Philips Semiconductors
PLL stereo decoder and noise blanker
Preliminary specification
TDA1592
FEATURES
• Adjustment-free voltage controlled PLL oscillator for
ceramic resonator (f = 456 kHz)
• Pilot signal dependent mono/stereo switching
• Analog control of mono/stereo change over
[stereo blend, Stereo Noise Controller (SNC)]
• Adjacent channel noise suppression (114 kHz)
• Pilot canceller
• Analog control of de-emphasis; High Cut Control (HCC)
• Reduced and controlled de-emphasis for AM operation
(pin 7 to GND)
• Applicable as source selector for AM/FM/cassette
switching
• Soft mute for silent tuning
• Separate interference noise detector
• Integrated input low-pass filter for delayed noise
blanking
• Noise blanking at MPX-demodulator outputs.
GENERAL DESCRIPTION
The TDA1592 is a monolithic bipolar integrated circuit
providing the stereo decoder function and noise blanking
for FM car radio applications.
The device operates in a power supply range of
7.5 to 12 V.
QUICK REFERENCE DATA
SYMBOL
VP
IP
Vo(rms)
THD
S/N
αcs
Vtrigg
PARAMETER
supply voltage (pin 5)
supply current
audio output signal (RMS value)
total harmonic distortion
signal-to-noise ratio
channel separation
interference voltage trigger level
MIN.
7.5
−
800
−
−
30
−
TYP.
10
15
900
0.1
82
40
10
MAX.
12
20
1 000
0.3
−
−
−
UNIT
V
mA
mV
%
dB
dB
mV
ORDERING INFORMATION
TYPE
NUMBER
TDA1592
TDA1592T
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
1996 May 31
2