TDA9847 Philips Semiconductors, TDA9847 Datasheet - Page 12

• Manufacturer Part Number: TDA9847
• Description: TV and VTR stereo/dual sound processor with digital identification
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1995 May 23
SYMBOL
t
f
R
V
Q
t
Identification (internal functions)
V
C/N
H
f
t
f
t
pil
LP
acqui AGC
det
det
ident
integr
f
5(rms)
i tuner
5
TV and VTR stereo/dual sound processor
with digital identification
L
pil
pilot PLL pull-in frequency
range (referenced to
f
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
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
f
pull-in time of identification
PLL (referenced to
f
f
identification window
frequency width (referred to
f
f
integrator time constant
pil
det stereo
det dual
det stereo
det dual
det stereo
det dual
= 54.6875 kHz)
= 274.12 Hz)
= 274.12 Hz)
= 274.12 Hz)
PARAMETER
= 117.48 Hz and
= 117.48 Hz and
= 117.48 Hz and
f
f
f
high sensitivity;
see Fig.1
sensitivity loss
2 to 3 dB; see Fig.2
V
0 to 100 mV (RMS
value)
note 5
note 4
lower side
upper side
stereo
dual
stereo; note 6
dual; note 6
osc
osc
osc
3 dB
i pil(rms)
lower side
upper side
lower side
upper side
lower side
upper side
stereo
dual
stereo
dual
= 9.988 MHz
= 10.008 MHz
= 10.028 MHz
CONDITIONS
switched from
12
192
302
411
0
450
18.75
40
0.63
0.69
0
0
2.2
2.3
0.94
405
296
188
0.63
0.69
MIN.
600
25
12
28
33
TYP.
Preliminary specification
192
302
411
1.7
750
31.25
70
50
0.1
-
2
0.63
0.69
0.8
0.8
2.2
2.3
0.94
405
296
188
0.63
0.69
MAX.
TDA9847
Hz
Hz
Hz
Hz
Hz
Hz
ms
Hz
k
mV
s
dB V
dB/Hz
dB
Hz
Hz
Hz
Hz
s
s
Hz
Hz
s
UNIT