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TS2012EI Datasheet(PDF) 24 Page - STMicroelectronics

Part # TS2012EI
Description  Filter-free Flip Chip stereo 2 x 2.5 W class D audio power amplifier
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS2012EI Datasheet(HTML) 24 Page - STMicroelectronics

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Application information
TS2012EI
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DocID026152 Rev 1
Figure 37. Wake-up phase
When the standby command is set, the time required to set the output stage to high
impedance and to put the internal circuitry in shutdown mode is called the standby time.
This time is used to decrease the gain from its nominal value set by the digital pins G0 and
G1 to mute and avoid any pop noise during shutdown. The gain decreases smoothly until
the outputs are muted (Figure 38).
Figure 38. Shutdown phase
Preset gain
Gain increasing
t
WU-A
t
WU
t
WU-B
STBY
Mute
Time
Time
Gain
STBY
Level
STBY
LO
HI
G = 6dB
G = 12dB
G = 18dB
G = 24dB
Mute
Preset gain
t
STBY
STBY
Time
Time
Gain
STBY
Level
Gain decreasing
LO
HI
G = 6dB
G = 12dB
G = 18dB
G = 24dB
Mute
STBY
Mute



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