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Toshiba Electronic Components Datasheet

TA1230Z Datasheet

TV SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR EIAJ SYSTEM

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TA1230Z pdf
TA1230Z
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1230Z
TV SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR EIAJ SYSTEM
The TA1230Z incorporates the functions required for EIAJ system
TV sound multiplex broadcast demodulation and a trap for
eliminating facsimile broadcast signals multiplexed in the sound
multiplex broadcasting band. Automatic adjustment based on a
32 fH-oscillator makes adjustments other than separation
unnecessary.
FEATURES
l Self-adjusting filter and discriminator circuit based on a 32
fH-oscillator
l Built-in trap eliminates facsimile broadcast signals
BLOCK DIAGRAM
Weight: 1.00 g (Typ.)
000707EBA1
· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general
can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the
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In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the
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Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc..
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equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are
neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or
failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy
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TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its
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· The information contained herein is subject to change without notice.
2002-12-20 1/12


Toshiba Electronic Components Datasheet

TA1230Z Datasheet

TV SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR EIAJ SYSTEM

No Preview Available !

TA1230Z pdf
PIN FUNCTIONS
PIN
No.
PIN NAME
FUNCTION
Cuts the DC component of the circuit
shaping the waveform of the
AM-detected cue signal. Connect a 0.1
µF capacitor between this pin and
1 Q signal offset cancellation GND.
A 0.01 µF capacitor may cause lower
discrimination sensitivity because of
the fluctuations in a capacitor of that
rating.
2 GND
3 Forced mono
Setting this pin to 5 V forcibly sets the
mode to mono. This does not affect the
discrimination output or bilingual
broadcast decoding.
As this is the PNP transistor input
circuit, leaving the pin open sets the
mode to forced mono. However, do not
leave the pin open.
4 Mode switching
The voltage of this pin is used to
control the output state for bilingual
broadcasting.
0 V : Main sound
2.5 V : Main / sub sound
5 V : Sub sound
9 V : Main / sub sound
5 Sub offset elimination
Cuts the DC component of the sub
sound signal processing section.
Connect a 10 µF capacitor between
this pin and GND.
TA1230Z
INTERFACE CIRCUIT
6 Main offset elimination
Cuts the DC component of the
main-sound signal processing section.
Connect a 10 µF capacitor between
this pin and GND.
2002-12-20 2/12


Part Number TA1230Z
Description TV SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR EIAJ SYSTEM
Maker Toshiba Semiconductor
Total Page 12 Pages
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