92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 46

• 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
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
3.3.2.
3.3.3.
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
SPDIF_OUT jitter
DMIC_CLK jitter
DMIC_CLK
DMIC_CLK
Definition
Definition
Table 17. Digital Mic timing
Table 16. SPDIF Timing
46
Tdmic_cyc
Tdmic_su
Tdmic_h
Symbol
Symbol
T_rise
T_fall
UI
177.15
850.34
2.8224
92HD81
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
PC AUDIO
V 0.97 01/09
Units
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ps