ASH Transceiver Application Circuit
ASK Configuration
ASH Transceiver Application Circuit
OOK Configuration
+3
+3
VDC
VDC
CRFB2
T/R
CDCB
+
CRFB2
CDCB
+
RTH1
RTH1
RPW
RPR
14
RPW
RPR
14
TRMode
Control
19
GND
3
18
CNT
RL0
17
16
VCC
2
15
13
12
THLD
2
RTH2
19
GND
3
18
17
16
VCC
2
15
13
THLD
1
12
THLD
2
CNT
RL1
P
P
THLD
1
LAT
CNT
RL0
CNT
RL1
P
P
LAT
WIDTH RATE
WIDTH RATE
RFIO
RREF
RFIO
RREF
11
10
20
1
11
10
20
1
RREF
TOP VIEW
RREF
TOP VIEW
LESD
GND1
GND2
LESD
GND1
GND2
VCC
1
AGC
CAP
PK
DET
BB
CMP
IN
RX
DATA
TX
MOD
LPF
ADJ
VCC
1
AGC
CAP
PK
DET
BB
CMP
IN
RX
DATA
TX
MOD
LPF
ADJ
OUT
OUT
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
LRFB
RLPF
LRFB
RLPF
RBBO
CRFB1
RTXM
RTXM
CBBO
+3
VDC
CRFB1
CBBO
+3
VDC
CLPF
CAGC CPKD
ModulationInput
DataOutput
ModulationInput
DataOutput
Tranceiver Set-Up, 3.0 Vdc, -40 to +85 °C
Item
Symbol
DR
OOK
OOK
ASK
Units
Notes
Encoded Data Rate
2.4
19.2
115.2
8.68
34.72
2200
0.001
0.0027
0
kbps
µs
µs
pF
µF
µF
K
see page 1& 2
single bit
NOM
Minimum Signal Pulse
Maximum Signal Pulse
AGCCAP Capacitor
PKDET Capacitor
BBOUT Capacitor
BBOUT Resistor
SP
416.67
52.08
MIN
MAX
AGC
SP
1666.68
208.32
4 bits of same value
±10% ceramic
±10% ceramic
±10% ceramic
±5%
C
-
-
C
C
R
-
0.1
-
PKD
BBO
BBO
0.015
12
0
LPFAUX Capacitor
TXMOD Resistor
C
0.0047
8.2
-
-
µF
K
±5%
LPF
R
8.2
8.2
±5%, for 1.5 dBm output
±5%
TXM
LPFADJ Resistor
R
330
100
15
K
LPF
RREF Resistor
R
100
100
100
K
±1%
REF
THLD2 Resistor
R
R
-
-
100
K
±1%, for 6 dB below peak
±1%, typical values
±5%
TH2
TH1
THLD1 Resistor
0
0
330
10
K
PRATE Resistor
R
330
160
K
PR
PW
PWIDTH Resistor
DC Bypass Capacitor
RF Bypass Capacitor 1
RF Bypass Capacitor 2
RF Bypass Bead
R
270 to GND
4.7
270 to GND
4.7
1000 to Vcc
4.7
K
±5%
C
µF
pF
pF
vendor
nH
nH
tantalum
DCB
C
C
100
100
100
±5% NPO
RFB1
RFB2
100
100
100
±5% NPO
L
Fair-Rite
82
Fair-Rite
82
Fair-Rite
82
2506033017YO or equivalent
50 ohm antenna
50 ohm antenna
RFB
Antenna Tuning Inductor
Shunt Tuning/ESD Inductor
L
AT
L
33
33
33
ESD
CAUTION: Electrostatic Device. Observe precautions when handling.
RF Monolithics, Inc.
RFM Europe
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
TR3003-070105
Page 3 of 12
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RFM [ RF MONOLITHICS, INC ]
