MAXIM MAX19994A Dual, SiGe, High-Linearity, 1200MHz to 2000MHz Downconversion Mixer with LO Buffer Switch

19-5197; Rev 0; 4/10

Dual, Si Ge, High-Linearity, 1200MHz to 2000MHz Downconversion Mixer with LO Buffer/Switch General Description Features The MAX19994A dual-channel downconverter is S 1200MHz to 2000MHz RF Frequency Range designed to provide 8.4d B of conversion gain, +25d Bm

S 1450MHz to 2050MHz LO Frequency Range

input IP3, +14d Bm 1d B input compression point, and a

S 50MHz to 500MHz IF Frequency Range

noise figure of 9.8d B for 1200MHz to 2000MHz diversity

receiver applications. With an optimized LO frequency S 8.4d B Typical Conversion Gain

range of 1450MHz to 2050MHz, this mixer supports both

S 9.8d B Typical Noise Figure

high- and low-side LO injection architectures for the

S +25d Bm Typical Input IP3

1200MHz to 1700MHz and 1700MHz to 2000MHz RF

bands, respectively. S +14d Bm Typical Input 1d B Compression Point In addition to offering excellent linearity and noise perfor- S 68d Bc Typical 2LO - 2RF Spurious Rejection at mance, the device also yields a high level of component PRF = -10d Bm

integration. This device includes two double-balanced

S Dual Channels Ideal for Diversity Receiver

passive mixer cores, two LO buffers, a dual-input LO Applications selectable switch, and a pair of differential IF output

S 47d B Typical Channel-to-Channel Isolation

amplifiers. Integrated on-chip baluns allow for single-

ended RF and LO inputs. The MAX19994A requires a S Low -6d Bm to +3d Bm LO Drive

nominal LO drive of 0d Bm and a typical supply current of S Integrated LO Buffer 330m A at VCC = 5.0V, or 264m A at VCC = 3.3V.

S Internal RF and LO Baluns for Single-Ended

The MAX19994A is pin compatible with the MAX9985/ Inputs MAX9995 /MAX19985A/MAX19993 /MAX19995

S Built-In SPDT LO Switch with 48d B LO-to-LO

MAX19995A series of 700MHz to 2500MHz mixers

Isolation and 50ns Switching Time

and pin similar with the MAX19997A/MAX19999 series

S Pin Compatible with the MAX9985/MAX9995/

of 1850MHz to 4000MHz mixers, making this entire

MAX19985A/MAX19993/MAX19995/MAX19995A

family of downconverters ideal for applications where a

Series of 700MHz to 2200MHz Mixers

common PCB layout is used across multiple frequency bands. S Pin Similar to the MAX19997A/MAX19999 Series

of 1850MHz to 4000MHz Mixers

The device is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is S Single 5.0V or 3.3V Supply guaranteed over the extended temperature range, from

S External Current-Setting Resistors Provide Option

TC = -40NC to +85NC.

for Operating Device in Reduced-Power/Reduced- Performance Mode

Applications WCDMA/LTE Base Stations TD-SCDMA Base Stations

Ordering Information

GSM/EDGE Base Stations

cdma2000M Base Stations PART TEMP RANGE PIN-PACKAGE MAX19994AETX+ -40NC to +85NC 36 Thin QFN-EP*

Wireless Local Loop

MAX19994AETX+T -40NC to +85NC 36 Thin QFN-EP*

Fixed Broadband Wireless Access

+Denotes a lead(Pb)-free/Ro HS-compliant package.

Private Mobile Radios

*EP = Exposed pad. Military Systems T = Tape and reel.

cdma2000 is a registered trademark of Telecommunications Industry Association.

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.