TDA1591T Philips Semiconductors, TDA1591T Datasheet - Page 5

• Manufacturer Part Number: TDA1591T
• Description: PLL stereo decoder and noise blanker
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
Adapting the MPX input to the level of the FM demodulator
output is realized by the value of input resistor R1
(see Fig.3). The total gain of the stereo decoder is
applicable by varying the feedback resistors R2 and R3
(see Figs 1 and 4).
In mute position and the VCO switched off (pin 7), the
output amplifiers can be used for cassette playback,
AM stereo purpose or other signal sources.
The Stereo Noise Controller (SNC) provides a smooth
mono to stereo take-over (see Fig.5).
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. Equivalent to discharging a 200 pF capacitor through a 0
1996 Sep 02
V
P
T
T
V
stg
amb
P
tot
es
PLL stereo decoder and noise blanker
SYMBOL
supply voltage (pin 5)
total power dissipation
storage temperature
operating ambient temperature
electrostatic handling; note 1
pins 1 and 16
pin 5
all other pins
PARAMETER
5
For High Cut Control (HCC), the de-emphasis time
constant can be changed to higher values
(see Figs 7 and 8). This function is controlled by an analog
input signal.
The noise blanking facility is achieved by gating the stereo
decoder output signal.
The interference detector generates a gating pulse
preferable forced by the level detector voltage of the IF
part.
series resistor.
0
0
55
40
400
300
600
MIN.
13.2
0.25
+150
+85
+400
+300
+600
MAX.
Product specification
TDA1591
V
W
V
V
V
C
C
UNIT