TA8221AHQ Toshiba, TA8221AHQ Datasheet - Page 6

• Manufacturer Part Number: TA8221AHQ
• Manufacturer: Toshiba

Specifications of TA8221AHQ

• No. Of Channels: 2
• Package: HZIP 17-P-2.00
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 26W x 2
• Rl=4 Ohm: 19W x 2
• Rl=8 Ohm: -
• Features/built-in Functions: 2 BTL channels, standby switch
• Operating Voltage (v): 9 to 18

7. External parts list and description
(Precaution 2)
If the falling time constant of the V
In this case, it is possible to prevent the pop noise from beoming worse by reducing the capacity of "ripple rapid
discharging circuit at the time of V
However, it shall be kept in mind that the time for turning the power on becomes longer as the result of step
(b).
Sym −
bol
C1
C2
C3
C4
C5
C6
(a) Short pin(1) (mute terminal) and pin(8) (ripple terminal).
(b) Increase the capacity of ripple capacitor of pin(8).
Recom −
mended
1000µF
1000
0.12µF
220µF
Value
4.7µF
47µF
P
F
DC blocking
Feedback
condenser
Ripple
reduction
Oscillation
prevention
Ripple filter
Oscillation
prevention
Feature
CC
CC
off" accordign to the following steps :
line is large (the fall is gentle), the pop noise may become worse.
Related to pop noise at V
Determination of low cut − off frequency.
Time constant is small
at V
Made liable to
oscillate.
For filtering power supply hum and ripple.
Large at using AC rectified power supply.
Small at using DC power supply.
Oscillation allowance improved.
Noise reduction
Related to pop noise at V
C2 =
Recommended Value
CC
→on or off.
Smaller Than
2
π
6
・
L f
1
・
f R
Influence
CC
CC
→on.
→on.
Time constant is large
at V
Oscillation allowance
Recommended Value
CC
→on or off.
Larger Than
TA8221AHQ / ALQ
Refer to item 3.
Refer to item 3.
2004-09-28
Related to gain.
Refer to item 4.
Remarks