ta8252h TOSHIBA Semiconductor CORPORATION, ta8252h Datasheet - Page 4
ta8252h
Manufacturer Part Number
ta8252h
Description
Max Power 37w Btl 4ch Audio Power Ic
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TA8252H.pdf
(14 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TA8252H
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
3. Multing function (pin(24))
I
By means of controlling pin(24) less than 0.5V, it can make the audio muting condition.
The muting time constant is decided by R
The series resistance; R
The muting function have to be controlled by a transistor, FET and µ-COM port which has
I
Terminal (24) must not be pulled up and it shall be controlled by open / low.
MUTE
MUTE
I(100µA)
(Fig.4) Muting function
(OFF)
> 250µA ability.
24
I
MUTE
R
1
Stand-By
V
must be set up less than 5kº, we recommend 0kº.
MUTE
V
A
CC
Small current capacity switch
V
CC
Large current capacity switch
Battery
Battery
Ù Conventional Method Ù
Stand-by switch method
and C
4
and these parts is related the pop noise at power on / off.
(Fig.3)
4
Directly from
microcomputer
Stand-By
V
í100
í20
í40
í60
í80
CC
20
0
0
Relay
V
0.4
(Fig.5) Mute attenuation-V mute (V)
CC
Pin(24) voltage : V
0.8
Battery
From
microcomputer
Battery
R1 = 15k
ATT – V
1.2
mute
1.6
10k
mute
V CC = 13.2 V
Po = 10 W
RL = 4
f = 1 kHz
2
(V)
5k
2.4
2002-10-30
TA8252H
2.8