Electrical Characteristics (typical values given for 3.0 Vdc power supply, 25 °C)
Characteristic
Receiver Out-of-Band Rejection, ±5% fo
Receiver Ultimate Rejection
Sleep Mode Current
Power Supply Voltage Range
Power Supply Voltage Ripple
Ambient Operating Temperature
T
A
-40
Sym
R
±5%
R
ULT
I
S
V
CC
2.2
Notes
3
3
Minimum
Typical
80
100
0.7
3.7
10
85
Maximum
Units
dB
dB
µA
Vdc
mV
P-P
°C
Notes:
1. Typical sensitivity data is based on a 10
-3
bit error rate (BER), using DC-balanced data. There are two test methods commonly used to measure
OOK/ASK receiver sensitivity, the “100% AM” test method and the “Pulse” test method. Sensitivity data is given for both test methods. See Ap-
pendix 3.8 in the
ASH Transceiver Designer’s Guide
for the details of each test method, and for sensitivity curves for a 2.2 to 3.7 V supply voltage
range at five operating temperatures. The application/test circuit and component values are shown on the next page and in the
Designer’s Guide.
2. At low data rates it is possible to adjust the ASH pulse generator to trade-off some receiver sensitivity for lower operating current. Sensitivity
data and receiver current are given at 1.2 kbps for both high sensitivity operation (R
PR
= 330 K) and low current operation (R
PR
= 2000 K).
3. Data is given with the ASH radio matched to a 50 ohm load. Matching component values are given on the next page.
4. See Table 1 on Page 8 for additional information on ASH radio event timing.
SM-20L Package Drawing
B
C
D
E
ASH Transceiver Pin Out
F
GND1
1
VCC1
AGCCAP
PKDET
BBOUT
CMPIN
RXDATA
TXMOD
LPFADJ
2
3
4
5
6
7
8
9
10
GND2
11
20
19
18
17
16
15
14
13
12
RFIO
A
GND3
CNTRL0
CNTRL1
VCC2
PWIDTH
PRATE
THLD1
THLD2
G
H
mm
Dimension
Min
A
B
10.795
9.525
1.778
3.048
0.381
0.889
3.175
1.778
Nom
10.922
9.652
1.905
3.175
0.508
1.016
3.302
1.905
Max
11.049
9.779
2.032
3.302
0.635
1.143
3.429
2.032
Min
.425
.375
.070
.120
.015
.035
.125
.070
Inches
Nom
.430
.380
.075
.125
.020
.040
.130
.075
Max
.435
.385
.080
.130
.025
.045
.135
0.80
RREF
C
D
E
F
G
H
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
RX5501-062905
Page 2 of 10
RFM [ RF MONOLITHICS, INC ]
