AK4589_1 Datasheet, PDF (22/76 Pages) Asahi Kasei Microsystems – 2/8-Channel Audio CODEC with DIR

ASAHI KASEI
[AK4589]
SWITCHING CHARACTERISTICS (ADC/DAC part and DIR/DIT part)
(Ta=25°C; AVDD, DVDD, PVDD=4.75∼5.25V; TVDD=2.7∼5.25V; C_L=20pF)
Parameter
Symbol
min
typ
max
Control Interface Timing (4-wire serial mode)
CCLK Period
CCLK Pulse Width Low
tCCK
200
tCCKL
80
Pulse Width High
CDTI Setup Time
tCCKH
80
tCDS
50
CDTI Hold Time
CSN “H” Time
tCDH
50
tCSW
150
CSN “↓” to CCLK “↑”
CCLK “↑” to CSN “↑”
CDTO Delay
CSN “↑” to CDTO Hi-Z
Control Interface Timing (I²C Bus mode)
tCSS
50
tCSH
50
tDCD
45
tCCZ
70
SCL Clock Frequency
fSCL
-
100
Bus Free Time Between Transmissions
tBUF
4.7
-
Start Condition Hold Time (prior to first clock pulse)
tHD:STA 4.0
-
Clock Low Time
tLOW
4.7
-
Clock High Time
tHIGH
4.0
-
Setup Time for Repeated Start Condition
tSU:STA
4.7
-
SDA Hold Time from SCL Falling
(Note 23)
tHD:DAT
0
-
SDA Setup Time from SCL Rising
tSU:DAT 0.25
-
Rise Time of Both SDA and SCL Lines
tR
-
1.0
Fall Time of Both SDA and SCL Lines
tF
-
0.3
Setup Time for Stop Condition
tSU:STO
4.0
-
Pulse Width of Spike Noise Suppressed by Input Filter
tSP
0
50
Capacitive load on bus
Cb
-
400
Notes:
23. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
24. I²C is a registered trademark of Philips Semiconductors.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
kHz
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
ns
pF
Purchase of Asahi Kasei Microsystems Co., Ltd I²C components conveys a license under the Philips
I²C patent to use the components in the I²C system, provided the system conform to the I²C
specifications defined by Philips.
MS0339-E-00
- 22 -
2004/09