SM8230A_06 Datasheet, PDF (4/8 Pages) NEC – Tone Dialer with Built-in Piezo Driver

SM8230A
AC Characteristics
V_DD = 2.6 to 3.3V, V_SS = 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
f_CLK = 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
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