IDT8T53S111I Datasheet, PDF (1/18 Pages) Integrated Device Technology – Ten low skew, low additive jitter LVPECL outputs

1:10 LVPECL Output Fanout Buffer
IDT8T53S111I
DATA SHEET
General Description
The IDT8T53S111I is a high-performance differential LVPECL fanout
buffer. The device is designed for the fanout of high-frequency, very
low additive phase-noise clock and data signals. The IDT8T53S111I
is characterized to operate from a 3.3V and 2.5V power supply.
Guaranteed output-to-output and part-to-part skew characteristics
make the IDT8T53S111I ideal for those clock distribution
applications demanding well-defined performance and repeatability.
Two selectable differential inputs and ten low skew outputs are
available. The integrated V_REF voltage generator enables easy
interfacing of single-ended signals to the device inputs. The device is
optimized for low power consumption and low additive phase noise.
Features
• Ten low skew, low additive jitter LVPECL outputs
• Two selectable, differential LVPECL clock inputs
• Differential pairs can accept the following differential input
levels: LVDS, LVPECL and CML
• Maximum input clock frequency: 2.5GHz
• LVCMOS interface levels for the control input (input select)
• Output skew: 15ps (typical)
• Propagation delay: 250ps (typical)
• Additive phase jitter, RMS; f_REF = 156.25MHz (12kHz - 20MHz):
30fs (typical)
• Full 3.3V and 2.5V supply voltage
• Maximum device current consumption (I_EE): 126mA
• Lead-free (RoHS 6) 32-Lead VFQFN package
• -40°C to 85°C ambient operating temperature
Block Diagram
PCLK0
nPCLK0
Pulldown
PU / PD
0
1
PCLK1
nPCLK1
Pulldown
PU / PD
SEL
V_REF
Pulldown
VOLTAGE
REFERENCE
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
Q9
nQ9
Pin Assignment
24 23 22 21 20 19 18 17
VCCO 25
16 VCCO
nQ2 26
15 Q7
Q2 27
14 nQ7
nQ1 28
13 Q8
Q1 29
12 nQ8
nQ0 30
11 Q9
Q0 31
10 nQ9
VCCO 32
9 VCCO
12 34 5 67 8
IDT8T53S111I
32-lead VFQFN
5mm x 5mm x 0.925mm package body
3.15mm x 3.15mm E-Pad
NL Package, Top View
IDT8T53S111NLGI REVISION A JULY 12, 2012
1
©2012 Integrated Device Technology, Inc.