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STA333BW Datasheet(PDF) 15 Page - STMicroelectronics

Part # STA333BW
Description  2.1-channel high-efficiency digital audio system
PDF  64 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333BW Datasheet(HTML) 15 Page - STMicroelectronics

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STA333BW
Electrical specifications
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3.5
Power-on sequence
Figure 3.
Power-on sequence
Referring to Figure 3 above:
TR = mimimum time between XTI master clock stable and reset removal: 1 ms,
TC = minimum time between reset removal and I2C program sequence start: 1 ms.
Note:
Clock stable means: fmax - fmin < 1 MHz.
Note:
VCC > VDD_DIG must be guaranteed at all times.
3.6
Testing
3.6.1
Functional pin status
Don’t care
Don’t care
CMD0
CMD1
CMD2
VCC
VDD_DIG
XTI
Reset
I2C
PWDN
TR
TC
Don’t care
Don’t care
CMD0
CMD1
CMD2
VCC
VDD_DIG
XTI
Reset
I2C
PWDN
TR
TC
Table 7.
Functional pin status
Pin name
Number
Logic value
IC status
PWRDN
23
0
Low-power mode
PWRDN
23
1
Normal operation
TWARN
20
0
Temperature warning from external power stage
TWARN
20
1
Normal operation
EAPD
19
0
Low-power operation for power stage. All internal regulators
are switched off
EAPD
19
1
Normal operation



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