TA8252HQ TOSHIBA Semiconductor CORPORATION, TA8252HQ Datasheet - Page 5

• Manufacturer Part Number: TA8252HQ
• Description: Max Power 37w Btl ? 4ch Audio Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

4.AUX. input (pin(16))
5. Diagnosis output (pin(25))
The pin(16) is for input terminal of AUX. amplifier.
The total gain is 0dB by using of AUX. amplifier.
Therfore, the µ−COM can directly drive the AUX. amplifier.
Beep sound or voice synthesizer signal can be input to pin(16) directly.
The diagnosis output terminal of pin(25) has open collector output structure on clip as shown in Fig.7.
In unusual case that output terminal of power amp. is condition of output to V
over voltage input mode, it is possible to protect all the system of apparatus as well as power IC protection.
In case of being unused this function, use this IC as open−connection on pin(25).
Pin(25): Open collector output (active low)
Clip detector
Diagnosis
output
output
(Fig.7)
25
GND
Outpout short or over voltage input
5V
5V
V3
t
(Application)
5
25
5V
µ-COM
Memory
µ-COM
(Count and record)
LED/LCD
Regulator→OFF
CC
Alarm
AUX-IN
(Fig.8)
or output to GND short and
IN
(Fig.6) AUX input
16
(Relay→OFF)
(Flashing)
(Announcement
from a speaker.)
AUX AMP
+
−
−20dB
TA8252HQ
20dB AMP.
2006-04-28
+
−
OUT(+)
OUT(−)