Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsMAX9996ETP+

General Description

The MAX9996 high-linearity downconversion mixer pro-

vides 8.3dB gain, +26.5dBm IIP3, and 9.7dB NF for

1700MHz to 2200MHz UMTS/WCDMA, DCS, and PCS

base-station receiver applications. With a 1900MHz to

2400MHz LO frequency range, this particular mixer is

ideal for high-side LO injection receiver architectures.

Low-side LO injection is supported by the MAX9994,

which is pin-for-pin and functionally compatible with the

MAX9996.

In addition to offering excellent linearity and noise per-

formance, the MAX9996 also yields a high level of com-

ponent integration. This device includes a double-

balanced passive mixer core, an IF amplifier, a dual-

input LO selectable switch, and an LO buffer. On-chip

baluns are also integrated to allow for single-ended RF

and LO inputs. The MAX9996 requires a nominal LO

drive of 0dBm, and supply current is guaranteed to be

below 240mA.

The MAX9994/MAX9996 are pin compatible with the

MAX9984/MAX9986 815MHz to 995MHz mixers, mak-

ing this entire family of downconverters ideal for appli-

cations where a common PC board layout is used for

both frequency bands. The MAX9996 is also functional-

ly compatible with the MAX9993.

The MAX9996 is available in a compact, 20-pin, thin

QFN package (5mm x 5mm) with an exposed paddle.

Electrical performance is guaranteed over the extended

-40°C to +85°C temperature range.

Applications

UMTS/WCDMA Base Stations

DCS1800/PCS1900 EDGE Base Stations

cdmaOne™ and cdma2000

Base Stations

PHS/PAS Base Stations

Predistortion Receivers

Fixed Broadband Wireless Access

Wireless Local Loop

Private Mobile Radios

Military Systems

Microwave Links

Digital and Spread-Spectrum Communication

Systems

Features

♦ 1700MHz to 2200MHz RF Frequency Range

♦ 1900MHz to 2400MHz LO Frequency Range

(MAX9996)

♦ 1400MHz to 2000MHz LO Frequency Range

(MAX9994)

♦ 40MHz to 350MHz IF Frequency Range

♦ 8.3dB Conversion Gain

♦ +26.5dBm Input IP3

♦ +12.6dBm Input 1dB Compression Point

♦ 9.7dB Noise Figure

♦ 72dBc 2LO-2RF Spurious Rejection at

= -10dBm

♦ Integrated LO Buffer

♦ Integrated RF and LO Baluns for Single-Ended

Inputs

♦ Low -3dBm to +3dBm LO Drive

♦ Built-In SPDT LO Switch with 43dB LO1 to LO2

Isolation and 50ns Switching Time

♦ Pin Compatible with MAX9984/MAX9986 815MHz

to 995MHz Mixers

♦ Functionally Compatible with MAX9993

♦ External Current-Setting Resistors Provide Option

for Operating Mixer in Reduced Power/Reduced

Performance Mode

♦ Lead-Free Package Available

MAX9996

SiGe High-Linearity, 1700MHz to 2200MHz

Downconversion Mixer with LO Buffer/Switch

________________________________________________________________ Maxim Integrated Products 1

Pin Configuration/Functional Diagram and Typical

Application Circuit appear at end of data sheet.

19-3531; Rev 0; 12/04

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.

EVALUATION KIT

AVAILABLE

Ordering Information

*EP = Exposed paddle.

+ = Lead free. D = Dry pack. T = Tape-and-reel.

PART TEMP RANGE PIN-PACKAGE

PKG

CODE

MAX9996ETP - 40° C to + 85° C

20 Thi n QFN - E P *

5m m × 5m m

T2055- 3

MAX9996ETP-T - 40° C to + 85° C

20 Thi n QFN - E P *

5m m × 5m m

T2055- 3

MAX9996ETP+D - 40° C to + 85° C

20 Thi n QFN - E P *

5m m × 5m m

T2055- 3

M AX 9996E TP + TD - 40° C to + 85° C

20 Thi n QFN - E P *

5m m × 5m m

T2055- 3

cdma2000 is a registered trademark of Telecommunications

Industry Association.

cdmaOne is a trademark of CDMA Development Group.

Summary of content (12 pages)

PAGE 1
KIT ATION EVALU E L B AVAILA 19-3531; Rev 0; 12/04 SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch Features The MAX9996 high-linearity downconversion mixer provides 8.3dB gain, +26.5dBm IIP3, and 9.7dB NF for 1700MHz to 2200MHz UMTS/WCDMA, DCS, and PCS base-station receiver applications. With a 1900MHz to 2400MHz LO frequency range, this particular mixer is ideal for high-side LO injection receiver architectures.
PAGE 2
MAX9996 SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch ABSOLUTE MAXIMUM RATINGS θJA .................................................................................+38°C/W θJC .................................................................................+13°C/W Operating Temperature Range (Note A) ....TC = -40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................
PAGE 3
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch (MAX9996 Typical Application Circuit, VCC = +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 1700MHz to 2200MHz, fLO = 1900MHz to 2400MHz, fIF = 200MHz, fLO > fRF, TC = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +5V, PRF = -5dBm, PLO = 0dBm, fRF = 1900MHz, fLO = 2100MHz, fIF = 200MHz, TC = +25°C, unless otherwise noted.
PAGE 4
Typical Operating Characteristics (MAX9996 Typical Application Circuit, VCC = +5.0V, PLO = 0dBm, PRF = -5dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) CONVERSION GAIN vs. RF FREQUENCY TC = +85°C TC = +25°C MAX9996 toc02 9 PLO = -3dBm, 0dBm, +3dBm 8 7 1700 1900 2100 INPUT IP3 vs. RF FREQUENCY 27 INPUT IP3 (dBm) 25 TC = -25°C 2100 2300 1500 TC = +85°C 1700 1900 2100 2300 RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY INPUT IP3 vs.
PAGE 5
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch 65 60 55 75 50 70 65 60 PLO = -3dBm 55 45 1900 2100 2300 RF FREQUENCY (MHz) 85 80 75 70 TC = +25°C 65 1900 2100 PRF = -5dBm 90 TC = -25°C 60 1500 2100 80 75 70 PLO = -3dBm, 0dBm, +3dBm 65 PRF = -5dBm 90 80 75 70 VCC = 5.0V 65 VCC = 5.25V 1700 1900 2100 2300 1500 INPUT P1dB (dBm) 14 TC = +25°C TC = -25°C 1900 2100 2300 INPUT P1dB vs.
PAGE 6
Typical Operating Characteristics (continued) (MAX9996 Typical Application Circuit, VCC = +5.0V, PLO = 0dBm, PRF = -5dBm, fLO > fRF, fIF = 200MHz, unless otherwise noted.) LO SWITCH ISOLATION vs. LO FREQUENCY TC = +25°C 35 40 PLO = -3dBm, 0dBm, +3dBm 35 30 30 1900 2100 2300 LO LEAKAGE AT IF PORT vs. LO FREQUENCY 2300 2500 1700 -40 -45 PLO = +3dBm -35 -40 PLO = 0dBm -45 -50 TC = +25°C -60 -25 1900 2100 2300 2500 -35 -40 VCC = 4.
PAGE 7
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch RF-TO-IF ISOLATION vs. RF FREQUENCY 45 TC = +25°C TC = -25°C 35 50 45 40 PLO = -3dBm, 0dBm, +3dBm 1700 1900 2100 2300 45 40 VCC = 4.75V, 5.0V, 5.25V 30 1500 1700 1900 2100 1500 2300 1900 2100 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF PORT RETURN LOSS vs. RF FREQUENCY IF PORT RETURN LOSS vs. IF FREQUENCY LO SELECTED RETURN LOSS vs. LO FREQUENCY 10 15 20 PLO = -3dBm, 0dBm, +3dBm 30 15 20 25 30 VCC = 4.
PAGE 8
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch MAX9996 Pin Description PIN NAME FUNCTION 1, 6, 8, 14 VCC 2 RF Single-Ended 50Ω RF Input. This port is internally matched and DC shorted to GND through a balun. Requires an external DC-blocking capacitor. 3 TAP Center Tap of the Internal RF Balun. Bypass to GND with capacitors close to the IC, as shown in the Typical Application Circuit.
PAGE 9
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch High-Linearity Mixer The core of the MAX9996 is a double-balanced, highperformance passive mixer. Exceptional linearity is provided by the large LO swing from the on-chip LO buffer. When combined with the integrated IF amplifiers, the cascaded IIP3, 2LO-2RF rejection, and NF performance is typically 26.5dBm, 72dBc, and 9.7dB, respectively.
PAGE 10
be soldered to a ground plane on the PC board, either directly or through an array of plated via holes. Exposed Pad RF/Thermal Considerations The exposed paddle (EP) of the MAX9996’s 20-pin thin QFN-EP package provides a low thermal-resistance path to the die. It is important that the PC board on which the MAX9996 is mounted be designed to conduct heat from the EP. In addition, provide the EP with a low-inductance path to electrical ground.
PAGE 11
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch VCC T1 3 IF OUTPUT 6 R3 L1 2 L2 C14 C3 C2 GND IF- IF+ 19 20 VCC 18 17 RF C5 TAP C4 GND 16 C12 1 15 C1 RF INPUT 4 L3 IFBIAS VCC 1 C15 R1 LEXT C13 MAX9996 2 14 3 13 4 12 5 11 LO2 LO2 INPUT VCC VCC C11 GND GND C10 LOSEL LOBIAS VCC 9 LO1 LO1 INPUT 10 GND 8 7 6 VCC GND R2 VCC C6 LOSEL INPUT C7 C8 VCC C9 ___________________________________________________________________
PAGE 12
Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) QFN THIN.EPS MAX9996 SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch D2 D MARKING b C L 0.10 M C A B D2/2 D/2 k L XXXXX E/2 E2/2 C L (NE-1) X e E DETAIL A PIN # 1 I.D. E2 PIN # 1 I.D. 0.35x45∞ e (ND-1) X e DETAIL B e L L1 C L C L L L e e 0.10 C A C 0.