VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
High-Speed Octal
Programmable Timing Generator
VSC6048
Table 9: Pin Identifications
Pin #
Signal Name Signal Type
Levels
Description
DAC Reference Supply
1
DAC_REF
VCC
—
+3.0V
2
—
0V
Ground
3
TSET35
TSET36
TSET37
TSET38
TSET39
VTT
TTL
TTL
TTL
TTL
TTL
—
I
Timeset Data for Channel 3, Bit 5
Timeset Data for Channel 3, Bit 6
Timeset Data for Channel 3, Bit 7
Timeset Data for Channel 3, Bit 8
Timeset Data for Channel 3, Bit 9
Power Supply
4
I
5
I
6
I
7
I
8
-2.0V
9
IN0A
ECL
ECL
ECL
ECL
ECL
ECL
ECL
ECL
—
I
Channel 0, Input A
Channel 0, Input B
Channel 1, Input A
Channel 1, Input B
Channel 2, Input A
Channel 2, Input B
Channel 3, Input A
Channel 3, Input B
Ground
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
IN0B
I
IN1A
I
IN1B
I
IN2A
I
IN2B
I
IN3A
I
IN3B
I
VCC
0V
DAC_REF
VPLL
VGND
RCK
—
+3.0V
DAC Reference Supply
PLL Power Supply
PLL Ground
—
-2.0V
—
0V
ECL
ECL
—
I
PLL Reference Clock
PLL Reference Clock, Complementary
Ground
RCKN
VCC
I
0V
VGND
VPLL
VTT
—
0V
PLL Ground
—
-2.0V
PLL Power Supply
Power Supply
—
-2.0V
IN4A
ECL
ECL
ECL
ECL
ECL
ECL
ECL
ECL
—
I
I
Channel 4, Input A
Channel 4, Input B
Channel 5, Input A
Channel 5, Input B
Channel 6, Input A
Channel 6, Input B
Channel 7, Input A
Channel 7, Input B
Ground
IN4B
IN5A
I
IN5B
I
IN6A
I
IN6B
I
IN7A
I
IN7B
I
VCC
0V
I
TSET40
TSET41
TTL
TTL
Timeset Data for Channel 4, Bit 0
Timeset Data for Channel 4, Bit 1
I
Page 10
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
G52335-0,Rev.4.0
8/28/00
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
