92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 30

• Manufacturer Part Number: 92hd98
• Description: Datasheet
• Manufacturer: Integrated Device Technology

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
2.15. Digital PC-Beep
NO
NO
This block uses an 8-bit divider value to generate the PC beep from the 48kHz HD Audio Sync
pulse. The digital PC_Beep block generates the beep tone on all Pin Complexes that are currently
configured as outputs. The HD Audio spec states that the beep tone frequency = (48kHz HD Audio
Activity on Pin?
Link Reset
Active?
Figure 9. Analog PC Beep Flow chart
64mS
POR
IDLE
Wait
YES
YES
30
Amplifiers / Enable
Activity on Pin?
Path / Turn off
Inactivity over
Disable Beep
Beep Path
threshold?
Amplifiers
Turn on
YES
NO
NO
YES
NO
Activity on Pin?
PC_Beep
Enabled?
Analog
YES
NO
V 0.91 10/10
NO
92HD98