FS6058-01 View Datasheet(PDF) - AMI Semiconductor
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Description
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FS6058-01 Datasheet PDF : 10 Pages
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AMERICAN MICROSYSTEMS, INC.
November 2000
FS6058-01
LVPECL to HCSL/LVTTL Motherboard Clock Driver IC
Preliminary Information
1.0 Features
• Distributes one differential LVPECL reference clock
to six differential HCSL clock pairs and two single-
ended LVTTL MREF clocks
• HCSL current levels controlled by IREF current
reference and MULT_0:1 current multiplier pins
• Host clock frequency division selected via the
SEL_A, SEL_B, and SEL_U input signals
• Active-low PWR_DWN# signal disables all outputs
• Tristate output control via SEL_T facilitates board
testing
• Available in a 48-pin SSOP and TSSOP
Figure 1: Block Diagram
MULT_0:1
IREF
PWR_DWN#
SEL_T
PECL_P
PECL_N
SEL_A
SEL_B
SEL_U
Current
Adjust
÷
÷
Divider
Control
÷4
FS6058
VDD_H
HOST_P1,6
HOST_N1,6
VSS_H
VDD_H
HOST_P2:5
HOST_N2:5
VSS_H
VDD_M
MREF_P
MREF_N
VSS_M
Figure 2: Pin Configuration
VSS 1
VDD 2
VDD_R 3
PECL_P 4
PECL_N 5
VSS_R 6
VDD_M 7
MREF_P 8
MREF_N 9
VSS_M 10
VDD 11
VSS 12
VDD_L 13
VDD 14
VSS_L 15
SEL_T 16
MULT_0 17
MULT_1 18
VDD_L 19
VSS_L 20
SEL_A 21
SEL_B 22
SEL_U 23
PWR_DWN# 24
48 VDD
47 VSS_H
46 VDD_H
45 HOST_P1
44 HOST_N1
43 VSS_H
42 HOST_P2
41 HOST_N2
40 VDD_H
39 HOST_P3
38 HOST_N3
37 VSS_H
36 HOST_P4
35 HOST_N4
34 VDD_H
33 HOST_P5
32 HOST_N5
31 VSS_H
30 HOST_P6
29 HOST_N6
28 VDD_H
27 IREF
26 VSS_I
25 VDD_I
Table 1: Divider and Power-Down Control
PWR_
DWN#
1
1
1
1
1
1
1
1
1
CONTROL INPUTS
SEL_
T
SEL_
A
SEL_
B
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
X
X
0
X
X
X
SEL_
U
0
1
0
1
0
1
0
1
X
X
HOST_P1
HOST_N1
PECL ÷ 2
tristate
PECL ÷ 4
PECL ÷ 4
PECL
tristate
PECL ÷ 2
PECL ÷ 2
tristate
HOST_P1 =
2× IREF
HOST_N1 =
tristate
HOST_P2
HOST_N2
PECL ÷ 2
PECL ÷ 2
PECL ÷ 2
PECL ÷ 4
PECL
PECL
PECL
PECL ÷ 2
tristate
HOST_P2 =
2× IREF
HOST_N2 =
tristate
CLOCK OUTPUTS (MHz)
HOST_P3
HOST_N3
HOST_P4
HOST_N4
HOST_P5
HOST_N5
PECL ÷ 2
PECL ÷ 2
PECL ÷ 2
PECL ÷ 4
PECL
PECL
PECL
PECL ÷ 2
tristate
HOST_P3 =
2× IREF
HOST_N3 =
tristate
PECL ÷ 2
PECL ÷ 2
PECL ÷ 2
PECL ÷ 4
PECL
PECL
PECL
PECL ÷ 2
tristate
HOST_P4 =
2× IREF
HOST_N4 =
tristate
PECL ÷ 2
PECL ÷ 2
PECL ÷ 2
PECL ÷ 4
PECL
PECL
PECL
PECL ÷ 2
tristate
HOST_P5 =
2× IREF
HOST_N5 =
tristate
HOST_P6
HOST_N6
PECL ÷ 2
tristate
PECL ÷ 4
PECL ÷ 4
PECL
tristate
PECL ÷ 2
PECL ÷ 2
tristate
HOST_P6 =
2× IREF
HOST_N6 =
tristate
This document contains information on a new product. Specifications and information herein are subject to change without notice.
ISO9001
QS9000
MREF_P
MREF_N
PECL ÷ 4
PECL ÷ 4
PECL ÷ 4
PECL ÷ 4
PECL ÷ 4
PECL ÷ 4
PECL ÷ 4
PECL ÷ 2
tristate
MREF_P
= high
MREF_N
= low
11.10.00
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