P *
36 Thi n QFN- E P *
36 Thi n QFN- E P *
(6mm x 6mm),
(6mm x 6mm),
(6mm x 6mm),
lead free, bulk
(6mm x 6mm)
lead free, T/R
T/R
Features
T3666-2
T3666-2
T3666-2
T3666-2
CODE
PKG
1