CHR3894-QEG_15 Datasheet, PDF (2/14 Pages) United Monolithic Semiconductors – 37-40GHz Integrated Down Converter

CHR3894-QEG
37-40GHz Integrated Down Converter
Electrical Characteristics
Tamb.= +25°C, VD = VD1 = +4V (1)
Symbol
Parameter
F_RF
RF frequency range
F_LO
LO frequency range
F_IF
IF frequency range
G
Conversion gain without attenuation ⁽²⁾
G Gain control range
NF Noise Figure for IF>0.1GHz
Im_rej Image rejection ⁽²⁾
P_LO
LO Input power
IIP3 Input IP3 without attenuation
IIP3 Input IP3 @ all attenuations
LO RL LO return loss
RF RL RF return loss
VGL LNA DC gate voltage
VGX Multiplier DC gate voltage
GC Gain control DC voltage
IDt
Total Drain current (ID+ID1) ⁽³⁾
Min Typ Max Unit
37
40 GHz
17.5
21.0 GHz
DC
3.5 GHz
10
13
dB
8
dB
4
4.5 dB
12
15
dBc
0
dBm
0
2
dBm
-2
0
dBm
-12
dB
-7
dB
-0.1
V
-0.9
V
-2
+0.6 V
250
mA
These values are representative of onboard measurements as defined on the drawing in
paragraph "Evaluation mother board".
(1) VD: LO-chain drain bias voltage. VD1: LNA drain bias voltage.
(2) An external combiner 90° is required on I / Q.
(3) ID: LO-chain drain current, typically 125mA.
(3) ID1: LNA drain current, typically 125mA, should be tuned with VGL.
Note: The total current (IDt) is not affected by the gain control voltage (GC).
Electrostatic discharge sensitive device observe handling precautions!
Ref. : DSCHR3894-QEG2201 -19 jul 12
2/14
Specifications subject to change without notice
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