sta333bwqs13tr STMicroelectronics, sta333bwqs13tr Datasheet - Page 18

• Manufacturer Part Number: sta333bwqs13tr
• Description: 2.1-channel High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

Electrical specifications
3.5
Note:
Note:
3.6
3.6.1
18/71
Power-on sequence
Figure 3.
Referring to
TR = mimimum time between XTI master clock stable and reset removal: 1 ms,
TC = minimum time between reset removal and I
Clock stable means: f
VCC > VDD_DIG must be guaranteed at all times.
Testing
Functional pin status
Table 8.
Pin name
PWRDN
PWRDN
TWARN
TWARN
EAPD
EAPD
VCC
VCC
VDD_DIG
VDD_DIG
XTI
XTI
Reset
Reset
I
I
PWDN
PWDN
2
2
C
C
Figure 3
Power-on sequence
Functional pin status
Number
23
23
20
20
19
19
above:
max
Don’t care
Don’t care
Logic value
- f
min
0
1
0
1
0
1
< 1 MHz.
Low-power mode
Normal operation
Temperature warning from external power stage
Normal operation
Low-power operation for power stage. All internal regulators
are switched off
Normal operation
Don’t care
Don’t care
TR
TR
2
C program sequence start: 1 ms.
TC
TC
IC status
CMD0
CMD0
CMD1
CMD1
STA333BWQS
CMD2
CMD2