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參數(shù)資料
| 型號： | TDA9840T-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 160K |
| 代理商： | TDA9840T-T |
1998 Jul 03
11
Philips Semiconductors
Product specication
TV and VTR stereo/dual sound processor
with digital identication and I2C-bus control
TDA9840
PXTAL
level of drive in operation
5
W
VOSC(p-p)
oscillator operating voltage
(peak-to-peak value)
500
550
600
mV
Pilot processing
Vi pil(rms)
pilot input voltage level at pin 5
(RMS value)
unmodulated
5
100
mV
Ri pil
pilot input resistance
500
1000
k
m
modulation depth
AM
25
50
75
%
fpil
pilot PLL pull-in frequency
range (referred to
fpil = 54.6875 kHz)
fω = 9.988 MHz
lower side
405
Hz
upper side
192
192
Hz
fω = 10.008 MHz
lower side
296
Hz
upper side
302
302
Hz
fω = 10.028 MHz
lower side
188
Hz
upper side
411
411
Hz
tpil
pilot PLL pull-in time
0
1.7
ms
fLP
low-pass frequency response
3 dB
450
600
750
Hz
R3
low-pass output resistance
18.75
25
31.25
k
V4(rms)
identication threshold voltage
(RMS value)
70
mV
QL
loaded quality factor of
resonance circuit
high sensitivity
40
50
loaded quality factor of
resonance circuit with xed
coil
sensitivity loss
2 to 3 dB; see Fig.2
12
tacqui AGC
AGC acquisition time
Vi pil(rms) switched from
0 to 100 mV RMS
value
0.1
s
Identication (internal functions)
Vi tuner
identication voltage sensitivity
(pin 5)
note 7
28
dB
V
C/N
pilot carrier-to-noise ratio for
start of identication
note 8
33
dB/Hz
H
hysteresis
note 7
2dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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