92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 46

• Manufacturer Part Number: 92hd98
• Description: Datasheet
• Manufacturer: Integrated Device Technology

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
SPDIF_OUT Frequency
SPDIF_OUT unit interval
SPDIF_OUT jitter
SPDIF_OUT rise time
SPDIF_OUT fall time
DMIC_CLK Frequency
DMIC_CLK Period
DMIC_CLK jitter
DMIC Data setup
DMIC Data hold
3.5.2.
3.5.3.
Parameter
Parameter
SPDIF Timing
Digital Microphone Timing
Setup for the microphone data at
Hold for the microphone data at
Average DMIC_CLK frequency
both rising and falling edges of
both rising and falling edges of
highest rate of encoded signal
1/(128 times the sample rate)
64 times the sample rate
Period of DMIC_CLK
Figure 15. HD Audio Bus Timing
SPDIF_OUT jitter
DMIC_CLK jitter
DMIC_CLK
DMIC_CLK
Definition
Definition
Table 24. Digital Mic timing
Table 23. SPDIF Timing
46
Tdmic_cyc
Tdmic_su
Tdmic_h
Symbol
Symbol
T_rise
T_fall
UI
177.15
850.34
2.8224
1.176
Min
Min
5
5
162.76
425.17
3.072
2.352
Typ
Typ
12.288
212.59
40.69
4.704
5000
Max
4.43
Max
15
15
V 0.91 10/10
Units
Units
MHz
MHz
92HD98
ns
ns
ns
ns
ns
ps
ns
ns