NJW1148 New Japan Radio, NJW1148 Datasheet - Page 5

• Manufacturer Part Number: NJW1148
• Description: Audio Processor
• Manufacturer: New Japan Radio

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SDA
SCL
t
f
t
HD:STA
I I I I I
I
2
Low Level Input Voltage
High Level Input Voltage
Hysteresis of Schmitt trigger inputs
LOW level output voltage (3mA at SDA pin)
Output fall time from V
a bus capacitance from 10pF to 400pF
Pulse width of spikes which must be suppressed by the input filter
Input current each I/O pin with an input voltage between 0.1V
and 0.9V
Capacitance for each I/O pin
SCL clock frequency
Hold time (repeated) START condition.
LOW period of the SCL clock
HIGH period of the SCL clock
Set-up time for a repeated START condition
Data hold time
Data set-up time
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Set-up time for STOP condition
Bus free time between a STOP and START condition
Capacitive load for each bus line
Noise margin at the LOW level
Noise margin at the HIGH level
2
C BUS Load Conditions: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
C BUS CHARACTERISTICS (SDA, SCL)
S
DDmax
t
t
LOW
r
IHmin
t
to V
PARAMETER
HD:DAT
ILmax
t
SU:DAT
with
t
HIGH
t
f
t
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SU:STA
Sr
DD
SYMBOL
t
t
t
HD:STA
t
t
t
SU:STO
HD:STA
SU:STA
HD:DAT
SU:DAT
t
t
V
V
f
t
V
V
V
HIGH
V
t
LOW
BUF
C
C
SCL
t
SP
t
I
t
hys
of
OL
nH
nL
IL
IH
i
r
f
b
i
20+0.1C
MIN.
0.25
100
0.0
3.0
-10
0.6
1.3
0.6
0.6
0.6
1.3
0.5
C
0
0
1
-
-
-
-
-
-
b
; total capacitance of one bus line in pF.
b
t
SP
t
SU:STO
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NJW1148
t
r
MAX.
250
400
300
300
400
1.5
5.0
0.4
0.9
50
10
10
-
-
-
-
-
-
-
-
-
-
P
t
BUF
– 5 –
UNIT
kHz
µA
ns
ns
pF
µs
µs
µs
µs
µs
ns
ns
ns
µs
µs
pF
V
V
V
V
V
V
S