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參數(shù)資料
| 型號： | OM4031T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 數(shù)字信號處理外設(shè) |
| 英文描述： | Digital post-detection filter for FSK data receivers |
| 中文描述： | 1-BIT, DSP-DIGITAL FILTER, PDSO8 |
| 封裝： | 3.90 MM, PLASTIC, SOT-96-1, SOP-8 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 68K |
| 代理商： | OM4031T |
October 1994
6
Philips Semiconductors
Preliminary specification
Digital post-detection filter
for FSK data receivers
OM4031T
Noise reduction
The performance of the OM4031T was bench tested by
measuring the sensitivity improvement (3% BER) of the
UAA2080H pager receiver at various bit rates using a
stand-alone pager receiver board (OM4647 at 470 MHz).
The results are given in Chapter “AC Characteristics” .
The OM4031T was also tested in a POCSAG pager
application using software decoding together with the
UAA2080H receiver.
For 12-digit numeric messages at 1200 bits/s the typical
sensitivity for 80% call success rate improved by 2.8 dB,
as shown in Fig.4.
Fig.4 Paging call success rate improvement; 1200 bits/s, 12-digit numeric message.
handbook, full pagewidth
success
rate
(%)
130
0
20
40
60
80
120
122
121
124
123
129
RF level (dBm)
MLC276
125
127
126
128
no filter
with OM4031T
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