92hd88b4x5ndg Integrated Device Technology, 92hd88b4x5ndg Datasheet - Page 15

• Manufacturer Part Number: 92hd88b4x5ndg
• Description: Single Chip Pc Audio System Codec+mono Speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD88
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.1.4.
CONFIDENTIAL
When the HD Audio bus is in a low power state (reset asserted and clock stopped) the CODEC will
generate a Power State Change Request when a change in port connectivity is sensed and then
generate an unsolicited response after the HD Audio link has been brought out of a low power state
and the device has been enumerated. Per ECR015-B, this will take less than 10mS.
The following table summarizes the proper resistor tolerances for different analog supply voltages.
See reference design for more information on Jack Detect implementation.
SPDIF Output
Both SPDIF Outputs can operate at 44.1kHz, 48kHz, 88.2kHz, 96kHz and 192KHz as defined in the
Intel High Definition Audio Specification with resolutions up to 24 bits. This insures compatibility with
all consumer audio gear and allows for convenient integration into home theater systems and media
center PCs.
Per the HDA015-B ECR, the SPDIF outputs support the ability to provide clocking information even
when no stream is selected for the converter, or when in a low power state. Also, as stated in the
ECR, the SPDIF output ports support port presence detect.
SPDIF Outputs are outlined in tables below.
Voltage (+/- 5%)
AVdd Nominal
Resistor
4.75V
39.2K
20.0K
10.0K
2.49K
5.11K
Resistor Tolerance
Pull-up to AVDD
PORT A (HP0)
PORT B (HP1)
SPDIFOUT0
SENSE_A
PORT C
Pull-Up
1%
15
Resistor Tolerance
Pull-up to AVDD
SPDIFOUT1
SENSE_A/B
SENSE_B
(DMIC1)
PORT F
DMIC0
1%
NA
92HD88
PC AUDIO
V 0.94 07/11