tb2959hq TOSHIBA Semiconductor CORPORATION, tb2959hq Datasheet - Page 5

• Manufacturer Part Number: tb2959hq
• Description: Maximum Power 47w Btl  4-ch Audio Power Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

6.
Component
Name
Note4: When the unrecommended value is used, please examine it enough by system evaluation.
Note5: Since “AC-GND” pin is a common reference voltage for all input, this product needs to set the ratio of an
C1
C2
C3
C4
C5
C6
C7
R1
Detailed Description
input apacitance (C1) and the AC-GND capacitance (C6) to 1:4.
Recomm
3900 μF
0.22 μF
0.22μF
0.1 μF
ended
47kΩ
Value
10 μF
1 μF
1uF
INx(x:1 to 4)
V
V
AC-GND
CC1,
CC1,
AUX-IN
Ripple
Mute
Mute
Pin
V
V
CC2
CC2
To reduce pop noise
To eliminate DC
To reduce pop noise
To provide sufficient
Common reference
voltage for all input
oscillation margin
To eliminate DC
To reduce ripple
Ripple filter
Purpose
5
High pop noise. Duration until
mute function is turned on/off is
short.
Cut-off frequency is increased in
AUX
Cut-off frequency becomes higher
Lower than Recommended Value
Turn on/off time and turn-on diag.
High pop noise. Duration until
mute function is turned on/off is
short.
Reduces noise and provides sufficient oscillation margin
Pop noise is suppressed when C1: C6 = 1:4. (Note5)
cycle shorter
Power supply ripple filtering
Effect (Note4)
Low pop noise. Duration until mute
function is turned on/off is long.
Cut-off frequency is reduced in
AUX.
Low pop noise. Duration until mute
function is turned on/off is long.
Higher than Recommended Value
Turn on/off time and turn-on diag.
Cut-off frequency becomes lower
cycle longer
TB2959HQ
2011-11-08