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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

PCS/UMTS HIGH IP3 RFIC

DOWNCONVERTER, 1.4 - 2.3 GHz

v04.0810

General Description

Features

Functional Diagram

The HMC421QS16 & HMC421QS16E are high

linearity down-converter receiver ICs suitable for

PCS/UMTS infrastructure applications. The receiver

IC is designed to support UMTS applications where

a high third order intercept point (OIP3) is required.

A passive mixer coupled with a high dynamic range

IF amplifier achieves an Input IP3 of +19 dBm. The

converter provides a gain of 8 dB and 9 dB typical

single side band noise. The IC operates from positive

+5V rails and consumes 60 mA of current. The design

requires no external Baluns. The mixer supports IF

frequencies between 50 MHz and 300 MHz.

Input IP3: +19 dBm

Integrated IF & LO Amps: +10 dBm LO

Conversion Gain: 9 dB

Noise Figure: 9 dB

Single Positive Supply: +5V @ 60 mA

Typical Applications

The HMC421QS16 / HMC421QS16E is ideal for:

• GSM, GPRS & EDGE Infrastructure

• CDMA, WCDMA Infrastructure

• PHS & PDC Infrastructure

Parameter

IF= 100 MHz

IF= 250 MHz

IF= 250 MHz

Units

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Frequency Range, RF

1.4 - 1.6

1.7 - 2.0

2.0 - 2.3

GHz

Frequency Range, LO

1.3 - 1.55

1.4 - 1.95

1.7 - 2.25

GHz

Frequency Range, IF*

50 - 100

50 - 300

50 - 300

MHz

Conversion Gain

6

9

7

9

5

8

dB

Noise Figure (SSB)

11

9

9.5

dB

LO to RF Isolation

23

29

28

33

26

32

dB

LO to IF Isolation

35

42

42

52

50

60

dB

RF to IF Isolation

35

42

42

52

50

60

dB

IP3 (Input)

15

18

17

19

17

20

dBm

1 dB Compression (Input)

3

6

4

6.5

4

7

dBm

LO Input Drive Level (Typical)

+8 to +12

+8 to +12

+8 to +12

dBm

Supply Current (Idd for LO & IF)

(IF bias resistor= 6.8 Ohms)

84

105

84

105

84

105

mA

* If matching must be tuned for optimal results, see application circuit herein.