參數(shù)資料
型號(hào)： 935263704557
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： AM/FM, AUDIO DEMODULATOR, PQFP44
封裝： PLASTIC, QFP-44
文件頁(yè)數(shù)： 50/71頁(yè)
文件大?。?/td> 304K
代理商： 935263704557
2000 Aug 04
54
Philips Semiconductors
Product specication
Digital TV sound demodulator/decoder
TDA9874A
CL
load capacitance
100
pF
ILOZ
3-state leakage current
Vi = 0 to VDDD
±10
A
SIF1 and SIF2 analog inputs
VSIF(max)(p-p)
maximum composite SIF input
voltage before clipping
(peak-to-peak value)
SIF input level adjustment
0dB
941
mV
SIF input level adjustment
10 dB
2976
mV
VSIF(min)(p-p)
minimum composite SIF input
voltage for lower limit of AGC
(peak-to-peak value)
SIF input level adjustment
0dB
59
mV
SIF input level adjustment
10 dB
188
mV
AGC
AGC range
24
dB
fi
input frequency
4
9.2
MHz
Ri
input resistance
AGCLEV = 0
10
k
Ci
input capacitance
7.5
11
pF
f
FM
FM deviation
B/G standard; THD < 1%
±100
kHz
f
FM(FS)
FM deviation full-scale level
terrestrial FM; level
adjustment 0 dB;
demodulator lter bandwidth
set to narrow
±150
kHz
f
FM(max)
maximum FM deviation in high
deviation mode
B/G standard; THD < 1%;
demodulator lter bandwidth
set to extra wide
±335
kHz
C/NFM
FM carrier-to-noise ratio
NFM bandwidth = 6 MHz;
white noise for S/N = 40 dB;
“CCIR468-2”; quasi peak
77
C/NN
NICAM carrier-to-noise ratio
NN bandwidth = 6 MHz;
bit error rate = 103;
white noise
66
α
ct
crosstalk attenuation
SIF1 to SIF2
fi = 4 to 9.2 MHz
50
dB
Demodulator performance
Vo(nom)(rms)
nominal level output voltage
(RMS value)
note 1
400
500
600
mV
THD + N
total harmonic distortion plus
noise
from FM source to any
output; fi = 1 kHz; bandwidth
20 Hz to 20 kHz;
Vo = 1 V (RMS)
0.3
0.5
%
from NICAM source to any
output; fi = 1 kHz; bandwidth
20 Hz to 20 kHz;
Vo = 1 V (RMS)
0.1
0.3
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
dB
Hz
-------
dB
Hz
-------
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