English
Language : 

CHT4690-QAG_15 Datasheet, PDF (14/14 Pages) United Monolithic Semiconductors – 5-30GHz ATTENUATOR
CHT4690-QAG
5-30GHz Attenuator
Biasing sequence
To obtain good performances in linearity, biasing voltage should be applied as following:
- Control of 1st stage attenuation with V1 from –5V to 0V, with V2 fixed at -5V
- Control of 2nd stage with V2 from –5V to 0V, with V1 fixed at 0V
RF IN
…
…
RF OUT
…
…
V1
Voltage
0V
V1
-5V
V2
Min.
V2
Max.
Attenuation
Ordering Information
QFN 3x3 RoHS compliant package:
CHT4690-QAG/XY
Stick: XY = 20
Tape & reel: XY = 21
Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors
S.A.S. assumes no responsibility for the consequences of use of such information nor for any infringement of
patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for use
as critical components in life support devices or systems without express written approval from United
Monolithic Semiconductors S.A.S.
Ref. : CHT4690QAG0211 - 30 Jul 2010
14/14
Specifications subject to change without notice
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09