853S058 Datasheet, PDF (1/19 Pages) Integrated Device Technology – Maximum output frequency

8:1 Differential-to-3.3V or 2.5V
LVPECL/ECL Clock Multiplexer
853S058
DATA SHEET
General Description
The 853S058 is an 8:1 Differential-to-3.3V or 2.5V LVPECL / ECL
Clock Multiplexer which can operate up to 2.5 GHz. The 853S058
has 8 differential selectable 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).
Block Diagram
PCLK0 ^Pulldown
nPCLK0 ^{Pullup/Pulldown}
PCLK1 ^Pulldown
nPCLK1 ^{Pullup/Pulldown}
PCLK2 ^Pulldown
nPCLK2 ^{Pullup/Pulldown}
000
(default)
001
010
PCLK3 ^Pulldown
nPCLK3 ^{Pullup/Pulldown}
011
Q
PCLK4 ^Pulldown
nQ
nPCLK4 ^{Pullup/Pulldown}
100
PCLK5 ^Pulldown
nPCLK5 ^{Pullup/Pulldown}
101
PCLK6 ^Pulldown
nPCLK6 ^{Pullup/Pulldown}
110
PCLK7 ^Pulldown
nPCLK7 ^{Pullup/Pulldown}
111
Features
• High speed 8:1 differential muliplexer
• One differential 3.3V or 2.5V LVPECL output pair
• Eight selectable differential PCLKx, nPCLKx input pairs
• Differential PCLKx, nPCLKx pairs can accept the following
interface levels: LVPECL, LVDS, SSTL,CML
• Maximum output frequency: 2.5GHz
• Translates any single ended input signal to LVPECL levels with
resistor bias on nPCLKx input
• Additive phase jitter, RMS: 0.075ps (typical)
• Part-to-part skew: 350ps (maximum)
• Propagation delay: 600ps (maximum)
• LVPECL mode operating voltage supply range:
V_CC = 2.375V to 3.465V, V_EE = 0V
• ECL mode operating voltage supply range:
V_CC = 0V, V_EE = -3.465V to -2.375V
• -40°C to 85°C ambient operating temperature
• Available in lead-free (RoHS 6) package
Pin Assignment
PCLK0 1
nPCLK0 2
PCLK1 3
nPCLK1 4
V_CC 5
SEL0 6
SEL1 7
SEL2 8
PCLK2 9
nPCLK2 10
PCLK3 11
nPCLK3 12
24 PCLK7
23 nPCLK7
22 PCLK6
21 nPCLK6
20 VCC
19 Q
18 nQ
17 VEE
16 PCLK5
15 nPCLK5
14 PCLK4
13 nPCLK4
853S058
24-Lead TSSOP, 173-MIL
4.4mm x 7.8mm x 0.925mm
package body
G Package
Top View
SEL2 ^Pulldown
SEL1 ^Pulldown
SEL0 ^Pulldown
853S058 REVISION B 1/6/15
1
©2015 Integrated Device Technology, Inc.