digital identification. TDA9845 Datasheet

TDA9845 identification. Datasheet pdf. Equivalent

Part TDA9845
Description TV and VTR stereo/dual sound processor with digital identification
Feature INTEGRATED CIRCUITS DATA SHEET TDA9845 TV and VTR stereo/dual sound processor with digital identif.
Manufacture NXP
Datasheet
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TDA9845
INTEGRATED CIRCUITS
DATA SHEET
TDA9845
TV and VTR stereo/dual sound
processor with digital identification
Preliminary specification
Supersedes data of January 1993
File under Integrated Circuits, IC02
1995 Mar 20
Philips Semiconductors



TDA9845
Philips Semiconductors
TV and VTR stereo/dual sound processor
with digital identification
Preliminary specification
TDA9845
FEATURES
Supply voltage 5 to 8 V
Source selector
Stereo matrix
AF input for mono source
AF outputs for Main
LED operation mode indication (stereo and dual)
High identification reliability.
GENERAL DESCRIPTION
The TDA9845 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 2.1 s; identification concerning
the main functions).
QUICK REFERENCE DATA
SYMBOL
VP
IP
Vi(rms)
Vo(rms)
Vo(rms)
ILON
Vi pil
S/N(W)
THD
Tamb
fident
tident ON
Vi tuner
fpil
PARAMETER
supply voltage (pin 18)
supply current (pin 18)
nominal input signal voltage
(Vi 1, Vi 2, Vi 3) (RMS value)
nominal output signal voltage
(RMS value)
clipping level of the output signal
voltages (RMS value)
input current
input voltage sensitivity of pilot
frequency
weighted signal-to-noise ratio
total harmonic distortion
operating ambient temperature range
identification window width
total identification time ON
identification voltage sensitivity
pull-in frequency range of pilot PLL
CONDITIONS
without LED current
54% modulation
B/G
L (only for Vi 1)
54% modulation
THD 1.5%
VP = 5 V
VP = 8 V
LED ON
unmodulated
“CCIR468-3
STEREO
DUAL
fω = 10.008 MHz
lower side
upper side
MIN. TYP. MAX. UNIT
4.5 5
12 13
8.8 V
16.5 mA
250 mV
500 mV
500 mV
1.4 1.6
V
2.4 2.65
V
− − 12 mA
5 100 mV
66 75
0.2
0
2.2
2.3
0.35
28
dB
0.3 %
+70 °C
2.2 Hz
2.3 Hz
2.1 s
dBµV
296
302
296 Hz
302 Hz
ORDERING INFORMATION
TYPE
NUMBER
TDA9845
TDA9845T
NAME
DIP20
SO20
PACKAGE
DESCRIPTION
plastic dual in-line package; 20 leads (300 mil)
plastic small outline package; 20 leads; body width 7.5 mm
VERSION
SOT146-1
SOT163-1
1995 Mar 20
2





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