Document Outline
- List of Figures
- 1. Conversion Gain vs. Frequency
- 2. Image Rejection vs. Frequency
- 3. Noise Figure vs. Frequency
- 4. Power In at P 1dB Out vs. Frequency
- 5. Phase Noise at 40 GHz vs. KHz Offset from Carrier
- 6. Tuning Voltage vs. Frequency and Modulation Sensitivity
- Features
- Block Diagram
- Description
- Applications
- DRR1-38XX Absolute Maximum Ratings (T A = -30 to +70C)
- DRR1-38XX Electrical Characteristics
- DRR1-38XX Typical Performance
- Powering Up Instructions
- Product Options
- Mounting Instructions
- Case Dimensions
8-8
Digital Radio Receiver Down
Converter Modules for 37 to
40 GHz
Technical Data
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
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
DRR1-38XX
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
MMIC
MMIC
MMIC
MIXER
BPF
BPF
RF
Input
IF
Output
Signal
Sample
Output
Tuning
Voltage
Receiver Module
37.0 to
40.0 GHz
LO
X3
+4
AMP
AMP
AMP
LNA
AMP
X3
5965-5088E
8-9
DRR1-38XX Absolute Maximum Ratings (T
A
= -30 to +70C)
Parameters
Units
Ratings
DC Circuit Power +8.5
Volts
10
+5.0
Volts
+5.5
-5.0
Volts
-5.5
Tuning Voltage
Volts
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.
DRR1-38XX Electrical Characteristics
Parameters
Units
Min.
Typ. Max.
RF Tuning Range
GHz
37
39.5
40
IF Frequency
MHz
630 or 1260
IF Bandwidth
MHz
20
LO Frequency
GHz
RF IF
Gain
[1]
dB
18
27
16 Min
Gain Flatness over 300 MHz
dB
1
1.5
Noise Figure
dB
7.5
9
9.5 Max
Operating Temperature Range
C
-30
70
Power Input at P-1dB
dBm
-20
-17
LO Leakage at I
[2]
dBm
-15
LO Leakage at R
[3]
dBm
-15
Return Loss RF Port
[4]
dB
8
10
5 Min
Return Loss IF Port
dB
14
Image Rejection
dB
10
13
Sample Out Frequency
MHz
1,010
1,080
1,094
Sample Out Power
dBm
-10
0
Spurious Output
[5]
dBc
-60
Phase Noise @ 100 KHz
dBc/Hz
-83
-80
Tuning Voltage
V
1
12
15 Max
Input Capacitance, Nom
pf
1,000
LO Tuning Sensitivity
MHz/V
400
500
LO Tuning Sensitivity Variation
1.5 : 1
DC Circuit Power: 8.5 Volts
mA
270
350
5 Volts
mA
470
650
-5 Volts
mA
20
30
Case Dimensions
inches
3.5 x 1.25 x 0.40
Max Power at Input/no damage
dBm
7
Humidity Non Condensing
%
85
Condensing
%
95
Connectors
WR 28
Notes:
1.
Gain degrades to 16 dB minimum from 39.5 to 40 GHz.
2.
LO and Harmonic/sub-harmonic leakage at I with RF terminated into a waveguide.
3.
LO and Harmonic/sub-harmonic leakage at R up to 50 GHz.
4.
RF port return loss degrades to 5 dB minimum from 39.5 to 40 GHz.
5.
Measured at IF port within the IF bandwidth with single tone RF input of < - 20 dBm.
Extended
Range
39.5 40.0
8-10
DRR1-38XX Typical Performance
Figure 4. Power In at P
1dB
Out vs.
Frequency.
1
10
100
1000
KHz Offset from Carrier
Figure 5. Phase Noise at 40 GHz vs.
KHz Offset from Carrier.
-120
-80
-100
-20
-60
-40
dBc
(Hz)
2
4
6
8
10
12
14
TUNING VOLTAGE (V)
Figure 6. Tuning Voltage vs. Frequency
and Modulation Sensitivity.
400
300
500
200
600
FREQUENCY
(GHz)
MODULATION SENSITIVITY (MHz/V)
FREQUENCY (GHz)
P
IN
(dBm)
T = +25
C
T = 30
C
T = +70
C
36
38
37
41
39
TUNING VOLTAGE
MODULATION
SENSITIVITY
40
36.5
39.5
38.5
37.5
40.5
FREQUENCY (GHz)
Figure 1. Conversion Gain vs.
Frequency.
16
18
20
22
28
26
24
CONVERSION GAIN
(dB)
T = +25
C
T = 30
C
T = +70
C
FREQUENCY (GHz)
Figure 2. Image Rejection vs.
Frequency.
8
10
12
14
16
18
20
22
IMAGE REJECTION
(dB)
36.5
38.5
39.5
37.5
40.5
T = +25
C
T = 30
C
T = +70
C
Figure 3. Noise Figure vs. Frequency.
NOISE FIGURE
(dB)
FREQUENCY (GHz)
5
6
7
8
9
36.5
38.5
39.5
37.5
40.5
-25
-20
-15
-10
-5
36.5
38.5
39.5
37.5
40.5
T = +25
C
T = 30
C
T = +70
C
Spec Min
Spec Min
Spec Min
Spec Max
Spec Max
Product Options
Specify part number followed by option. For example:
DR R 1 38 X X
Model Number Prefix = Digital Radio
R = Receiver Module
Internal Use
3 = WR-28 Waveguide Connector
1 = 630 MHz IF Frequency
2 = 1260 MHz IF Frequency
38 = 37 to 40 GHz Frequency Band
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
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.
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.
8-11
Case Dimensions
(specified in inches)
1.250
11x .200
2.700
3.50
1.10
8x .100
1.70
2.35
.120
11x .220
11x .025
.530
.112
.224
.500
4X 4-40 UNC-2B
.110
DETAIL A
SEE DETAIL A
.700
6x
.125
.120 THRU
.445
.500
.500
.445
GND
GND
GND
1F
VT
+8.5V
-5V
+5V
+8.5V
+5V
DRRI-38XX
S/N XXXX
D/C XXXX
F/4
H
2.430
.40 MAX
.328
.067
.001
.100
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