SM8230A Datasheet, PDF (4/7 Pages) Nippon Precision Circuits Inc – Tone Dialer with Built-in Piezo Driver

SM8230A
AC Characteristics
V_DD = 2.6 to 3.3V, V_SS = 0 V, T_a = −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
t_CLK
t_CLKL
t_CLKH
t_SUOE
t_HDOE
t_SCL
t_SCLL
t_SCLH
t_SUD
t_HDD
1.T_a = -10 to 70°C, THD + N (10 Hz to 500 kHz), no load
System clock input timing
f_CLK = 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