SM8230A 查看數據表（PDF） - NEC => Renesas Technology

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SM8230A

Tone Dialer with Built-in Piezo Driver

NEC => Renesas Technology 

SM8230A

AC Characteristics

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

Parameter

Symbol

Condition

Tone output frequency error

∆f

Tone distortion1

DIS

CLK cycle time

t CLK

CLK LOW-level pulsewidth

t CLKL

CLK HIGH-level pulsewidth

t CLKH

OE setup time

t SUOE

OE hold time

t HDOE

SCL cycle time

t SCL

SCL LOW-level pulsewidth

t SCLL

SCL HIGH-level pulsewidth

t SCLH

Input data setup time

t SUD

Input data hold time

t HDD

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

fCLK = 3.84MHz,

no deviation

BZH/BZL

CLK input waveform

Between OE and SCL

SCL input waveform

Between SD and SCL

System clock input timing

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

Serial data transfer timing

tCLKL

tCLK

tCLKH

OE

SCL

SD

1

2

DATA(b15)

DATA(b14)

tSUD

tSUOE

tSCLH

tSCLL

tHDD

tSCL

16

DATA(b0)

tHDOE

SEIKO NPC CORPORATION —4

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