Specifications and information are subject to change without notice

WJ Communications, Inc

• Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com

Page 1 of 6 December 2005

CV211-1A

PCS/DCS-band Dual-Branch Downconverter

Product Information

The Communications Edge

TM

Product Features

with integrated LO and IF amplifiers

UMTS/cellular versions

Product Description

The CV211-1A is a dual-channel high-linearity down-

converter designed to meet the demanding performance,

functionality, and cost goals of current and next generation

mobile infrastructure basestations.

It provides high

dynamic range performance in a low profile surface-mount

leadless package that measures 6 x 6 mm square.

It is ideally suited for high dynamic range receiver front

ends using diversity receive channels. Functionality

includes frequency conversion and IF amplification,

while an integrated LO driver amplifier powers the

passive mixer. The MCM is implemented with reliable

and mature GaAs MESFET and InGaP HBT technology.

Typical applications include frequency downconversion

used in PCS/DCS 2.5G and 3G mobile base transceiver

stations.

Functional Diagram

Top View

Specifications

(1)

Parameters

Units

Min

Typ

Max

Comments

RF Frequency Range

MHz

1700 – 2000

LO Frequency Range

MHz

1450 – 1935

IF Frequency Range

MHz

65 – 250

See note 2

% Bandwidth around IF center frequency

%

±7.5

See note 3

IF Test Frequency

MHz

240

SSB Conversion Gain

dB

8

10

12

Temp = 25 °C

Gain Drift over Temp (-40 to 85 °C)

dB

-1.5

±0.5

+1.5

Referenced to +25 °C

Input IP3

dBm

+25

+29.5

See note 4

Input IP2

dBm

+33

+38

See note 4

Input 1 dB Compression Point

dBm

+10

See note 4

Noise Figure

dB

10.5

See note 5

LO Input Drive Level

dBm

-2.5

0

+2.5

LO-RF Isolation

dB

8

LO-IF Isolation

dB

32

Branch-Branch Isolation

dB

45

Return Loss: RF Port

dB

18

Return Loss: LO Port

dB

15

Return Loss: IF Port

dB

14

Operating Supply Voltage

V

+5

Supply Current

mA

320

380

475

Thermal Resistance

°C / W

27

Junction Temperature

°C

160

See note 6

1. Specifications when using the application specific circuit (shown on page 3) with a low side LO = 0 dBm and IF = 240 MHz in a downconverting application at 25

°C.

2. IF matching components affect the center IF frequency. Proper component values for other IF center frequencies than shown can be provided by emailing to applications.engineering@wj.com.

3. The IF bandwidth of the converter is defined as 15% around any center frequency in its operating IF frequency range. The bandwidth is determined with external components. Specifications are valid around

the total ±7.5% bandwidth. ie. with a center frequency of 240 MHz, the specifications are valid from 240 ± 18 MHz.

4. Assumes the supply voltage = +5 V. IIP3 is measured with

Δf = 1 MHz with RF

5. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies.

6. The maximum junction temperature ensures a minimum MTTF rating of 1 million hours of usage.

Absolute Maximum Rating

Parameter

Rating

Operating Case Temperature

-40 to +85

°C

Storage Temperature

-55 to +150 °C

DC Voltage

+5.5 V

Junction Temperature

+220 °C

Operation of this device above any of these parameters may cause permanent damage.

Ordering Information

Part No.

Description

CV211-1AF

PCS/DCS-band Dual-Branch Downconverter

(lead-free/RoHS-compliant QFN Pkg)

CV211-1APCB240 Fully Assembled Eval. Board, IF = 240MHz

1

2

3

4

5

6

7

21

20

19

18

17

16

15

28

27

26

25

24

23

22

8

9

10

11

12

13

14

IF Amp 2

IF Amp 1

LO Driver Amp

BIAS

GND

GND

GND

LO

GND

GND

RF 1

INPUT

GND

BIAS

GND

GND

GND

IF

IF

RF

RF

RF 2

INPUT