鈥?/div>
Ideal for 303.825 MHz, 3 V Data Receivers
High-Sensitivity Passive Design with No RF Oscillation
Baseband Data Rate of 10 kb/s
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 -94 dBm is achieved with no RF oscillating or regenerative circuits. This results in virtually no RF spurious emis-
sions. 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 typically 1.3 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 unlicensed 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
Digital Output
half-Frequency Spurious
f
C 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 RX1110
11
Z
IN
7
8
9
10
Sym
f
C
Notes
2, 3
4, 5
Minimum
Typical
Maximum
Units
MHz
303.825 Nominal
Pulse Modulation (OOK)
-94
-10
f
C鹵
200
50 Nominal
105
20
700
250
10
12
25
0
10
V
CC
-0.2
0.0
5
5
3.0
1.3
3.5
1.4
+85
碌s
VDC
mA
擄C
V
CC
0.2
dBm
kHz
鈩?/div>
dB
ns
kHz
kb/s
kHz
mV
p
F
V
6
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
RX1110-121198
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