IDT92HD90B0X5NLGXYAX8 IDT, Integrated Device Technology Inc, IDT92HD90B0X5NLGXYAX8 Datasheet - Page 25
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IDT92HD90B0X5NLGXYAX8
Manufacturer Part Number
IDT92HD90B0X5NLGXYAX8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.IDT92HD90B0X5NLGXYAX8.pdf
(298 pages)
Specifications of IDT92HD90B0X5NLGXYAX8
Lead Free Status / RoHS Status
Compliant
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92HD90
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
SD
SD INV
SD MODE
D3cold
Power
D0-D3
enabled
Analog
State
AFG
HP SD
BEEP
D0
D1
D2
D2
D3
D3
D4
D5
(EAPD Pin or power setting)
0
0
1
1
0
1
1.
1.
1.
(power down or mute)
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 D0. The
state after a single or double function group reset will be compliant with HDA015-B.
When pin is enabled as Open Drain or CMOS output.
Port E Headphone Amp Enable Configuration Bits
SD is ignored in Aux mode since the widget power state is “D3” or “D3cold”.
Forced to low when in D2
unless port is enabled as
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
De-Asserted (High)
Forced low in D2 or D3
Asserted (Low)
HP SD
MODE
EAPD Pin value
1
1
0
1
RESET#
Table 13. Port E Headphone Amp Enable Configuration support by part and mode
output
or D3
HP SD INV
NA
NA
1
1
1
PC_BEEP
Table 12. Headphone Amp Enable Configuration
Disabled
Disabled
Enabled
Enabled
Analog
Follows description in HD Audio spec. External amplifier is shut down when pin or function
Table 14. EAPD Analog PC_Beep behavior
Power state is ignored if port is enabled as output and port EAPD=1 to allow PC_Beep
EAPD Pin
-
-
-
-
-
-
State
NA
NA
0
1
Table 15. EAPD Behavior
Port Power
group power state is D2 or D3 independent of value in EAPD bit.
D0-D1
D0-D2
D0-D2
D0-D3
D0-D3
State
Amplifier follows pin/function group power state and will mute when disabled
Amplifier follows pin/function group power state and will enter a low power
-
-
-
-
-
25
Active - Pin reflects EAPD bit unless held low by external source.
Active - Pin reflects EAPD bit unless held low by external source.
Active - EAPD Pin high if any port EAPD bit =1 and that port also
Active - EAPD Pin high if any port EAPD bit=1 and that port also
Active low immediately after power on, otherwise the previous
state is retained across FG and link reset events
support in D2 and D3
Amplifier is in a low power state
Description
Pin forced low to disable external amp
Pin forced low to disable external amp
Pin forced low to disable external amp
Pin forced low to disable external amp
Headphone Amp State
Normal Mode
state when disabled
Amplifier is active
supported
enabled as output.
enabled as output.
Pin Behavior
Pin Hi-Z (off)
supported
supported
Not supported
Aux Mode
V 0.91 10/10
1
92HD90
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