HV633_03 Datasheet, PDF (7/11 Pages) Supertex, Inc – 32-Channel 128-Level Amplitude Gray-Shade Display Column Driver

Typical Panel Connections
Data Bus
(7)
DIR = LOW
V_R, V_PP
LVGND, HVGND,
SC, LC, CC, CSO
32
1
32
1
V_R, V_PP
LVGND, HVGND,
SC, LC, CC, CSI
DIR = HIGH
Data Bus
(7)
1
32
Display Panel
(Example)
1
32
HV633
32
1
1
32
Gray Shade Decoding Scheme
Shade Number
128
127
126
125
124
123
122
121
D7 D6 D5 D4 D3 D2 D1
1111111
1111110
1111101
1111100
1111011
1111010
1111001
1111000
7
0000110
6
0000101
5
0000100
4
0000011
3
0000010
2
0000001
1
0000000
Gray Scale Voltage
(000 0000) ^VR
HV_OUT
HV_OUT
HV_OUT
HV_OUT
0 1 2 • • • 127
Clock Cycle
(111 1111)
HV_OUT
7