MICROWAVE CORPORATION

12 - 250

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12

HMC421QS16

PCS/UMTS HIGH IP3 RFIC

DOWNCONVERTER, 1.4 - 2.3 GHz

v01.1102

General Description

Features

Functional Diagram

The HMC421QS16 is a high linearity down-con-

verter receiver IC suitiable for PCS/UMTS infra-

structure 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 ampli-

fier achieves an Input IP3 of +19 dBm. The con-

verter 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.

+19 dBm Input IP3

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 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)

62

62

62

mA

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