Datasheet > 478ST89E

478ST89E

更新时间： 2022-09-19 12:11:15

品牌	Logo	应用领域
HITTITE		放大器
页数	文件大小	规格书
6页	231K
描述
SiGe HBT GAIN BLOCK MMIC AMPLIFIER, DC - 4 GHz

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478ST89E 数据手册

HMC478ST89 / 478ST89E

v05.0710

SiGe HBT GAIN BLOCK

MMIC AMPLIFIER, DC - 4 GHz

Typical Applications

The HMC478ST89 / HMC478ST89E is an ideal RF/IF

Features

P1dB Output Power: +18 dBm

gain block & LO or PA driver:

Gain: 22 dB

• Cellular / PCS / 3G

Output IP3: +30 dBm

• Fixed Wireless & WLAN

Cascadable 50 Ohm I/Os

Single Supply: +5V to +8V

Industry Standard SOT89 Package

Robust 1,000V ESD, Class 1C

Included in the HMC-DK001 Designer’s Kit

• CATV, Cable Modem & DBS

• Microwave Radio & Test Equipment

General Description

Functional Diagram

The HMC478ST89

& HMC478ST89E are SiGe

Heterojunction Bipolar Transistor (HBT) Gain Block

MMIC SMT ampliﬁers covering DC to 4 GHz. Pack-

aged in an industry standard SOT89, the ampliﬁer

can be used as a cascadable 50 Ohm RF/IF gain

stage as well as a LO or PA driver with up to +20 dBm

output power. The HMC478ST89(E) offers 22 dB of

gain with a +30 dBm output IP3 at 850 MHz while

requiring only 62mA from a single positive supply.

The Darlington feedback pair used results in reduced

sensitivity to normal process variations and excellent

gain stability over temperature while requiring a

minimal number of external bias components.

Electrical Speciﬁcations, Vs= 5V, Rbias= 18 Ohm, T_A= +25° C

Parameter

Min.

Typ.

Max.

0.02

Units

DC - 1.0 GHz

1.0 - 2.0 GHz

2.0 - 3.0 GHz

3.0 - 4.0 GHz

Gain

Gain Variation Over Temperature

Input Return Loss

DC - 4 GHz

0.015

dB/ °C

DC - 1.0 GHz

1.0 - 3.0 GHz

3.0 - 4.0 GHz

DC - 3.0 GHz

3.0 - 4.0 GHz

Output Return Loss

Reverse Isolation

DC - 4 GHz

0.5 - 1.0 GHz

1.0 - 2.0 GHz

2.0 - 3.0 GHz

3.0 - 4.0 GHz

dBm

Output Power for 1 dB Compression (P1dB)

0.5 - 2.0 GHz

2.0 - 3.0 GHz

3.0 - 4.0 GHz

dBm

Output Third Order Intercept (IP3)

(Pout= 0 dBm per tone, 1 MHz spacing)

DC - 2.0 GHz

2.0 - 4.0 GHz

Noise Figure

Supply Current (Icq)

Note: Data taken with broadband bias tee on device output.

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

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