CHT4012-98F Datasheet, PDF (1/14 Pages) United Monolithic Semiconductors – DC-6GHz 6-BIT DIGITAL ATTENUATOR

CHT4012-98F
RoHS COMPLIANT
DC-6GHz 6-BIT DIGITAL ATTENUATOR
GaAs Monolithic Microwave IC
Description
The CHT4012-98F is a DC-6GHz monolithic
6 bit digital attenuator with a LSB = 0.5dB
offering a high dynamic range and a high
accuracy, the RMS amplitude error is
typically as low as 0.3dB. The circuit provides
low insertion loss 2.5dB associated to input
and output return losses better than 14dB. A
CMOS and TTL compatible interface is
available on chip.
The circuit is mainly dedicated to defence
and space systems and is also well suited for
a wide range of microwave applications and
systems.
The circuit is manufactured with a pHEMT
process, 0.25µm gate length and electron
beam gate lithography.
It is available in chip form
Main Features
■ Broadband performances: DC-6GHz
■ Insertion Loss (state 0): 2.5dB
■ RMS attenuation error: 0.3dB
■ RMS phase variation: 1deg
■ DC bias: V+=5V and V-=-5V
■ No decoupling capacitance on Input and
Output RF accesses
■ Chip size 2.41x1.41x0.1mm
Frequency :
0.1GHz-6GHz
Main Characteristics
Tamb.= +25°C
Symbol
Parameter
Freq
Frequency range
IL
Insertion Loss
Rms_att_er RMS of attenuation error
Rms_phivar RMS of phase variation (0.1 to 6GHz)
Min Typ Max Unit
DC
6 GHz
2.5
dB
0.3
dB
1
°
Ref. : DSCHT40121069 - 10 Mar 11
1/14
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - BP46 - 91401 Orsay Cedex France
Tel.: [phone] - Fax: [phone]