MAX6972 查看數據表（PDF） - Maxim Integrated
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MAX6972 Datasheet PDF : 23 Pages
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16-Output PWM LED Drivers
for Message Boards
MAX6972 Block Diagram
EXT. PNP
MUX0
OUTPUT
8-BIT
Y CALDAC
Y LED OUTPUT
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
ISET
Y LED DRIVERS
Y7–Y0
8-BIT
Z CALDAC
Z LED OUTPUT
Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0
EXT. PNP
ISET
Z LED DRIVERS
Z0–Z7
MUX1
OUTPUT
LOADI
CLKI
DIN
PWM
COUNTERS
SYNC
CONTROL
8
8
8
8
16
7-BIT GLOBAL-INTENSITY FRAME MODULATOR
0/1
12-BIT INDIVIDUAL INPUT MODULATOR
CALIBRATION
DATA LATCH
7
192
192
LOAD
MUX0 PIXEL PWM OLD DATA LATCH
OE
192
GLOBAL- 7
INTENSITY
7 DATA LATCH
192
LOAD
MUX1 PIXEL PWM OLD DATA LATCH
OE
192
EN MUX0 PIXEL PWM NEW DATA LATCH
192
MUX1 PIXEL PWM NEW DATA LATCH EN
192
SYNC DETECT
192
D Q1
MAX6972
192-BIT DATA SHIFT REGISTER
24-BIT NEW HEADER
SHIFT REGISTER
LOADO
CLKO
DOUT
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