SM8230AS データシートの表示（PDF） - Nippon Precision Circuits

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SM8230AS

Tone Dialer with Built-in Piezo Driver

Nippon Precision Circuits  

SM8230A

AC Characteristics

VDD = 2.6 to 3.3V, VSS = 0 V, Ta = −20 to 70 °C

Parameter

Symbol

Condition

Tone output frequency error

∆f

Tone distortion1

DIS

CLK cycle time

CLK LOW-level pulsewidth

CLK HIGH-level pulsewidth

OE setup time

OE hold time

SCL cycle time

SCL LOW-level pulsewidth

SCL HIGH-level pulsewidth

Input data setup time

Input data hold time

tCLK

tCLKL

tCLKH

tSUOE

tHDOE

tSCL

tSCLL

tSCLH

tSUD

tHDD

1.Ta = -10 to 70°C, THD + N (10 Hz to 500 kHz), no load

System clock input timing

fCLK = 3.84 MHz,

no deviation

BZH/BZL

CLK input waveform

Between OE and SCL

SCL input waveform

Between SD and SCL

Rating

Unit

min

typ

max

–

–

0.37

%

–

5

250

–

100

–

100

–

100

–

100

–

1

–

400

–

400

–

100

–

100

–

10

%

–

ns

–

ns

–

ns

–

ns

–

ns

–

µs

–

ns

–

ns

–

ns

–

ns

CLK

tCLKL

tCLK

Serial data transfer timing

OE

SCL

1

2

SD

DATA(b15)

DATA(b14)

tSUD

tSCLH

tSCLL

tSUOE

tHDD

tSCL

tCLKH

16

DATA(b0)

tHDOE

NIPPON PRECISION CIRCUITS—4

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