Digital Radio Receiver Down
Converter Modules for 21.2 to
23.6 GHz
Technical Data
DRR1-23XX
Features
• Low Noise PHEMT MMIC
Front End Amplifier
• Image Reject Mixer
• Integrated Silicon Bipolar
VCO Local Oscillator
• Low Phase Noise
• Operated Over -30°C to
+70°C
• Excellent Tuning Linearity
• Sample Output for Phase
Locking
Description
This digital radio receiver module
provides the RF receive and down
conversion function for 23 GHz
digital radios. These modules offer
excellent phase noise perfor-
mance and can be easily phase
locked to a frequency reference.
The receiver module provides an
output power of 3 dBm at the IF
frequency and is ideal for use in
radios using 2 and 4 level FSK
modulation. The excellent low
noise figure is achieved by using
the Hewlett-Packard PHEMT
MMIC technology coupled with an
image reject mixer. The receiver
module features an integrated
ultra low noise silicon bipolar
VCO operating in the S/C band as
the local oscillator. A portion of
the oscillator output is coupled off
and is applied to a frequency
divider network. The low fre-
quency output from the frequency
divider can then be easily used to
phase lock the source. The local
oscillator output is applied to a
frequency multiplier network to
produce the desired LO frequency
to the mixer.
Applications
This digital radio receiver module
provides the total RF receive and
down conversion function in
radios operating in the 21.2 to
23.6 GHz band.
Block Diagram
Receiver Module
Tuning
Voltage
LO
X3
BPF
MMIC
AMP
MMIC
AMP
MMIC
X2A
Signal
Sample
Output
+4
MSA-1100
MMIC
AMP
BPF
RF
Input
LNA
MIXER
21.2 to
23.6 GHz
MMIC
IF
Output
5965-5087E
8-4
DRR1-23XX Absolute Maximum Ratings (T
A
= -30 to +70ºC)
Parameters
DC Circuit Power +8.5
+5.0
-5.0
Tuning Voltage
Units
Volts
Volts
Volts
Volts
Ratings
10
+5.5
-5.5
14
Notes:
1. Operation in excess of any one of these parameters may result in permanent
damage.
2. A thermal interface medium must be used between the bottom of the
package and its mating surface to ensure optimum heat transfer.
DRR1-23XX Electrical Characteristics
Parameters
RF Tuning Range
IF Frequency
IF Bandwidth
LO Frequency
Gain
Gain Flatness over 300 MHz
Noise Figure
Operating Temperature Range
Storage Temperature Range
Power Input at P-1dB
LO Leakage at I
[1]
LO Leakage at R
[2]
Return Loss RF Port
Return Loss IF Port
Image Rejection
Sample Out Frequency
Sample Out Power
Spurious Output
[3]
Phase Noise @ 100 KHz
Tuning Voltage
Input Capacitance, Nom
LO Tuning Sensitivity
LO Tuning Sensitivity Variation
DC Circuit Power: 8.5 Volts
5 Volts
-5 Volts
Case Dimensions
Max Power at Input/no damage
Humidity
Non Condensing
Condensing
Connectors
Units
GHz
MHz
MHz
GHz
dB
dB
dB
°C
°C
dBm
dBm
dBm
dB
dB
dB
MHz
dBm
dBc
dBc/Hz
V
pf
MHz/V
mA
mA
mA
inches
dBm
%
%
Min.
21.2
Typ.
630 or 1260
Max.
23.6
±20
20.57
or 19.94
18
4.5
-30
-45
-22
22.97
or 22.34
26
±1
5.5
70
85
-15
-15
-17
12
14
12
857
or 831
-10
15
957
or 931
0
-60
-82
12
500
2.0:1
300
400
30
10
85
95
WR 42 or SMA
-85
1
1,000
300
1.5 : 1
3.5 x 1.25 x 0.40
Notes:
1. LO and Harmonic/sub-harmonic leakage at I with RF terminated into a 50
Ω
load.
2. LO and Harmonic/sub-harmonic leakage at R up to 50 GHz.
3. Measured at IF port within the IF bandwidth with single tone RF input of < - 20 dBm.
8-5
DRR1-23XX Typical Performance
28
26
24
22
20
18
16
21
T = +25°C
T = –30°C
T = +70°C
Spec Min
22
23
24
5
21
22
23
24
2
21
Spec Max
IMAGE REJECTION (dB)
25
30
T = +25°C
T = –30°C
T = +70°C
NOISE FIGURE (dB)
6
Spec Max
5
GAIN (dB)
20
4
15
Spec Min
10
3
T = +25°C
T = –30°C
T = +70°C
22
23
24
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 1. Conversion Gain vs.
Frequency.
Figure 2. Image Rejection vs.
Frequency.
Figure 3. Noise Figure vs. Frequency.
-12
-14
-16
-18
-20
-22
Spec Min
-24
21
T = +25°C
T = –30°C
T = +70°C
dBc (Hz)
-40
24
TUNING VOLTAGE
FREQUENCY (GHz)
400
MODULATION SENSITIVITY (MHz/V)
-60
23
350
P
IN
(dBm)
-80
300
22
-100
-120
MODULATION
SENSITIVITY
250
-140
22
23
24
1
10
100
1000
FREQUENCY (GHz)
KHz Offset from Carrier
21
1
2
3
4
5
6
7
8
200
9 10 11 12
TUNING VOLTAGE (V)
Figure 4. Power In at P
1dB
Out vs.
Frequency.
Figure 5. Phase Noise at 23 GHz vs.
KHz Offset from Carrier.
Figure 6. Tuning Voltage vs. Frequency
and Modulation Sensitivity.
Powering Up Instructions
The -5 volts must be applied to the
receiver module
before
applying
the +5 volts. Likewise when
shutting down the receiver
module the +5 volts must be
removed before the -5 volts is
turned off. The +8.5 volts can be
turned on in any sequence. Failure
to follow this procedure could
cause permanent damage to the
module.
Mounting Instructions
Case must be mounted firmly,
with screws, to an adequate
metallic structure that has suffi-
cient thermal properties to
maintain the module case at a
temperature not to exceed 70°C.
Product Options
Specify part number followed by option. For example:
DR R 1 – 23 X X
Model Number Prefix = Digital Radio
R = Receiver Module
Internal Use
1 = SMA Connector
2 = WR-42 Waveguide Connector
1 = 630 MHz IF Frequency
2 = 1260 MHz IF Frequency
23 = 21.2 to 23.6 GHz Frequency Band
8-6
Case Dimensions
(specified in inches)
H
D/C XXXX
DRRI-23XX
S/N XXXX
1.250
GND
1F
+8.5V
-5V
+5V
+8.5V
GND
F/4
+5V
VT
GND
11x .200
2.700
3.50
1.10
8x .100
.40 MAX
11x .220
1.70
11x Ø .025
2.35
SEE DETAIL A
.120
2.430
.125
6x Ø .120 THRU
.445
.500
.445
.500
.820
.670
.170
.640
.420
Ø .067
±.001
.100
4X 4-40 UNC-2B
.120
.375
DETAIL A
8-7
FPGA/CPLD
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