TDA9847 データシートの表示（PDF） - Philips Electronics
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TDA9847 Datasheet PDF : 28 Pages
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Philips Semiconductors
TV and VTR stereo/dual sound processor
with digital identification
Preliminary specification
TDA9847
FEATURES
• Supply voltage 5 to 8 V
• Source selector
• Stereo matrix
• AF inputs for external stereo AF signals
(SCART or NICAM)
• AF outputs for main and SCART
• LED operation mode indication (stereo and dual)
• High identification reliability.
GENERAL DESCRIPTION
The TDA9847 is a stereo/dual sound processor for TV and
VTR sets. Its identification ensures safe operation by using
internal digital PLL technique with extremely small
bandwidth, synchronous detection and digital integration
(switching time maximum 2.0 s; identification concerning
the main functions).
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VP
IP
Vi(rms)
supply voltage (pin 22)
supply current (pin 22)
nominal input signal voltage
Vi1 to Vi4 (RMS value)
Vo(rms)
Vo(rms)
nominal output signal voltage
(RMS value)
clipping level of the output signal
voltages (RMS value)
ILon
Vi pil
S/N(W)
THD
Tamb
fident
input current
input voltage sensitivity of pilot
frequency
weighted signal-to-noise ratio
total harmonic distortion
operating ambient temperature
identification window width
tident on
Vi tuner
∆fpil
total identification time on
identification voltage sensitivity
pull-in frequency range of pilot PLL
CONDITIONS
without LED current
54% modulation
B/G
L
54% modulation
THD ≤ 1.5%; B/G or L
VP = 5 V
VP = 8 V
LED on
unmodulated
“CCIR468-3”
stereo
dual
fosc = 10.008 MHz
lower side
upper side
MIN.
4.5
14
TYP.
5
15
MAX. UNIT
8.8 V
20
mA
−
250 −
mV
−
500 −
mV
−
500 −
mV
1.4
1.60 −
2.4
2.65 −
−
−
12
5
−
100
66
75
−
−
0.2 0.3
0
−
+70
2.2
−
2.2
2.3
−
2.3
0.35 −
2.0
−
28
−
V
V
mA
mV
dB
%
°C
Hz
Hz
s
dBµV
−296 −
302 −
−296 Hz
302 Hz
ORDERING INFORMATION
TYPE
NUMBER
TDA9847
TDA9847T
NAME
SDIP24
SO24
PACKAGE
DESCRIPTION
plastic shrink dual in-line package; 24 leads (400 mil)
plastic small outline package; 24 leads; body width 7.5 mm
VERSION
SOT234-1
SOT137-1
1995 May 23
2
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