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TDA9840 Datasheet(PDF) 11 Page - NXP Semiconductors

Part # TDA9840
Description  TV and VTR stereo/dual sound processor with digital identification and I2C-bus control
PDF  28 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA9840 Datasheet(HTML) 11 Page - NXP Semiconductors

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1998 Jul 03
11
Philips Semiconductors
Product specification
TV and VTR stereo/dual sound processor
with digital identification and I2C-bus control
TDA9840
PXTAL
level of drive in operation
−−
5
µW
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
Ω
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
−−405
Hz
upper side
192
−
192
Hz
fω = 10.008 MHz
lower side
−296
−−296
Hz
upper side
302
−
302
Hz
fω = 10.028 MHz
lower side
−188
−−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
Ω
V4(rms)
identification threshold voltage
(RMS value)
−−
70
mV
QL
loaded quality factor of
resonance circuit
high sensitivity
40
−
50
loaded quality factor of
resonance circuit with fixed
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
Identification (internal functions)
Vi tuner
identification voltage sensitivity
(pin 5)
note 7
−
28
−
dB
µV
C/N
pilot carrier-to-noise ratio for
start of identification
note 8
−
33
−
dB/Hz
H
hysteresis
note 7
−−
2dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT



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