92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 17

• 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
D3
D3cold
D4
D5
2.2.
Power
State
AFG
Mono Output
De-Asserted
(High)
-
-
-
RESET#
The MONO Output has an independent mute (see the Widget listing for details). The MONO Output
derives its input from the output of the summing node after the mono mux. The following sources are
available for the mono pin:
DAC0 Output: When selected (by using port connection list), both DAC0 outputs are summed
together.
DAC1 Output: When selected (by using port connection list), both DAC1 outputs are summed
together.
Mixer Output: When selected (by using port connection list), both mixer outputs are summed
together.
The stereo inputs are scaled by -6dB and then summed to provide an output that is the average of
the two inputs. The full scale output at mono out is designed to be about 0dBV. It is not possible to
adjust to a +3dBV output level.
Disabled Disabled
Disabled Disabled -
-
-
Enable
GPIO0
-
-
Enable
Input
Table 4. SPDIF OUT 1 Behavior
Disabled -
Enabled
-
-
Output
Enable
17
Disabled -
Enabled
-
-
-
Converte
r Dig En
-
-
-
-
-
-
Strea
m ID
-
-
0
1
-
-
-
Keep
Alive
En
92HD81
Hi-Z (internal pull-down
enabled)
Hi-Z (internal pull-down
enabled)
Hi-Z (internal pull-down
enabled)
Active - Pin drives
SPDIF-format, but data is
zeroes (internal pull-down
NA)
Hi-Z (internal pull-down
enabled)
Hi-Z (port off)
Hi-Z (port off)
Pin Behavior
PC AUDIO
V 0.97 01/09