ak4145 AKM Semiconductor, Inc., ak4145 Datasheet - Page 6

• Manufacturer Part Number: ak4145
• Description: Digital Stereo Btsc Encoder
• Manufacturer: AKM Semiconductor, Inc.

(Ta=-20∼ 85°C; AVDD=TVDD=1.7~3.6V, DVDD=1.7~1.9V)
(Ta=-20∼ 85°C; AVDD=2.7 ~ 3.6V, TVDD=1.7~3.6V, DVDD=1. 7~1.9V)
Note 6. BICK rising edge must not occur at the same time as LRCK edge.
Note 7. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
Note 8. The AK4145 can be reset by bringing the PDN pin = “L”.
Note 9. I
Rev. 0.3
Parameter
High-Level Input Voltage
Low-Level Input Voltage
Low-Level Output Voltage (SDA pin: Iout= 3mA)
Input Leakage Current
Parameter
Master Clock Frequency
LRCK Frequency
Audio Interface Timing
Control Interface Timing (I
Reset Timing
Duty Cycle
Duty Cycle
BICK Period
BICK Pulse Width Low
BICK rising to LRCK Edge
LRCK Edge to BICK rising
SDTI Hold Time
SDTI Setup Time
SCL Clock Frequency
Bus Free Time Between Transmissions
Start Condition Hold Time
Clock Low Time
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling
SDA Setup Time from SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
Pulse Width of Spike Noise Suppressed by Input Filter
Capacitive load on bus
PDN Pulse Width
TVDD < 2.7V
TVDD ≥ 2.7V
TVDD < 2.7V
TVDD ≥ 2.7V
(prior to first clock pulse)
2
C is a registered trademark of Philips Semiconductors.
Pulse Width High
2
C Bus)
SWITCHING CHARACTERISTICS
DC CHARACTERISTICS
(Note
(Note
(Note
(Note
8)
6)
6)
7)
Symbol
VOL
- 6 -
VIH
VIH
VIL
VIL
Iin
Symbol
tHD:DAT
tBCKL
tBCKH
tHD:STA
tSU:DAT
tSU:STA
tSU:STO
dCLK
fCLK
tBCK
tSDH
tBLR
tLRB
tSDS
Duty
tHIGH
tLOW
tPD
fSCL
tBUF
80%TVDD
70%TVDD
fs
tSP
Cb
tR
tF
min
-
-
-
-
1/128fs
8.192
min
150
1.3
0.6
1.3
0.6
0.6
0.1
0.6
40
32
45
30
30
20
20
20
20
0
0
-
-
-
-
typ
-
-
-
-
-
-
typ
20%TVDD
30%TVDD
Max
± 10
36.8640
0.4
-
-
max
400
400
0.3
0.3
60
48
55
50
-
-
-
-
-
-
-
-
[AK4145]
2007/11
Units
Units
MHz
kHz
kHz
μA
pF
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
%
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
V