8:1 Differential-to-LVDS Clock Multiplexer
ICS854S058I
DATASHEET
General Description
Features
The ICS854S058I is an 8:1 Differential-to-LVDS Clock Multiplexer
which can operate up to 2.5GHz. The ICS854S058I has 8
selectable differential clock inputs. The PCLK, nPCLK input pairs
can accept LVPECL, LVDS, SSTL or CML levels. The fully
differential architecture and low propagation delay make it ideal for
use in clock distribution circuits. The select pins have internal
pulldown resistors. The SEL2 pin is the most significant bit and the
binary number applied to the select pins will select the same
numbered data input (i.e., 000 selects PCLK0, nPCLK0).
• High speed 8:1 differential multiplexer
• One differential LVDS output pair
• Eight selectable differential PCLK, nPCLK input pairs
• PCLKx, nPCLKx pairs can accept the following differential
input levels: LVPECL, LVDS, SSTL, CML
• Maximum output frequency: 2.5GHz
• Translates any single ended input signal to LVDS levels with
resistor bias on nPCLKx input
• Additive phase jitter, RMS: 0.065ps (typical)
• Part-to-part skew: 300ps (maximum)
• Propagation delay: 600ps (maximum)
• Supply voltage range: 3.135V to 3.465V
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) packaging
Block Diagram
Pin Assignment
PCLK7
nPCLK7
PCLK6
nPCLK6
1
2
24
23
PCLK0
nPCLK0
Pulldown
PCLK0
nPCLK0
Pullup/Pulldown
0 0 0
3
4
22
21
PCLK1
nPCLK1
(default)
Pulldown
PCLK1
nPCLK1
5
6
7
20
19
18
17
VDD
Q
nQ
GND
VDD
SEL0
SEL1
0 0 1
0 1 0
Pullup/Pulldown
Pulldown
PCLK2
SEL2
8
9
10
11
12
Pullup/Pulldown
nPCLK2
PCLK2
nPCLK2
PCLK3
nPCLK3
16
15
14
13
PCLK5
nPCLK5
PCLK4
nPCLK4
Pulldown
PCLK3
Pullup/Pulldown
0 1 1
nPCLK3
Q
nQ
Pulldown
PCLK4
nPCLK4
ICS854S058I
24-Lead TSSOP, 173-MIL
7.8mm x 4.4mm x 0.925mm package body
1 0 0
1 0 1
Pullup/Pulldown
Pulldown
PCLK5
nPCLK5
Pullup/Pulldown
G Package
Top View
Pulldown
PCLK6
Pullup/Pulldown
1 1 0
1 1 1
nPCLK6
Pulldown
PCLK7
Pullup/Pulldown
nPCLK7
Pulldown
SEL2
Pulldown
Pulldown
SEL1
SEL0
ICS854S058AGI REVISION A OCTOBER 29, 2012
1
©2012 Integrated Device Technology, Inc.