參數(shù)資料
型號(hào)： OM4031T
廠商： NXP SEMICONDUCTORS
元件分類： 數(shù)字信號(hào)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(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 68K
代理商： OM4031T
October 1994
9
Philips Semiconductors
Preliminary specification
Digital post-detection filter
for FSK data receivers
OM4031T
AC CHARACTERISTICS
V
DD
= 1.8 to 6.0 V; V
SS
= 0 V; T
amb
=
10 to +70
°
C; f
clk
= 38.4 kHz; unless otherwise specified.
Notes
1.
2.
3.
Filter bandwidth is guaranteed by design. Values supplied are simulation results.
Noise reduction is not factory tested, only bench evaluated.
Sensitivity improvement was bench tested on the UAA2080H demonstration board OM4747. Test signal: preamble
(101010...), f
iRF
= 469.950 MHz, deviation =
±
4.0 kHz, slope = 10 to 90% of amplitude, V
P
= 2.05 V, T
amb
= 25
°
C.
See “UAA2080 data sheet, AC characteristics”
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
External clock
f
clk
external clock frequency
30
38.4
80
kHz
Filter bandwidth
(note 1)
cut-off frequency (
3 dB)
f
co
normal bandwidth
600 bits/s
1200 bits/s
2400 bits/s
4800 bits/s
double bandwidth
600 bits/s
1200 bits/s
2400 bits/s
356
712
1425
2872
Hz
Hz
Hz
Hz
712
1425
2872
Hz
Hz
Hz
Noise reduction
(note 2)
P
i(ref)
sensitivity improvement at 3% bit error rate
note 3
600 bits/s, 250
μ
s slope
1200 bits/s, 250
μ
s slope
2400 bits/s, 125
μ
s slope
5.3
3.6
2.0
dB
dB
dB
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