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Toshiba Electronic Components Datasheet

TA1231F Datasheet

UHF/VHF TUNER IC

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TA1231F pdf
TENTATIVE
TA1231F,TA1231FN
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT
SILICON MONOLITHIC
TA1231F,TA1231FN
UHF / VHF TUNER IC
The TA1231F and TA1231FN are TV tuner ICs which integrate
on a single chip IF amp, a mixer / oscillator for VHF band and
cable TV, together with a mixer / oscillator for UHF band.
The package is an SSOP16-P-225A (1-mm pitch) or
SSOP16-P-225B (0.65-mm pitch) optimal for surface mounting to
help make tuners more compact.
FEATURES
= Supply voltage
= VHF, CATV bands
= UHF band
= Built-in IF amp
= IF unbalanced output
: 9V
: MIX · OSC
: MIX · OSC
Note:
These devices are easy to be damaged by high static
voltage or electric fields.
In regards to this, please handle with care.
Weight
SSOP16-P-225-1.00A : 0.14g (Typ.)
SSOP16-P-225-0.65B : 0.07g (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.
2001-02-23 1/12


Toshiba Electronic Components Datasheet

TA1231F Datasheet

UHF/VHF TUNER IC

No Preview Available !

TA1231F pdf
BLOCK DIAGRAM
TA1231F,TA1231FN
TERMINAL FUNCTION
PIN No.
PIN NAME
FUNCTION
1
16
VHF oscillator
2
3
4
UHF oscillator
5
VHF oscillator.
To prevent abnormal oscillation,
connect a resistor between pin 16 and
the external capacitor.
UHF oscillator.
Pin 5 uses both as band
switch.Connecting pin 5 to VCC via
22ksets to UHF ; connecting pin 12
to GND sets to VHF.
To use VHF SW voltage OPEN rather
than GND, connect a resistor of
around 10k. Changing capacitor of
6pF connected to pins 2 and 5 of test
circuit 2 varies the oscillation
frequency range.
Be careful not to set the constant too
large, because abnormal oscillation
may occur.
INTERFACE
2001-02-23 2/12


Part Number TA1231F
Description UHF/VHF TUNER IC
Maker Toshiba Semiconductor
Total Page 12 Pages
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