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PDF TA1218 Data sheet ( Hoja de datos )
| Número de pieza | TA1218 | |
| Descripción | TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TA1218 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1218N, TA1218F
Audio/Video Switching IC for TVs
TA1218N/F
The TA1218N/F is an audio/video switching IC for TV sets.
Conforming to I2C bus standards, it allows you to perform
various switching operations through the bus lines by using a
microcomputer. Thanks to its 2-channel outputs, the TA1218N/F
can also be used for the PIP systems. Furthermore, since the
presence of a signal on its sync signal output pin can be
determined by a microcomputer, it is possible to check each
input/output channel (self-diagnosis).
This IC has the same pin assignments as the TA1219AN
(SDIP36), a 1-channel output version of the TA1218N/F, so
these chips are pin compatible on pins 3 to 20 and 23 to 40.
Features
• I2C bus control
• Video : 5-channel inputs and 2-channel outputs
(2 channels conforming to S system)
• Audio : 5-channel inputs and 3-channel outputs
• Self-diagnostic function
• ADC inputs based on European 21-pin standards
• Switchable subaddress
TA1218N
TA1218F
Weight
SDIP42-P-600-1.78 : 4.13 g (typ.)
QFP48-P-1014-0.80: 0.83 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
buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and
to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or
damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the
most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling
Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc..
• The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal
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
control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document
shall be made at the customer’s own risk.
• The products described in this document are subject to the foreign exchange and foreign trade laws.
• The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its
use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or
others.
• The information contained herein is subject to change without notice.
2000-09-11 1/40
1 page  
Pin Description (( ): the pin number of TA1218F)
Pin
No. Name
Function
1
Lout2
(43)
This pin is for output a sub-channel
left audio signal. The signals fed into
the chip via LinV1, LinV2, LinS1,
LinS2, or LinTV is output from this
pin. The output resistance of this pin
is 45 Ω.
Furthermore, the signal output from
this pin is pulse-converted for use in
self-diagnosis. The converted signal
is output from Sync Out.
1
(43)
This output can be muted in
combination with Rout2 by bus
control.
2
Rout2
(44)
This pin is for output a sub-channel
right audio signal. The signals fed
into the chip via RinV1, RinV2,
RinS1, RinS2, or RinTV is output
from this pin. The output resistance
of this pin is 45 Ω.
Furthermore, the signal output from
this pin is pulse-converted for use in
self-diagnosis. The converted signal
is output from Sync Out.
2
(44)
This output can be muted in
combination with Lout2 by bus
control.
TA1218N/F
Interface
Lout2
SW
Rout2
SW
3
Det in
(45)
This pin is for input a sync
separation signal. Input the signal
from Det Select to this pin with
capacitance coupling. The input
resistance of this pin is 18 kΩ.
The sync signal separated from Det
Select is outputted from Sync Out
for use in self-diagnosis.
3
(45)
1 kΩ
<Sync out>
4
Det Select
(46)
This pin is for output a sync
separation signal.
Signals VinV1, VinV2, VinTV,
Y/VinS1, Vout1, Vout2, Yout, or Cout
are outputted from this pin. The
output resistance of this pin is 35 Ω.
4
(46)
Input the signal from this pin to Det
in with capacitance coupling.
200 Ω
Det Select
SW
2000-09-11 5/40
5 Page 
Pin
No.
Name
Function
26
Sync out
(24)
This pin is for output a
self-diagnostic sync signal. The
signal separated from VinTV VinV1,
VinV2, Y/VinS1, Vout1, Vout2, Yout,
or Cout is outputted from this pin. In
addition, the signal derived from
Lout1, Rout1, Lout2, or Rout2 is also
output from this pin for use in audio
block diagnosis.
This is an open-collector output.
Make sure that the current flowing
into this pin is 2.0 mA or less.
26
(24)
Interface
TA1218N/F
<Det in>
Output select
SW
<Sound>
27
Address
(25)
This is for an I2C bus slave address
select switch. The threshold level of
this pin is 2.25 V. The following lists
the addresses :
High : 92H (write), 93H (read)
27
(25)
Low : 90H (write), 91H (read)
60 kΩ
Address
select SW
28
VinV2
(26)
This pin is for input a composite
video signal from an external source
(V2 channel). This pin can also be
used for PIP signal input. The signal
fed into this pin is presented to
Vout1, Vout2, Yout, and Cout. The
same signal is also output from Det
Select as a sync separation signal.
28
(26)
The input dynamic range of this pin
is 2.0 Vp-p and the input resistance is
30 kΩ.
1.5 kΩ
<Vout1>
<Yout>
<Cout>
1.5 kΩ
<Vout2>
1.5 kΩ
<Det Select>
29
LinV2
(27)
This pin is for input a left audio
signal from an external source (V2
channel). This pin can also be used
for PIP signal input. The signal fed
into this pin is presented to Lout1
and Lout2.
The input dynamic range of this pin
29
(27)
is 6.5 Vp-p and the input resistance is
70 kΩ.
1.5 kΩ
<Lout1>
1.5 kΩ
<Lout2>
2000-09-11 11/40
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TA1218.PDF ] | |
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