Cirrus Logic CS35L00 - Manual (Page 14)

CS35L00
14 DS906PP1
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
POWER-UP & POWER-DOWN CHARACTERISTICS
Note:
15. Start-Up Time (t
start
) refers to the internal start-up time from when SD is released to when the device
is ready to activate the PWM outputs. The total power-up time from SD release to the PWM outputs
becoming active will vary based on the input signal, not exceeding the Start-Up Time + Zero Crossing
Power-Up Timeout (t
start
+ t
timeout
). For more information refer to Section 5.4 .
Parameters Symbol Min Max Units
Input Leakage Current I
in
- ±10 μA
Input Capacitance - 10 pF
SD Pulse Width Requirement 1 - ms
Logic I/Os (Applicable to GAIN_SEL, MODE, and SD)
High-Level Input Voltage V
IH
0.7•VBATT - V
Low-Level Input Voltage V
IL
- 0.3•VBATT V
Parameters Symbol Test Conditions Min Typ Max Units
Start-Up Time (Note 15) t
start
After “Low” to “High” SD Pin transition edge - 18 - ms
Zero Crossing Power-Up Timeout t
timeout
No audio input applied - 25 - ms
Power-Down Time t
off
After “High” to “Low” SD Pin transition edge - 1 - ms