AK5374 Datasheet, PDF (9/51 Pages) Asahi Kasei Microsystems – 24-bit Stereo ADC with USB Interface

[AK5374]
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=3.3V; CL=50pF)
Parameter
Symbol min
typ
Master Clock Frequency
Crystal Resonator
CKM pin = “L”
fXTAL1
-
16
CKM pin = “H”
fXTAL2
-
24
USB Interface
DP, DN Single Ended Receiver Threshold
(High-Level) VseH
2.0
-
(Low-Level) VseL
-
-
Time Width for USB Reset Signal Recognition
(DP<VseL & DN< VseL to USB Reset mode) Trst_rec 2.7
-
Device Ready Time from USB Reset
(Ready for transaction after reset) Tdrr
-
-
Time Width for Suspend Recognition
(Idle state DP > VseL & DN < VseL to Suspend mode) Tsus_rec 3.0
-
Resume Time from Suspend
(Note 14)
(First flip of DP/DN from Idle sate to Device Ready) Tresm
-
-
USB Transmitter
Data Rate
DR
11.97
12
Output Impedance (Hi)
(Note 15)
(DP, DN pins = “H”, Iout = -10mA)
Roh
-
36
Output Impedance (Lo)
(Note 15)
(DP, DN pins = “L”, Iout = 10mA)
Rol
-
36
“H” level Output Voltage
(Iout = -200µA)
Vohd
2.8
-
“L” level Output Voltage
(Iout = 2.2mA)
Vold
-
-
Tri-state Leakage Current (0 < DP, DN < 3.3V)
Iolk
-10
-
Rise/Fall Time
Trf/Tff
4
12
Rise/Fall Time Matching
Trfm
-
100
Crossover Point
Vcrs
-
1.65
USB Receiver
Common Mode Range
CMR
0.8
-
Differential Input Sensitivity
DIS
200
-
Schmitt High Level Voltage
Vihs
2.0
-
Schmitt Low Level Voltage
Vils
-
-
Note 14. VREF, X’tal oscillator, and PLL get stable and bus transaction with normal rate is ready.
Note 15. Including an external 18Ω (±1%) resistor in series.
max
-
-
-
0.8
-
10
-
30
12.03
-
-
-
0.3
10
20
-
-
2.5
-
-
0.8
Units
MHz
MHz
V
V
μs
ms
ms
ms
MHz
Ω
Ω
V
V
μA
ns
%
V
V
mV
V
V
Parameter
Symbol
min
SPI (EEP-ROM) Control Interface Timing
SK Frequency
SK Duty Cycle
fSK
-
dSK
-
EPAI Delay
tCD
-
CSN Edge to SK “↑”
tCSS
300
SK “↓” to CSN Edge
tCSH
300
CSN “H” Time
tCSW
300
EPAI Setup Time
tCDS
100
EPAI Hold Time
tCDH
100
One Shot Mute Timing
One Shot Mute Input Width
Wosm
10
Reset Timing
Reset Input Width (Note 16)
Wrst
1.0
Note 16. The AK5374 can be reset by the RSTN pin = “L”.
typ
max Units
1.5
-
MHz
50
-
%
-
100
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
ns
-
-
μs
-
-
μs
MS1197-E-00
-9-
2010/05