92HD87 Datasheet, PDF (30/204 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
MixerOutVol
mute
Vol
-46.5 to 0 dB
In 1.5 dB steps

Mixer and output ports forced on.
Output sent to BTL amp by default but
changed to HP if presence detect
shows HP.
Digital PC Beep
MixerOutVol
DAC0
DAC1
DAC2
Digital PC Beep
MixerOutVol
DAC0
DAC1
DAC2
Digital PC Beep
MixerOutVol
DAC0
DAC1
DAC2
Analog Beep

Analog Beep

Analog Beep

HP
HP
Class-AB
BTL
mute
vol
mute
vol
mute
vol
mute
vol
mute
vol
mute
vol
-34.5 to +12 dB
In 1.5 dB steps
Port A
DAC0
DAC1
Port C
Port E
Port F
(Disabled)
(Disabled)
(Disabled)
(Disabled)
(Disabled)
LO
Boost
+0/+10/+20/+30 dB
PORT A
Pin Complex
Pins 22/23
HP Jack
PORT B
Pin Complex
Pins 25/26
HP Jack
PORT D
Pin Complex
Pins 34/35/37/38
Internal
Speakers
(Disabled if port A,
B, or E in use)
PORT F
Pin Complex
Pins 13/14
Aux Audio In
EAPD
(pin)
0
1
1
1
Aux
Support
Enable¹
NA
Port E
detect
NA
0
NA
1
0
1
0
Figure 6. Aux Mode Block Diagram
Port B Port A
detect detect
NA
NA
NA
NA
0
0
0
1
Port C, D, F,
DMIC detect
NA
NA
NA
NA
Port D
behavior
disabled
Widget
controlled
enabled
(F to mix to D)
disabled
1
1
0
1
0
NA
disabled
1
1
0
1
1
NA
1
1
1
0
0
NA
1
1
1
0
1
NA
disabled
disabled
disabled
1
1
1
1
0
NA
disabled
1
1
1
1
1
NA
disabled
Table 10. Aux Mode Table
1.default value for Aux Audio Enable is determined by bond option.
Port B
behavior
disabled
Widget
controlled
disabled
disabled
enabled
(F to mix to B)
enabled
(F to mix to B)
disabled
disabled
enabled
(F to mix to B)
enabled
(F to mix to B)
Port A
behavior
disabled
Widget
controlled
disabled
enabled
(F to mix to A)
disabled
enabled
(F to mix to A)
disabled
enabled
(F to mix to A)
disabled
enabled
(F to mix to A)
IDT CONFIDENTIAL
30
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 0.995 01/11
92HD87