CHR3894-98F
Main Characteristics
37-40GHz Integrated Down Converter
Tamb.= +25°C, VD = VD1 = +4V
(1)
Symbol
Parameter
Min
Typ
Max
Unit
F
RF
RF frequency range
37
40
GHz
F
OL
LO frequency range
17.5
21.0
GHz
F
IF
IF frequency range
DC
3.5
GHz
(2)
G
Conversion gain without attenuation
13
dB
Gain Control range
8
dB
G
Noise Figure without attenuation, for
NF
4.5
dB
IF>0.1GHz
Im_rej
Image rejection
(2)
16
dBc
P
Lo
LO input power
0
dBm
IIP3
Input IP3 without attenuation
2
dBm
IIP3
Input IP3 @ all attenuation
0
dBm
LO RL
Input LO Return Loss
-12
dB
RF RL
Input RF Return Loss
-8
dB
LO/RF iso Isolation LO on RF @ LO
-40
dBm
2LO/RF iso Isolation LO on RF @ 2LO
-30
dBm
VGL
LNA DC gate voltage
-0.15
V
GC
Gain Control DC voltage
-2
0.6
V
VGX
Multiplier DC gate voltage
-0.9
V
IDt
Total drain current (ID+ID1)
(3)
250
mA
These values are representative of on-wafer measurements that are made without bonding
wires at the RF ports.
A bonding wire of typically 0.1 to 0.25nH will improve the matching at the accesses.
(1)
VD: LO-chain drain bias voltage.
VD1: LNA drain bias voltage.
An external combiner 90° is required on I / Q.
ID: LO-chain drain current around 125mA.
ID1: LNA drain current around 125mA, could be tuned with VGL.
(2)
(3)
Note: IDt is not affected by GC.
Electrostatic discharge sensitive device observe handling precautions!
Ref. : DSCHR38941192 - 11 Jul 11
2/12
Specifications subject to change without notice
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