TA1304F/N
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1304F,TA1304N
TV-SOUND PROCESSOR
FEATURES
Sound processor
l
l
l
l
l
l
2 ch inputs (L-ch, R-ch)
3 ch outputs (L-ch, R-ch, W-ch)
Volume, balance, treble, bass and woofer level control
Built-in woofer low-pass filter
Input matrix circuit
ALS (Automatic Level Suppressor) circuit
I / O port circuit
l
2 ch input ports
l
2 ch output ports
Weight:
SSOP24-P-300-1.00: 0.33 g (Typ.)
SDIP24-P-300-1.78: 1.22 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.
2001-02-16
1/31
TA1304F/N
TERMINAL FUNCTION
PIN
No.
NAME
FUNCTION
INTERFACE CIRCUIT
1
2
Port 1
Port 2
These are logical input terminals.
Threshold voltage is 2.3 V.
The input level of these terminals are
2
read by MCU through I C bus lines.
3
Port 3
A open collector type output
2
controlled by MPU through I C bus
lines.
Maximum sink current is 1 mA.
4
Port 4
A emitter follower type output
2
controlled by MPU through I C bus
lines.
This terminal can 3 level output, 0 V,
2.5 V and 5 V.
Maximum souce current is 2 mA,
and maximum sink current is
250 µA.
5
Offset
cancelling filter
DC offset cancelling filter for Woofer
channel.
Connect a capacitor (10 µF)
between this terminal and GND.
6
8
L-ch input
R-ch input
Audio input terminals.
2001-02-16
3/31
TA1304F/N
PIN
No.
7
GND
NAME
FUNCTION
GND terminal.
INTERFACE CIRCUIT
―
9
Bias filter
Filter for noise rejection of the bias.
Connect a capacitor (4.7 µF)
between this terminal and GND.
10
15
Bass LPF (R)
Bass LPF (L)
LPFs for bass control circuits.
Connect capacitors (0.027 µF)
between each terminals and GND.
11
14
Treble HPF (R)
Treble HPF (L)
HPFs for bass control circuits.
Connect capacitors (8200 pF)
between each terminals and GND.
13
12
16
W-ch output
R-ch output
L-ch output
Audio output terminals.
Bass boost function, addition woofer
channel signal to main channel
signals, is available.
Using ALS (Automatic Level
Suppressor), it can reduce distortion
in large signal input condition.
2001-02-16
4/31
TA1304F/N
PIN
No.
NAME
FUNCTION
INTERFACE CIRCUIT
17
18
19
Woofer LPF 1
Woofer LPF 2
Woofer LPF 3
LPF for woofer.
Connect a capacitor (0.033 µF)
between terminal 17 and GND.
Connect a capacitor (0.047 µF)
terminal 18 and GND.
Connect a capacitor (0.022 µF)
terminal 19 and GND.
20
V
CC
V
CC
terminal.
Recommended operation voltage is
9 V ± 10%.
―
21
Volume filter
Smoothing filter for volume control.
Connect a capacitor (0.01 µF)
between this terminal and GND.
22
Woofer level filter
Smoothing filter for volume control.
Connect a capacitor (3.3 µF)
between this terminal and GND.
This filter is also for ALS control.
23
SCL
SCL terminal.
2001-02-16
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