HMC235QS16G(2001) View Datasheet(PDF) - Hittite Microwave

Part Name

Description

Manufacturer

HMC235QS16G
(Rev.:2001)

GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 4 GHz

Hittite Microwave 

HMC235QS16G

MICROWAVE CORPORATION

HMC235QS16G SMT 5 - BIT DIGITAL ATTENUATOR DC - 4 GHz

Schematic

FEBRUARY 2001

A1 (16) B1 (15) A2 (14)

A3 (13) A4 (12) B4 (11) A5 (10) B5 (9)

2

4dB

1dB

2dB

8dB

16dB

GND

GND

GND

Pins 1, 3 - 6 and 8 are GND.

GND

HMC235

GND

Absolute Maximum Ratings

Control Voltage Range

Storage Temperature

Operating Temperature

RF Input Power (0.5 - 4 GHz)

Insertion Loss State

Any Attenuation State

+0.5 to -8.5 Vdc

-65 to +150 deg C

-40 to +85 deg C

+27 dBm

+13 dBm

Control Voltages

State

Low

High

Bias Condition

0 to -0.2V@20uA Max

-3V@50uA Typ to -8V@500uA Max

Truth Table

Control Input

Att

4 dB Bit 1dB 2dB 8dB Bit 16dB Bit Set

A1 B1 A2 A3 A4 B4 A5 B5

Hi Lo Hi Hi Hi Lo Hi Lo Ref

Hi Lo Lo Hi Hi Lo Hi Lo 1dB

Hi Lo Hi Lo Hi Lo Hi Lo 2dB

Lo Hi Hi Hi Hi Lo Hi Lo 4dB

Hi Lo Hi Hi Lo Hi Hi Lo 8dB

Hi Lo Hi Hi Hi Lo Lo Hi 16dB

Any combination of above states will provide an attenuation

approximately equal to the sum of the bits selected.

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Web Site: www.hittite.com

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