92HD66B Datasheet, PDF (42/286 Pages) Integrated Device Technology – FOUR CHANNEL HD AUDIO CODECS

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
3.5.2. SPDIF Timing
Parameter
SPDIF_OUT Frequency
SPDIF_OUT unit interval
SPDIF_OUT jitter
SPDIF_OUT rise time
SPDIF_OUT fall time
Definition
Symbol
highest rate of encoded signal
64 times the sample rate
1/(128 times the sample rate)
UI
SPDIF_OUT jitter
T_rise
T_fall
Table 25. SPDIF Timing
Min
Typ
2.8224 3.072
177.15 162.76
Max
12.288
40.69
4.43
15
15
Units
MHz
ns
ns
ns
ns
3.5.3. Digital Microphone Timing
Parameter
DMIC_CLK Frequency
DMIC_CLK Period
DMIC_CLK jitter
DMIC Data setup
DMIC Data hold
Definition
Symbol
Average DMIC_CLK frequency
Period of DMIC_CLK
Tdmic_cyc
DMIC_CLK jitter
Setup for the microphone data at both rising
and falling edges of DMIC_CLK
Tdmic_su
Hold for the microphone data at both rising and
falling edges of DMIC_CLK
Tdmic_h
Table 26. Digital Mic timing
Min
1.176
850.34
5
5
Typ
2.352
425.17
Max
4.704
212.59
5000
Units
MHz
ns
ps
ns
ns
3.5.4. GPIO Characteristics
Parameter
Definition
Symbol
Input High Voltage
input level at or above which a 1 is reliably
recorded
Vih
Input Low Voltage
input level at or below which a 0 is reliably
recorded
Vil
VDD may be DVDD or AVDD
Output High Voltage
iout = 4mA
VDD may be DVDD or AVDD depending on pin
Voh
Output Low Voltage
iout = -4mA
VDD may be DVDD or AVDD depending on pin
Vol
Input rise/fall time
transition time between 10% and 90% of
supply
T_rise/T_fall
Input/Tristate High
Leakage Current
Vin = VDD
VDD may be DVDD or AVDD depending on pin
(does not include pull-up or pull-down resistor if
present)
Input/Tristate Low Leakage
Current
Vin = 0
VDD may be DVDD or AVDD depending on pin
(does not include pull-up or pull-down resistor if
present)
Table 27. GPIO Characteristics
Min
0.6 x
VDD
0.9 x
VDD
Typ
Max
Units
V
0.35 x
VDD
V
V
0.1 x
VDD
V
10
ns
0.5
uA
-50
uA
42
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92HD66B