92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 36

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Output sent to BTL amp by default but
changed to HP if presence detect
Mixer and output ports forced on.
MixerOutVol
mute
-46.5 to 0 dB
In 1.5 dB steps
EAPD
(pin)
0
1
1
1
1
shows HP.
Vol
Support
Enable
2.22.2.2. When Port E Aux Audio Out presence detect = 1
•
•
•
•
•
•
•
Aux
NA
0
1
1
1
Σ
Presence detect for Port E = 1 (something plugged in)
Port F Aux Audio input is routed to Ports A, B
Port D is disabled
If either Port A or Port B is in use (port presence detect = 1), that port will be enabled and output
the audio entering Port F.
The power supply for Port A and B will be active if either A or B is in use but if only one of the two
ports is in use, the other may be turned off to save power.
If neither Port A nor Port B is in use (port presence detect = 0), ports A and B will be inactive and
the audio on Port F will play through the dock using resources outside of the CODEC.
EAPD is used to indicate if AUX Audio Mode is in use.
1
Port E
detect
NA
NA
0
0
0
Port B
detect
mute
mute
mute
mute
mute
mute
-34.5 to +12 dB
In 1.5 dB steps
NA
NA
0
0
1
vol
vol
vol
vol
vol
vol
MixerOutVol
MixerOutVol
MixerOutVol
Port A
detect
NA
NA
0
1
0
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
DAC0
DAC1
DAC2
Digital PC Beep
Digital PC Beep
Digital PC Beep
Port A
DAC0
DAC1
Port C
Port E
Port F
DMIC detect
Port C, D, F,
36
(Disabled)
(Disabled)
(Disabled)
(Disabled)
(Disabled)
Analog Beep
Analog Beep
Analog Beep
NA
NA
NA
NA
NA
Σ
Σ
Σ
+0/+10/+20/+30 dB
(F to mix to D)
controlled
behavior
disabled
disabled
disabled
BTL
enabled
Port D
Widget
Class-AB
HP
HP
LO
Boost
92HD81
(Black River / Hendrix)
PORT A
Pin Complex
Pins 28/29
PORT B
Pin Complex
Pins 31/32
PORT D
Pin Complex
Pins 39/41/43/44
PORT F
Pin Complex
Pins 17/18
(F to mix to B)
Mic Bias
controlled
behavior
disabled
disabled
disabled
enabled
Widget
Port B
HP Jack
HP Jack
Internal
Speakers
(Disabled if port A,
B, or E in use)
Aux Audio In
(F to mix to A)
controlled
PC AUDIO
behavior
disabled
disabled
disabled
enabled
Port A
Widget
V 0.97 01/09