PT2257-S Просмотр технического описания (PDF) - Princeton Technology
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PT2257-S Datasheet PDF : 16 Pages
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Electronic Volume Controller IC
PT2257
I2C BUS SECTION ELECTRICAL CHARACTERISTICS
Parameter
Bus high input level
Bus low input level
Symbol
VIH
VIL
Condition
VDD=9V
VDD=9V
Min.
0.4
0
Typ.
-
-
Max.
VDD
0.2
Unit
VDD
VDD
BUS LINE TIMING CHARACTERISTICS
Parameter
Symbol
Condition
Low level input voltage
VIL
High level input voltage
VIH
SCL clock frequency
fSCL
Time the bus must be free before a
new transmission can start
tBUF
VDD=4.0V
VDD=4.0V
Hold time start condition*
tHD-STA
Clock low period
tLOW
Clock high period
tHIGH
Setup time for start condition **
tSU-STA
Data hold time
tHD-DAT
Data setup time
Rise time (SDA & SCL Lines)
Fall time (SDA & SCL Lines)
Stop condition setup time
Notes:
tSU-DAT
tR
tF
tSU-STO
1. * = The first clock pulse is generated after this period.
2. ** = This is only relevant for a repeated start condition.
Min. Max. Unit
-0.5
1.1
V
1.6
4.0
V
0
100 KHz
5.0
-
µs
4.0
-
µs
5.0
-
µs
4.0
-
µs
5.0
-
µs
0
-
µs
250
-
ns
-
1000 ns
-
300
ns
4.0
-
µs
PT2257 V1.4
- 10 -
May, 2008
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