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CHV2242A Schematic ( PDF Datasheet ) - United Monolithic Semiconductors

Teilenummer CHV2242A
Beschreibung Q-band VCO based on Ku-band Oscillator and Q-band Multiplier
Hersteller United Monolithic Semiconductors
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Gesamt 8 Seiten
CHV2242A Datasheet, Funktion
CHV2242a
Q-band VCO based on Ku-band Oscillator
and Q-band Multiplier
GaAs Monolithic Microwave IC
Description
The CHV2242a is a monolithic multifunction for
frequency generation. It integrates a Ku-band
oscillator with frequency control (VCO), a Q-
band frequency multiplier and buffer amplifiers.
For performance optimisation, two external
ports (ERC1 and ERC2) allow a passive
resonator coupling to the oscillator (at one third
of output frequency). On chip Schottky diode,
based on a P-HEMT, is used as varactor. All the
active devices are internally self biased.
The circuit is manufactured with the P-HEMT
process : 0.25µm gate length, via holes through
the substrate, air bridges and electron beam
gate lithography.
It is available in chip form.
Main Features
n Ku-band VCO + Q-band multiplier
n On chip varactor
n External resonator for centre frequency
control and phase noise optimisation
n Low phase noise
n Auxiliary output at VCO frequency
n High temperature range
n On-chip self biasing
n Automatic assembly oriented
n Chip size 2.41 x 1.18 x 0.1 mm
Main Characteristics
Tamb = +25°C
Symbol
Parameter
F_out Output centre frequency
F_vco Oscillator frequency
F_tune Output frequency tuning range
Pout Output power
F_VCO = F_out/3
ERC1
MEDIUM Q
RESONATOR
ERC2
+V
-V
x3
V_tune
Multifunction block diagram
RF_out
(F_out)
38,7
38,6
38,5
38,4
38,3
38,2
38,1
0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,1 1,2
Tuning voltage (V)
Typical tuning characteristic
(coupled to a micro-strip filter
Min Typ Max Unit
38 38.25 38.5 GHz
F_out/3
150 200
MHz
57
dBm
ESD Protections : Electrostatic discharge sensitive device observe handling precautions !
Ref. : DSCHV22421074 -15-Mar.-01
1/8 Specifications subject to change without notice
united monolithic semiconductors S.A.S.
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09






CHV2242A Datasheet, Funktion
CHV2242a
Q-band VCO
Proposed External Medium Q Resonator
The following information is about the S parameter of the resonator (plot for S21 and table
for the four parameters). These values don’t include the wire bonding equivalent
inductance L_erc1 and L_erc2 given in section “Typical Assembly and Bias Configuration”.
S21 of the proposed external resonator
S parameters of the proposed external resonator
Ref. : DSCHV22421074 -15-Mar.-01
6/8 Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09

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