IDT92HD81B1X5NLGXYCX8 IDT, Integrated Device Technology Inc, IDT92HD81B1X5NLGXYCX8 Datasheet - Page 31

• Manufacturer Part Number: IDT92HD81B1X5NLGXYCX8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT92HD81B1X5NLGXYCX8

• Lead Free Status / RoHS Status: Compliant

92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
1.
IDT™ CONFIDENTIAL
Override
BEEP
When pin is enabled as Open Drain or CMOS output.
0
1
BTL SD
1.EAPD bit is set to one by default but the EAPD state is 0 after power-on reset because the function group is not in
0
0
0
0
0
0
0
0
1
1
HP SD
D0. The state after a single or double function group reset will be compliant with ECR15b.
1.EAPD bit is set to one by default but the EAPD state is 0 after power-on reset because the function group
Forced to low when in D2
Always follows EAPD bit
0
0
0
0
0
0
0
0
1
1
is not in D0. The state after a single or double function group reset will be compliant with ECR15b.
EAPD Pin value
BTL SD
MODE
or D3
0
0
0
0
1
1
1
1
0
1
HP SD
MODE
0
0
0
0
1
1
1
1
0
1
BTL SD INV
1
NA
NA
HP SD INV
0
0
1
1
0
0
1
1
Table 9. Headphone Amp Enable Configuration
Power state is ignored and EAPD pin follows EAPD bit value only to allow PC_Beep support
Follows description in HD Audio spec. External amplifier is shut down when pin or function
NA
NA
0
0
1
1
0
0
1
1
Table 10. EAPD Low Power Behavior
EAPD Pin
State
Table 8. BTL Amp Status
NA
NA
0
1
0
1
0
1
0
1
EAPD Pin
group power state is D2 or D3 independent of value in EAPD bit.
State
NA
NA
0
1
0
1
0
1
0
1
Amplifier follows pin/function group power state and will enter a
Amplifier follows pin/function group power state and will mute
31
Amplifier follows pin/function group power state and will
Amplifier follows pin/function group power state and will
enter a low power state when disabled
Amplifier is in a low power state
Amplifier is in a low power state
Amplifier is in a low power state
Amplifier is in a low power state
low power state when disabled
in D2 and D3
Description
Amplifier is mute (default
Amplifier is mute (default
Headphone Amp State
mute when disabled
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is active
Amplifier is mute
Amplifier is mute
when disabled
Amp State
1
1
)
)
V 0.987 11/09
92HD81