Digital Radio Receiver Down
Converter Modules for 37 to
40 GHz
Technical Data
DRR1-38XX
Features
鈥?Low Noise PHEMT MMIC
Front End Amplifier
鈥?Image Reject Mixer
鈥?Integrated Silicon Bipolar
VCO Local Oscillator
鈥?Low Phase Noise
鈥?Operated Over -30擄C to
+70擄C
鈥?Excellent Tuning Linearity
鈥?Sample Output for Phase
Locking
Description
This digital radio receiver module
provides the RF receive and down
conversion function for 38 GHz
digital radios.
This module offers excellent
phase noise performance and can
be easily phase locked to a
frequency reference. The receiver
module is ideal for use in radios
using 2 and 4 FSK modulation.
The low noise figure is achieved
by using the Hewlett-Packard
PHEMT MMIC technology
coupled with an image reject
mixer to minimize the noise
figure. The receiver module
features an integrated ultra low
noise silicon bipolar VCO operat-
ing in the S/C band as the local
oscillator. A portion of the oscilla-
tor output is coupled off and is
applied to a frequency divider
network. The low frequency
output from the frequency divider
can be used to phase lock the
source. The local oscillator output
is applied to a frequency multi-
plier network to produce the
desired LO frequency to the
mixer.
Applications
The digital radio receiver module
provides the total RF receive and
down conversion function in
radios operating in the 37 to
40 GHz band.
Block Diagram
Receiver Module
Tuning
Voltage
LO
X3
BPF
AMP
AMP
X3
AMP
Signal
Sample
Output
MMIC
+4
MMIC
AMP
BPF
MMIC
RF
Input
37.0 to
40.0 GHz
LNA
MIXER
IF
Output
5965-5088E
8-8