40REC0770-QB Просмотр технического описания (PDF) - Mimix Broadband

Номер в каталоге

Компоненты Описание

производитель

40REC0770-QB

35.0-45.0 GHz GaAs Receiver QFN, 7x7 mm

Mimix Broadband 

35.0-45.0 GHz GaAs Receiver

QFN, 7x7 mm

October 2006 - Rev 05-Oct-06

40REC0770-QB

App Note [1] Biasing - The device is operated by biasing VD=4.0V with ID=180 mA. Additionally, a mixer and doubler bias are also required

with VG2=-0.5V. Adjusting Vg2 above or below this value can adversely affect conversion gain, image rejection and intercept point

performance. It is recommended to use active biasing to keep the currents constant as the RF power and temperature vary; this gives the

most reproducible results. Depending on the supply voltage available and the power dissipation constraints, the bias circuit may be a single

transistor or a low power operational amplifier, with a low value resistor in series with the drain supply used to sense the current. The gate of

the pHEMT is controlled to maintain correct drain current and thus drain voltage. The typical gate voltage needed to do this is -0.3V. Typically

the gate is protected with Silicon diodes to limit the applied voltage. Also, make sure to sequence the applied voltage to ensure negative

gate bias is available before applying the positive drain supply.

MTTF

MTTF is calculated from accelerated life-time data of single devices and assumes an isothermal back-plate.

1.E+05

40REC0770-QB, MTTF (yrs) vs. Backplate Temperature (°C)

1.E+04

1.E+03

1.E+02

1.E+01

1.E+00

55

Typical Application

RF IN

37.0-39.5 GHz

65

75

85

Temperature (°C)

Bias Conditions: Vd=4.0V, Id=180 mA

40REC0770-QB

Coupler

95

BPF

IF Out

2 GHz

LNA

IR Mixer

Buffer

AGC Control

X2

LO(+2.0dBm)

17.5-18.75 GHz (USB Operation)

19.5-20.75 GHz (LSB Operation)

Mimix Broadband MMIC-based 35.0-45.0 GHz Receiver Block Diagram

(Changing LO and IF frequencies as required allows design to operate as high as 46 GHz)

Mimix Broadband's 30.0-46.0 GHz 40REC0770-QB GaAs MMIC Receiver can be used in saturated radio applications and linear modulation

schemes up to 128 QAM.

Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099

Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com

Page 5 of 7

Characteristic Data and Specifications are subject to change without notice. ©2006 Mimix Broadband, Inc.

Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept

their obligation to be compliant with U.S. Export Laws.

Share Link: