CHR3894-QEG

37-40GHz Integrated Down Converter

Ref. : DSCHR3894-QEG2201 -19 jul 12

2/14

Specifications subject to change without notice

Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France

Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34

Electrical Characteristics

Tamb.= +25°C, VD = VD1 = +4V (1)

Symbol

Parameter

Min

Typ

Max

Unit

RF frequency range

37

40

GHz

LO frequency range

17.5

21.0

GHz

IF frequency range

DC

3.5

GHz

G

Conversion gain without attenuation

(2)

10

13

dB

G

Gain control range

8

dB

NF

Noise Figure for IF>0.1GHz

4

4.5

dB

Im_rej

Image rejection

(2)

12

15

dBc

LO Input power

0

dBm

IIP3

Input IP3 without attenuation

0

2

dBm

IIP3

Input IP3 @ all attenuations

-2

0

dBm

LO RL

LO return loss

-12

dB

RF RL

RF return loss

-7

dB

VGL

LNA DC gate voltage

-0.1

V

VGX

Multiplier DC gate voltage

-0.9

V

GC

Gain control DC voltage

-2

+0.6

V

IDt

Total Drain current (ID+ID1)

(3)

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!