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參數(shù)資料
| 型號(hào)： | TDA9847T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | TV and VTR stereo/dual sound processor with digital identification |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | 7.50 MM, PLASTIC, MS-013AD, SOT-137-1, SOP-24 |
| 文件頁(yè)數(shù)： | 12/28頁(yè) |
| 文件大?。?/td> | 147K |
| 代理商： | TDA9847T |
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1995 May 23
12
Philips Semiconductors
Preliminary specification
TV and VTR stereo/dual sound processor
with digital identification
TDA9847
f
pil
pilot PLL pull-in frequency
range (referenced to
f
pil
= 54.6875 kHz)
f
osc
= 9.988 MHz
lower side
upper side
f
osc
= 10.008 MHz
lower side
upper side
f
osc
= 10.028 MHz
lower side
upper side
405
192
405
192
Hz
Hz
296
302
296
302
Hz
Hz
188
411
0
450
18.75
600
25
188
411
1.7
750
31.25
70
Hz
Hz
ms
Hz
k
mV
t
pil
f
LP
R
5
V
5(rms)
pilot PLL pull-in time
low-pass frequency response
low-pass output resistance
identification threshold voltage
(RMS value)
loaded quality factor of
resonance circuit
loaded quality factor of
resonance circuit with fixed
coil
AGC acquisition time
3 dB
Q
L
high sensitivity;
see Fig.1
sensitivity loss
2 to 3 dB; see Fig.2
40
50
12
t
acqui AGC
V
i pil(rms)
switched from
0 to 100 mV (RMS
value)
0.1
s
Identification (internal functions)
V
i tuner
C/N
identification voltage sensitivity note 4
pilot carrier-to-noise ratio for
start of identification
hysteresis
pull-in frequency range of
identification PLL (referred to
f
det stereo
= 117.48 Hz and
f
det dual
= 274.12 Hz)
28
33
-
dB
μ
V
dB/Hz
note 5
H
f
det
note 4
lower side
stereo
dual
upper side
stereo
dual
stereo
dual
2
dB
0.63
0.69
0.63
0.69
Hz
Hz
0.63
0.69
0
0
0.63
0.69
0.8
0.8
Hz
Hz
s
s
t
det
pull-in time of identification
PLL (referenced to
f
det stereo
= 117.48 Hz and
f
det dual
= 274.12 Hz)
identification window
frequency width (referred to
f
det stereo
= 117.48 Hz and
f
det dual
= 274.12 Hz)
integrator time constant
f
ident
stereo; note 6
dual; note 6
2.2
2.3
2.2
2.3
Hz
Hz
t
integr
0.94
0.94
s
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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