TB2924AFG データシートの表示（PDF） - Toshiba

部品番号

コンポーネント説明

メーカー

TB2924AFG

Class D, 20 W × 2-channel (BTL) Low-Frequency Power Amplifier IC

Toshiba 

TB2924AFG

5. Reduction of Pop Noise Generated when Turning on and Off the Power Supply

• To reduce pop noise, it is recommended to enable muting by setting pin 17 (mute switch) to logic low

before turning on or off the power supply or standby mode.

When turning on or off the standby mode (When the power supply is not turned on or off)

Mute Pin

Standby Pin

Turn on or off the standby mode after turning on muting.

When the power supply is off

Mute Pin

Standby Pin

Power Supply Pin

Turn off the power supply after turning on muting.

Don’t turn off the standby mode before turning off the power supply.

When the power supply is on

Mute Pin

Standby Pin

Turn on the power supply after turning on muting.

Timing charts may be simplified for explanatory purpose.

6. Board Mounting Consideration

The switching of the TB2924AFG is controlled with a rectangular-wave signal of approximately

200 kHz (typical). It is recommended to place the TB2924AFG far from the tuner portion, etc. that might

be affected.

5

2007-01-26

Share Link: