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Ideal for 303.825 MHz, 3 V Data Receivers
High-Sensitivity Passive Design with No RF Oscillation
Baseband Data Rate of 2400 b/s
Simple to Apply with External Parts Count
Rugged, Surface-Mount Package with 130 mm
2
Footprint
This amplifier-sequenced hybrid (ASH) receiver is based on several leading-edge
technologies that allow outstanding performance in a small and simple-to-apply
module. Two surface-accoustic-wave (SAW) devices are employed. Front-end fil-
SM-10 Case
tering by a low-loss coupled-resonator SAW filter provides excellent selectivity.
Typical sensitivity better than -100 dBm is achieved with no RF oscillating or regen-
erative 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 3 V lithium battery with typically1.1 mA current. For system design flexibility, the baseband
output is accessible, and the comparator threshold can be changed externally between two settings. Typical applications include unli-
censed wireless remote-controls, security and data-link devices operating in the USA under FCC part 15, in Australia, in Japan, and in
Korea.
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
half-Frequency Spurious
f
C 鹵 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 RX1100
11
Z
IN
7
8
9
Sym
f
C
Notes
2, 3
4, 5
Minimum
Typical
Maximum
Units
MHz
303.825 Nominal
Pulse Modulation (OOK)
-100
-10
f
C
鹵200
50 Nominal
105
20
700
250
2.4
2.4
25
0
10
V
CC
-0.2
0.0
9
9
3.0
1.1
3.5
1.25
+85
碌s
VDC
mA
擄C
V
CC
0.2
dBm
kHz
W
dB
ns
kHz
kb/s
kHz
mV
p
F
V
6
10
Digital Output
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
漏1998 by RF Monolithics, Inc. The stylized RFM logo and RFM are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
RX1100-121198
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