TA8205AHQ Toshiba, TA8205AHQ Datasheet - Page 5

• Manufacturer Part Number: TA8205AHQ
• Manufacturer: Toshiba

Specifications of TA8205AHQ

• No. Of Channels: 2
• Package: HZIP 17-P-2.00
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: -
• Rl=4 Ohm: 15W x 2
• Rl=8 Ohm: -
• Features/built-in Functions: 2 BTL channels, low heat resistance, various protection circuits, standby switch
• Operating Voltage (v): 9 to 18

5. Muting function
6. External parts list and description
Through setting pin(1) (mute terminal) at about 1V or less, muting becomes possible.
The interval circuit of IC is shown in Fig.4.
When pin(1) is set to low, Q1 and Q2 are turned to on, the charge of the ripple condenser is discharged and the
bias is cut. The mute amount of 60dB or over can be obtained.
Since this mute function rapidly discharges the charge of the ripple filter capacitor of pin(8), the pop noise is
generated by the DC fluctuation of the bias section.
Therefore, this muting function is not appropriate to the audio muting but it is effective in muting at V
Symbol
C
C
C
C
C
1
2
3
4
5
Recom −
mended
1000µF
0.12µF
220µF
Value
4.7µF
47µF
Feedback
condenser
Ripple
reduction
Oscillation
prevention
Repple
filter
DC blocking
Feature
Related to pop noise at V
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.
C
Recommended Value
CC
2
=
→on or off.
Smaller Than
2
π
5
・
L f
1
・
f R
Influence
CC
CC
→on.
→on.
Time constant is large
at V
Oscillation allowance
improved.
Recommended Value
CC
→on or off.
Larger Than
TA8205AHQ/ALQ
Refer to item 3.
2004-09-28
Related to gain.
Refer to item 4.
Remarks
CC
→on.