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STA335BWS Fiches technique(PDF) 17 Page - STMicroelectronics

No de pièce STA335BWS
Description  2.1-channel high-efficiency digital audio system
PDF  68 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA335BWS Fiches technique(HTML) 17 Page - STMicroelectronics

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STA335BWS
Electrical specifications
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3.5
Power-on sequence
Table 7.
Power-on sequence
Where:
TR = minimum time between XTI master clock stable and Reset removal: 1 ms
TC = minimum time between Reset removal and I2C program, sequence start: 1msec
Note:
Clock stable means: fmax - fmin < 1 MHz
Note:
No specific VCC and VDD_Dig turn
−on sequence is required
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
Don’t care
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
Don’t care
Don’t care
CMD0
CMD1
CMD2
VCC
VDD_Dig
XTI
Reset
I2C
PWDN
TR
TC
Don’t care
Table 8.
Functional pin status
Pin name
Pin #
Logic value
IC status
PWRDN
23
0
Low absorption
PWRDN
23
1
Normal operation
TWARN
20
0
From external power stage is indicated a temperature
warning
TWARN
20
1
Normal operation
EAPD
19
0
Low absorption for power stage
All internal regulators are switched off
EAPD
19
1
Normal operation



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