WJA1021 TriQuint, WJA1021 Datasheet

RF Amplifier +5V Active-Bias HBT Gain Block

WJA1021

Manufacturer Part Number

WJA1021

Description

RF Amplifier +5V Active-Bias HBT Gain Block

Manufacturer

TriQuint

Type

Gain Amplifierr

Datasheet

1.WJA1021.pdf (4 pages)

Specifications of WJA1021

Mounting Style

SMD/SMT

Number Of Channels

Operating Frequency

4000 MHz

P1db

19 dBm at 1.9 GHz

Noise Figure

6.3 dB @ 1900 MHz

Operating Supply Voltage

5 V

Supply Current

100 mA @ 5 V

Maximum Operating Temperature

+ 150 C

Package / Case

SOT-89

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

1066952

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TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: info-sales@tqs.com • Web site: www.TriQuint.com

WJA1021

+5V Active-Bias InGaP HBT Gain Block

Product Features

•

Applications

•

Specifications

1. Test conditions: 25 ºC, Supply Voltage = +5 V, 50 Ω System. S-parameters and 3OIP measured at

2. 3OIP measured with two tones at an output power of 4 dBm/tone separated by 1 MHz. The

Absolute Maximum Rating

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

Parameter

Operational Bandwidth

Test Frequency

Gain

Input Return Loss

Output Return Loss

Output P1dB

Output IP3

Noise Figure

Device Voltage

Device Current

Parameter

Storage Temperature

Supply Voltage

Thermal Resistance, Rth

Junction Temperature

Input Power

50 – 4000 MHz

17.5 dB Gain @ 1.9GHz

+19 dBm P1dB @ 1.9GHz

+36.5 dBm OIP3 @ 1.9GHz

+5V Single Supply

Low current draw (90mA)

Unconditionally stable

Internally matched to 50 Ω

Robust 1000V ESD, Class 1C

Lead-free/green/RoHS-compliant

SOT-89 package

GSM, PCS, CDMA, WCDMA

WiMAX, WiBro

Repeaters, BTS Transceivers

RFID

device pins. All other specifications measured on evaluation board.

suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.

(2)

(1)

Units

MHz

dBm

Rating

-55 to +150 °C

+6.5 V

78.8 °C / W

150 °C

+24 dBm

The WJA1021 is a cascadable gain block that offers high

linearity in a low-cost surface-mount package. At 1.9 GHz,

the WJA1021 typically provides 17.5 dB gain, +36.5 dBm

OIP3, and +19 dBm P1dB. The device is housed in a lead-

free/green/RoHS-compliant

SMT package using a NiPdAu plating to eliminate the

possibility of tin whiskering.

The WJA1021 consists of Darlington pair amplifier using a

high reliability InGaP/GaAs HBT process technology.

The amplifier has been optimized internally to offer very

high linearity performance at 1.9 GHz while drawing very

low current. The MMIC amplifier is internally matched to

50Ω and only requires DC-blocking capacitors and a bias

inductor for operation. An internal active bias is designed

to enable stable performance over temperature and allow

for operation directly from a +5V supply voltage.

The broadband amplifier can be directly applied to various

current and next generation wireless technologies such as

GSM, CDMA, W-CDMA, WiBro, and WiMAX.

WJA1021 is ideal for general purpose applications such as

LO buffering or amplification and pre-driver stages within

the 50 to 4000 MHz frequency range.

+33.5

Min

16.1

+36.5

Typ

1900

17.5

90.5

+19

-15

-10

6.3

Product Description

Max

4000

19.1

100

industry-standard

Typical Performance

3. Listed typical performance parameters measured on evaluation board.

Ordering Information

Standard tape / reel size = 1000 pieces on a 7” reel

Parameter

Frequency

S21

S11

S22

Output P1dB

Output IP3

Noise Figure

Part No.

WJA1021

WJA1021-PCB

(2)

Specifications and information are subject to change without notice

Description

+5V Active Bias InGaP HBT Gain Block

(lead-free/green/RoHS-compliant SOT-89 Package)

50 – 4000 MHz Fully Assembled Eval. Board

SOT-89

Units

MHz

dBm

The

Functional Diagram

+20.2

+36.9

19.5

200

-12

-20

5.3

Output/Bias

(3)

Function

Ground

RF IN

Input

+20.1

+38.9

18.4

900

-19

-13

5.6

Typical

GND

Page 1 of 4

+36.6

1900

16.7

+19

-29

-10

6.3

RF OUT

Pin No.

2, 4

2100

Oct. 2009

16.4

+18

+36

-25

-10

6.6

Related parts for WJA1021

WJA1021 Summary of contents

Page 1

... TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: info-sales@tqs.com • Web site: www.TriQuint.com Product Description The WJA1021 is a cascadable gain block that offers high linearity in a low-cost surface-mount package. At 1.9 GHz, the WJA1021 typically provides 17.5 dB gain, +36.5 dBm OIP3, and +19 dBm P1dB ...

Page 2

... WJA1021 +5V Active-Bias InGaP HBT Gain Block Typical Evaluation Board RF Performance Gain vs. Frequency T=25° -40C +25C +85C 0 0 1000 2000 3000 Frequency (MHz +25° 1000 TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: info-sales@tqs.com • Web site: www.TriQuint.com ...

Page 3

... Bypass Capacitor L1 RF Choke RF IN WJA1021 C1 Blocking Capacitor For optimal OIP3 performance, the ground plane to the left and right side around the backside paddle of the WJA1021 should be removed as shown in the above PCB layout. . Recommended Component Values Ref. Name L1 C1 C4, C5, C6, ...

Page 4

... TriQuint Semiconductor, Inc • Phone +1-503-615-9000 • FAX: +1-503-615-8900 • e-mail: info-sales@tqs.com • Web site: www.TriQuint.com Mechanical Information Product Marking The WJA1021 will be marked with an “A1021” designator with an alphanumeric lot code marked below the part designator. Tape and reel specifications for this part are located on the website in the “ ...

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