njw1221 New Japan Radio Co.,Ltd, njw1221 Datasheet - Page 6

• Manufacturer Part Number: njw1221
• Description: 4.1-channel Electronic Volume With 5 Bands Parametric Equalizer
• Manufacturer: New Japan Radio Co.,Ltd

SDA
SCL
NJW1221
t
t
f
HD:STA
NOTE). Please hold the Data Hold Time (t
– 6 –
Standard mode : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
Fast mode : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 50pF (Connected to GND)
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
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
I
I
2
2
C BUS Load Conditions:
S
C BUS CHARACTERISTICS (SDA, SCL)
t
t
LOW
r
DD
NOTE)
and 0.9V
PARAMETER
IHmin
t
HD:DAT
DDmax
to V
t
SU:DAT
ILmax
t
with
HIGH
HD:DAT
) to 300ns or more to avoid status of unstable at SCL falling edge.
t
f
t
SU:STA
SYMBOL
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STO
SU:STA
t
t
V
t
V
V
f
HIGH
V
V
V
LOW
t
SCL
BUF
C
t
C
SP
t
t
hys
I
OL
of
nL
nH
IH
IL
i
r
f
b
i
Sr
MIN.
250
-10
4.0
4.7
4.0
4.7
4.0
4.7
0.5
2.7
0
0
0
1
-
-
-
-
-
-
-
-
Standard mode
t
HD:STA
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX.
1000
250
100
300
400
0.4
1.5
5.5
10
10
C
-
-
-
-
-
-
-
-
-
-
-
-
b
; total capacitance of one bus line in pF.
+0.1C
t
MIN.
0.25
100
SP
-10
0.6
1.3
0.6
0.6
0.6
1.3
0.5
2.7
20
t
0
0
0
0
1
SU:STO
-
-
-
-
-
b
Fast mode
TYP.
t
r
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P
MAX.
250
400
300
300
400
0.4
1.5
5.5
50
10
10
t
-
-
-
-
-
-
-
-
-
-
-
BUF
UNIT
kHz
S
µA
ns
ns
pF
µs
µs
µs
µs
µs
ns
ns
ns
µs
µs
pF
V
V
V
V
V
V