Table of Contents
Advertisement
IC DESCRIPTION (GE-NDVH2450)
IC, LC866448W
Pin No.
Pin Name
1
O-C.SHIFT
2
PRO LOGIC
3
3-STEREO
4
PHANTOM
5
NORMAL
6
NC
7
RESET
8,9
NC
10
VSS1
11
CF1
12
CF2
13
VDD1
14
I-HOLD
15
I-KEY1
16
NC
17
I-SPEANA
18
NC
19
I-JOG
20~23
NC
24
PRO LOGIC
25~33
G1~G9
34~40
S1~S7
41
VDD2
42
VP
43~63
S8~S28
64
NC
65,66
LED ON
67~69
NC
70
O-L FREQ ON
71
O-H FREQ ON
72
NC
73
VSS2
74
SPEANA C
75
SPEANA B
76
SPEANA A
77
SEL
78,79
NC
80
I/O-SERIAL
I/O
Description
O
Micro computer clock shift output.
O
PRO LOGIC LED output. (Not used)
O
3 STEREO LED output.
O
PHANTOM LED output.
O
NORMAL LED output.
–
Not connected.
I
Reset input.
–
Connected to GND.
–
GND.
–
Connected to crystal oscillator (5.76 MHZ).
–
–
Power supply.
System power supply monitor AD input.'H':Normal operation.'L':to stop
I
clock and main memory.
I
KEY 1 AD input.
–
Connected to GND.
I
Spectrum analyzer level AD input.
–
Connected to GND.
I
Jog rotary encoder input.
–
Connected to GND.
I
Input prologic switch "H" when prologic ,"L" when not prologic. (Connected to GND)
O
FL gird output.
O
FL Segment output.
–
Connected to GND.
–
Power FL display negative supply terminal.
O
FL Segment S8~S28 output.
–
Not connected.
O
MULTI JOG LED output.
–
Not connected.
O
Spectrum analyzer low frequency output.
O
Spectrum analyzer high frequency output.
–
Not connected.
–
GND.
O
Spectrum analyzer band switch output C.
O
Spectrum analyzer band switch output B.
O
Spectrum analyzer band switch output A.
O
Spectrum analyzer band switch output select .
–
Not connected.
I/O
Input/output serial data for communication.
– 59 –
Advertisement
Table of Contents
