The RX Series SMT Hybrid ASH Receivers
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, specifications apply over the entire specified operating temperature and voltage ranges.
2. One or more of the following United States patents apply: 4,454,488; 4,616,197; 4,749,964; 4,902,925. Other patents are pending.
3. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the
equipment manufacturer.
4. The design, manufacturing process, and specifications of this device are subject to change without notice.
5. A variety of on-off-keyed (OOK) pulse modulation schemes are possible since digital decoding is an external function (not included
in the ASH receiver).
6. These parameters apply over the absolute minimum operating passband which is referenced to f
C
.
7. With interfering signal matched to the receiver modulation and code. See 鈥淭ypical Modulated Interference Rejection鈥?for a more
detailed view.
8. Sample repetition rates greater than 1 MHz are available in custom versions. Contact RFM for details.
9. Baseband data rates are available to 20 kbps, respectively, in custom versions. Contact RFM for details. See HX/RX Designer鈥檚
Guide for details on data rate limits.
10. The default comparator threshold (with terminal 5 not connected) is optimized for low duty-cycle, or 鈥渂ursty鈥?data and eliminates
noise output when there is no RF signal. The override threshold (with terminal 5 connected to ground) is optimized for continuous
data.
11. The ASH receiver is designed to drive a single CMOS load.
12. For ESD protection.
Absolute Maximum Ratings
Rating
Incident RF Power
Power Supply Voltage (V
CC
to Ground)(Observe ESD Precautions)
ESD (100 pF, 1.5 kW)
Case Temperature
1
Terminals 2, 3, or 7 to Ground
All Other Terminals to Ground
Value
+10
-0.3 to +4.0
鹵2000
鹵300
-40 to +100
Units
dBm
VDC
V
擄C
Block Diagram and Electrical Connections
50 ohm Antenna
Note 12
10
RF Input
9
Gnd
8
Gnd
7
Data Output
6
Voltage
Reference
1 uF
Pulse
Gen-
erator
Top View
RF
Amp.
SAW BPF
SAW
Delay
Line
RF
Amp.
AM
Detector
LPF
Comparator
Vcc
1
Baseband
Output
2
Comparator
Input
3
Gnd
4
Threshold
Override
5
+3V
10 uF
0.1 to 10 uF
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
漏1998 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
RX2020-121198
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