92hd90 Integrated Device Technology, 92hd90 Datasheet - Page 17

• Manufacturer Part Number: 92hd90
• Description: Single Chip Pc Audio System Codec+speaker Amplifier+capless Hp+ldo+i2s
• Manufacturer: Integrated Device Technology

92HD90
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
D0
D1-D2
D3
D3cold
D4
D5
Power
State
AFG
2.2.
De-Asserted
(High)
De-Asserted
(High)
De-Asserted
(High)
-
-
-
Mono Output
RESET#
The Mono Out port source selection, power state, and mute characteristics are all independently
controlled by the mono output port controls. EQ does not apply to this path. An internal 2nd order
band-pass filter is provided to restrict the output frequencies when using mono out to drive an exter-
nal amplified sub-woofer.
The following sources are available for the Mono Out pin:
•
•
•
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.
DAC0 Output: When selected (by using the port connection list), the DAC0 left and right outputs
are summed together.
DAC1 Output: When selected (by using the port connection list), the DAC1 left and right outputs
are summed together.
Mixer Output: When selected (by using the port connection list), the mixer left and right outputs
are summed together.
Disabled
Disabled Disabled
Disabled Disabled
Disabled Disabled -
-
-
Enable
GPIO0
Disabled Disabled -
-
-
-
Enable
Input
Table 5. SPDIF OUT 1 Behavior
Enabled
Disabled -
Enabled
Disabled -
Enabled
-
-
Output
Enable
Disabled
Enabled
-
-
-
Disabled
Enabled
Disabled
Enabled
Converter
17
Dig En
-
-
-
-
-
-
-
-
-
-
0
1-15
-
-
-
Stream
ID
-
-
-
-
-
-
0
1
-
-
0
1
-
-
-
Keep
Alive
En
Hi-Z (internal pull-down enabled)
Active - Pin drives 0 (internal
pull-down NA)
Active - Pin drives SPDIF-format, but
data is zeroes (internal pull-down NA)
Active - Pin drives SPDIFOut1 data
(internal pull-down NA)
Hi-Z (internal pull-down enabled)
Active - Pin drives 0 (internal
pull-down NA)
Active - Pin drives 0 (internal
pull-down NA)
Active - Pin drives SPDIF-format, but
data is zeroes (internal pull-down NA)
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
V 0.91 10/10
92HD90