92HD66B IDT [Integrated Device Technology], 92HD66B Datasheet - Page 13

• Manufacturer Part Number: 92HD66B
• Description: FOUR CHANNEL HD AUDIO CODECS
• Manufacturer: IDT [Integrated Device Technology]

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
2.4.
SPDIF Output
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 HDA015-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.
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.
Note: Peak to peak jitter is currently limited to less than 4.5nS (half of the internal master clock cycle)
which does not meet the IEC-60958-3 0.05UI requirement at 192KHz.
The two SPDIF output converters can not be aligned in phase with the DACs. Even when attached
to the same stream, the two SPDIF output converters may be misaligned with respect to their frame
boundaries.
Voltage (+/- 5%)
AVdd Nominal
4.75V or 5.0V
Resistor
39.2K
20.0K
10.0K
5.11K
2.49K
Resistor
Table 3. Resistor Tolerance
Table 4. 48 pin Jack Detect
Table 5. 40 pin Jack Detect
39.2K
20.0K
10.0K
2.49K
5.11K
Pull-up to AVDD (X3)
Pull-up to Avreg (X5)
Resistor Tolerance
SENSE_A
PORT A
PORT B
PORT C
PORT F
Pull-Up
1%
13
Pull-up to Avreg (X5)
Pull-up to AVDD (X3)
SENSE_A
PORT A
PORT B
PORT C
PORT F
Pull-up to AVDD (X3)
Pull-up to Avreg (X5)
Resistor Tolerance
SPDIF0/DMIC1
SPDIF1/DMIC1
SENSE_B
SENSE_A/B
PORT E
Mono
1%
V 1.0 2/12
92HD66B