
6
VOSL
O
External feedback resistor
7
VINFFC
I
Focus feedback signal input
8
VCC
I
5V power supply
9
PVCC1
I
5V power supply
10
PGND
I
Ground
11
VOSL-
O
Main axis drive reverse voltage output
12
VO2+
O
Main axis drive forward direction voltage output
13
VOFC-
O
Focus drive reverse voltage output
14
VOSC+
O
Focus drive forward voltage output
15
VOTK+
O
Trace drive forward direction voltage output
16
VOTK-
O
Trace drive reverse voltage output
17
VOLD+
O
Feed drive forward direction voltage output
18
VOLD-
O
Feed drive reverse voltage output
19
PGND
I
Ground
20
VINFTK
I
Trace feedback signal input
21
PVCC2
I
5V power supply
22
PREGND
I
Ground
23
VINLD
I
Feed control signal input
24
CTK2
I
External feedback loop
25
CTK1
I
External feedback loop
26
VINTK
I
Trace control signal input
27
BIAS
I
1.4V reference voltage input
28
STBY
I
Enable control signal
3.5.9 function introduction to PT6961
1. DESCRIPTION
PT6961 (U401) is an LED Controller driven on a 1/7 to 1/8 duty factor. Eleven segment output lines, six
grid output lines, 1 segment/grid output lines, one display memory, control circuit, key scan circuit are all
incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer.
Serial data is fed to PT6961 via a four-line serial interface. Housed in a 32-pin SO Package, PT6961 pin
assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
2. FEATURES
◆
CMOS Technology
◆
Low Power Consumption
- 75 -
Содержание DV718SI
Страница 1: ...service manual DV718SI...
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