tb2959hq TOSHIBA Semiconductor CORPORATION, tb2959hq Datasheet - Page 8

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

9.
9.1
9.2
Ripple pin
Voltage
1/2Vcc
1/2Vcc-0.7V 
Mute Mode
Low Voltage Mute
Standby off Mute
turned off before charging C1 and C4 is finished, pop noise occurs because of input offset. Set “mute-off” with
sufficient margin in considering a charge time.
The mute mode in this product is a mute at standby on/off, an internal mute for low voltage. If the mute is
Standby “Hi”
Operation period of Standby mute
Standby Off
Low Voltage Mute is operated inside the IC the Ripple pin voltage becomes about under the about
5.6V.
A mute operation starts automatically inside the IC after standby-low until the Ripple pin voltage
becomes about 1/2 Vcc-0.7V.

Standby off
Figure5 Standby Off Mute
Mute Off
8
Ripple pin voltage
TB2959HQ
2011-11-08
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