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Ideal for 916.5 MHz, 3 V Data Receivers in Europe
High-Sensitivity Passive Design with No RF Oscillation
Use with HX2000 for 19.2 kbps Data Rate
Simple to Apply with External Parts Count
Rugged, Surface-Mount Package with 130 mm
2
Footprint
SM-10 Case
This amplifier-sequenced hybrid (ASH) receiver is based on several leading-edge
technologies that allow outstanding performance in a small and simple-to-apply mod-
ule. Two surface-accoustic-wave (SAW) devices are employed. Front-end filtering
by a low-loss coupled-resonator SAW filter provides excellent selectivity. Typical sensitivity better than -72 dBm is achieved with no
RF oscillating or regenerative circuits. This results in virtually no RF spurious emissions. A low-loss SAW delay line provides the time
delay necessary to sequence the two RF amplifiers. Time sequencing of the RF gain eliminates the need for frequency conversion prior
to AM detection. This receiver is designed to operate from a 3 V lithium battery with typically 2.5 mA current. For system design flex-
ibility, the baseband output is accessible, and the comparator threshold can be changed externally between two settings. Typical appli-
cations include unlicensed wireless remote-controls, and digital data links operating in the USA under FCC Part 15.249 and in Canada
under DOC RSS-210.
Electrical Characteristics
Characteristic
Operating Radio Frequency
Received Carrier Modulation Type
RF Band
Sensitivity
Operating Signal Strength
Channel Width
Input Impedance
Interference Rejection
Sequencing (Sampling)
Baseband
Comparator Threshold
Digital Output
Half-Frequency Spurious
f
C 卤 1 MHz
Sample Duration
Sample Repetition Rate
Data Rate
3 dB Bandwidth
Default (Terminal 5 NC)
Override (Terminal 5 LOW)
CMOS Load Capacitance
Output HIGH Voltage
Output LOW Voltage
Rise Time
Fall Time
Power Supply
Operating Voltage
Current at 25C and 3.0 V
Operating Ambient Temperature
Lid Symbolization (in addition to Lot and/or Date Codes)
V
OH
V
OL
t
R
t
F
V
CC
I
CC
T
A
1
1
2.7
-40
RFM RX2020
11
Z
IN
7
8
9
10
Sym
f
C
Notes
2, 3
4, 5
Minimum
Typical
916.50 Nominal
Pulse Modulation (OOK)
-72
-10
f
C
卤200
50 Nominal
80
15
700
625
20
24
25
0
10
V
CC
-0.2
0.0
3
3
3.0
2.5
3.5
3.0
+85
碌s
VDC
mA
掳C
V
CC
0.2
Maximum
Units
MHz
dBm
kHz
W
dB
ns
kHz
kb/s
kHz
mV
p
F
V
6
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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