LC75839PW Datasheet, PDF (22/27 Pages) Sanyo Semicon Device – 1/4 and 1/3-Duty General-Purpose LCD Display Driver

PWM output waveforms
LC75839PW
P1/P4
(1)
P2
P3
P1/P4
(2)
P2
P3
P1/P4
(3)
P2
P3
(56/64)×Tp
(48/64)×Tp
(40/64)×Tp
(8/64)×Tp
(16/64)×Tp
(24/64)×Tp
(32/64)×Tp
(32/64)×Tp
(32/64)×Tp
Tp
(56/64)×Tp
(48/64)×Tp
(40/64)×Tp
(8/64)×Tp
(16/64)×Tp
(24/64)×Tp
(32/64)×Tp
(32/64)×Tp
(32/64)×Tp
Tp
1
Tp= _fp
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
VDD
VSS
Control data
W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35
1
1
1
0
1
1
1
1
1
1
0
1
1
1
1
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
1
1
1
0
1
0
1
1
1
1
1
0
1
1
1
1
1
0
1
1
1
1
1
0
PWM output
waveforms
(1)
(2)
(3)
Control data
PWM output waveform frame frequency fp[Hz]
PF0
PF1
PF2
PF3
0
0
0
0
Internal oscillator operating mode
(The control data OC is 0,
fosc=300[kHz] typ)
fosc/1536
External clock operating mode
(The control data OC is 1 and
EXF is 0, fCK1=300[kHz] typ)
fCK1/1536
1
0
0
0
fosc/1408
fCK1/1408
0
1
0
0
fosc/1280
fCK1/1280
1
1
0
0
fosc/1152
fCK1/1152
0
0
1
0
fosc/1024
fCK1/1024
1
0
1
0
fosc/896
fCK1/896
0
1
1
0
fosc/768
fCK1/768
1
1
1
0
fosc/640
fCK1/640
0
0
0
1
fosc/512
fCK1/512
1
0
0
1
fosc/384
fCK1/384
0
1
0
1
fosc/256
fCK1/256
Note: When is setting (PF0,PF1,PF2,PF3)=(1,1,0,1) and (X,X,1,1), the frame frequency is same as frame frequency at
the time of the (PF0,PF1,PF2,PF3)=(1,0,1,0) setting (fosc/896, fCK1/896).
X: don’t care
No.A1953-22/27