Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
LED Driver IC
PT6964
APPLICATION CIRCUIT
DIGIT1
DIGIT2
DIGIT3
DIGIT4
DIGIT5
51K
GND
GR1
GR2
GND
GR3
GR4
GND
VDD
OSC
DI/O
CLK
STB
K1
K2
VDD
SG1/KS1
DIGIT6
SEG12
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
MCU
+5V
+5V
10K
+5V
0.1 f
SG2/KS2 SG14/GR5
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG13/GR6
SG12/GR7
SG10/KS10
SG9/KS9
SG8/KS8
Note:
1. The capacitor (0.1µF) connected between the GND and the VDD pins must be located as close as
possible to the PT6964 chip.
2. It is strongly suggested that the NC pin (pins 13) be connected to the GND.
3. The PT6964 power supply is separate from the application system power supply.
PT6964 V1.0
- 3 -
April, 2005
PTC [ PRINCETON TECHNOLOGY CORP ]
