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PDF TB1231CN Data sheet ( Hoja de datos )
| Número de pieza | TB1231CN | |
| Descripción | PAL/NTSC 1CHIP (IF + VCD PROCESSOR) IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TB1231CN (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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TOSHIBA
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TB1231CN
TB1231CN
PAL/ NTSC 1CHIP (IF+ VCD PROCESSOR) IC
TB1231CN is the IF & Video processing IC for PAL/NTSC
color TV system. This IC demodulates PAL/ NTSC PIF, SIF
and composite video signal to RIG I B primary colors and
Audio signals. This IC can constitute Multi-Color System
by combined with TA1275AZ (SECAM Processor).
TB1231CN has the analog RIGIB interface, therefore it is
easy to make up PIP system by using this IC.
Because of the built-in video and audio switch, TB1231CN
can deal with an external channel without extra switch.
TB1231CN has an 12C BUS interface. Various controls
(Brightness, Color etc.) can be done via two bus lines.
SDIPSG-P-600-1.78
Weight 5.55g (Typ.)
961001 EBA1
eTOSHIBA is continually working to improve the quality and the 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 observe standards of safety, and to avoid
situations in which a malfunction or failure of a TOSHIBA product 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 products specifications. Also, please keep in mind the precautions
and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook.
eThe products described in this document are subject to foreign exchange and foreign trade control laws.
eThe 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
e property or other rights of TOSHIBA CORPORATION or others.
The information contained herein is subject to change without notice.
1998-05-12 1/77
1 page  
PIN
No.
PIN NAME
3 IF Vee (9V)
FUNCTION
The terminal for Vee of
PIF circuit.
Supply 9V.
In order to prevent
leakage through Vee.
inserting traps for IF
carrier and fH is
recommended.
AFT Output/
4 Self-Adj.
Output
The terminal for AFT
output and Self-adj.
output.
AFT voltage, half of RF
AGC Voltage, Red signal
or Blue signal is
outputted (Switched by
bus).
And AFT polarity is
turned over by bus. AFT
output impedance is
son.
4
5 IF GND
.....
U)
U)
00
I
0
.V.I.1..
1\.J
V1
~
-....1 TB1231CN- 5
The terminal for GND
of PIF circuit.
In order to realize good
PIF Det. performance
for low IF input,
separate IF GND wiring
from VCO GND (Pin 49)
as far as possible.
·-
INTERFACE CIRCUIT
-
...c:
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s
-0
"'
1000.
s
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c:
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N
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- "J~}- .....__
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:I'.;.:.
>
>
"":
a
"'
0
0
"'
"'
49
-
INPUT I OUTPUT
-
0.3V-4.7V
-
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5 Page 
PIN
No.
PIN NAME
FUNCTION
21 I ABCL
The terminal for ABL/
ACL control.
Control voltage range is
4.SV-6.0V.
ABL Gain & ABL start
point are selectable by
bus.
INTERFACE CIRCUIT
INPUT /OUTPUT
At Open
6V
22 I V.Ramp
......
1.0
1.0
00
I
0
U'1
..I....
I'J
............
~
-....! TB1231CN- 11
The terminal to be
connected with a
capacitor to make
V.Ramp signal.
V.Ramp amplitude is
kept constant by V.AGC
function.
...--+--t----"t------+-------{:28:
L-~-------~----~--~~4
'--------+----------------<;33:
5.5• • • • • • - • • • • • o • • H O O O H H O " ' ' ' " " " ' " '
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TB1231CN.PDF ] | |
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