XR1005-QD_07 Datasheet, PDF (5/7 Pages) Mimix Broadband – 19.0-26.0 GHz GaAs Receiver QFN, 7x7 mm

19.0-26.0 GHz GaAs Receiver
QFN, 7x7 mm
August 2007 - Rev 12-Aug-07
R1005-QD
App Note [1] Biasing - The device is operated by separately biasing Vd1 and Vd2 with Vd1=4.0V, Id1=130mA and
Vd2=4.0V, Id2=116mA. It is also 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 Table (TBD)
These numbers were calculated based on accelerated life test information and thermal model analysis received from the fabricating foundry.
Backplate
Temperature
55 deg Celsius
75 deg Celsius
95 deg Celsius
Channel
Temperature
deg Celsius
deg Celsius
deg Celsius
Rth
MTTF Hours
FITs
C/W
E+
E+
C/W
E+
E+
C/W
E+
E+
Bias Conditions: Vd1=4.0V, Vd2=4.0V, Id1=130 mA, Id2=116 mA
Typical Application
XR1005-QD
RF IN
LNA
21.2-23.6 GHz
IR Mixer
BPF
Coupler
IF Out
2 GHz
AGC Control
LO(+2.0dBm)
9.6-10.8 GHz (USB Operation)
11.6-12.8 GHz (LSB Operation)
Mimix Broadband MMIC-based 19.0-26.0 GHz Receiver Block Diagram
(Changing LO and IF frequencies as required allows design to operate as high as 26.0 GHz)
Mimix Broadband's 19.0-26.0 GHz XR1005-QD GaAs Receiver can be used in saturated radio applications and linear modulation schemes up
to 16 QAM. The receiver can be used in upper and lower sideband applications from 19.0-26.0 GHz.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: [phone] Fax: [phone] mimixbroadband.com
Page 5 of 7
Characteristic Data and Specifications are subject to change without notice. ©2007 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.