Circuit Design Inc. CDP02ER457 Manuel D’Utilisation
OPERATION GUIDE
.
OG_CDP-02E-R-457M_v11e Circuit Design, Inc.
5
Transmitter
Item
Specification Remarks
MIN
TYP
MAX
RF output power ( 10 mW)
mW
10
at 457.6 MHz
7
10
13
RF output power ( 10 mW)
mW
Over all frequency range and operating temp. range
4
16
RF output power ( 1 mW)
mW
0.3
1
2.6
Deviation
kHz
± 2.1
PN9 2400bps / LPF=20k
± 1.6
± 2.1
± 2.6
DI input level for Lo
V
L=GND
0
0.4
DI input level for Hi
V
Hi=3V
3
5.5
TX carrier start up
ms
50
From power on to f ± 1.5ppm
50
100
TX carrier start up at ch change
ms 35
Shift 25kHz to f ± 1.5ppm
35
85
Residual FM noise
kHz
0.17
DI=L，LPF=20k
0.17
0.4
Spurious emission
dBc
30 (50 ohm contact)
* up to 4 th harmonics
30
40
Adjacent CH power
dBc
40
PN9 2400 bps
40
Receiver
Item
Specification Remarks
MIN
TYP
MAX
Receiver type
Double superheterodyne
1st IF frequency
MHz
21.7
21.7
2nd IF frequency
kHz
450
450
Max. input level
dBm
10
10
BER （0 error / 2556 bits)
dBm -116
PN9 2400bps -106
-116
BER (1% error)
dBm
-120
PN9 2400bps
-120
Sensitivity 12dB / SINAD
dBm
-120
fm1k / dev 2.0k CCITT
-120
dB
70 (1st Mix)
70
Spurious response rejections
dB
55 (2nd Mix)
55
Adjacent CH selectivity
dB
60 dB (±25k)
60
Blocking
dB
84 dB (+/- 1MHz)
84
Intermodulation dB
50 dB (f-200k+f-100k）
Two signal method, 1% error
50
DO output level for Hi
V
Hi = Vcc
Z = 100 kohm or more
Vcc x0.8
Vcc
DO output level for Lo
V
Lo = GND
Z = 100 kohm or more
0
0.7
RSSI rising time
ms
30 (from PLL setup)
CH shift of 25kHz
30
60
Time until valid Data-out
ms
50 (from PLL setup)
CH shift of 25kHz
50
100
RSSI rising time
ms
50 (from PLL setup)
When power ON
50
100
Time until valid Data-out
ms
70 (from PLL setup)
When power ON
70
140
Spurious radiation (1st Lo)
dBm
-57 ( 50 ohm contact)
* Up to 4 th harmonics
-60
-57
mV
235 (457.6 MHz)
with -110 dBm
195
235
275
RSSI
mV
230 (457.6MHz)
with -116 dBm
155
195
235
Notes about the specification values
BER:
RF level where no error per 2556 bits is confirmed with the signal of PN9 and 2400 bps.
BER (1% error): RF level where 1% error per 2556 bits is confirmed with the signal of PN9 and 2400 bps.
Spurious response, CH selectivity:
Spurious response, CH selectivity:
Jamming signal used in the measurement is unmodulated.
Intermodulation: Ratio between the receiver input level with BER 1% and the signal level (PN9 2400 bps) added at the
points of "Receiving frequency -200 kHz" + "Receiving frequency -100 kHz" with which BER 1% is
achieved.
achieved.
Time until valid Data-out:
Valid DO is determined at the point where Bit Error Rate meter starts detecting the signal of
2400 bps, 1010 repeated signal.
Conditions:
All specifications are specified based on the data measured in a shield room using the PLL setting controller
board prepared by Circuit Design.
Measurement equipment
SG = ANRITSU communication analyzer MT2605
Spectrum analyzer = ANRITSU MS2663G / BER measure = ANRITSU MP1201G