IDT92HD90B0X5NLGXYAX8 IDT, Integrated Device Technology Inc, IDT92HD90B0X5NLGXYAX8 Datasheet - Page 32

• Manufacturer Part Number: IDT92HD90B0X5NLGXYAX8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT92HD90B0X5NLGXYAX8

• Lead Free Status / RoHS Status: Compliant

92HD90
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
2.17. 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
32
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
92HD90