MAX9311 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 1:10 Differential LVPECL/LVECL/HSTL Clock and Data Drivers

19-2078; Rev 2; 10/02
1:10 Differential LVPECL/LVECL/HSTL
Clock and Data Drivers
General Description
The MAX9311/MAX9313 are low-skew, 1-to-10 differen-
tial drivers designed for clock and data distribution.
These devices allow selection between two inputs. The
selected input is reproduced at 10 differential outputs.
The differential inputs can be adapted to accept single-
ended inputs by connecting the on-chip V_BB supply to
one input as a reference voltage.
The MAX9311/MAX9313 feature low part-to-part skew
(30ps) and output-to-output skew (12ps), making them
ideal for clock and data distribution across a backplane
or a board. For interfacing to differential HSTL and
LVPECL signals, these devices operate over a +2.25V
to +3.8V supply range, allowing high-performance clock
or data distribution in systems with a nominal +2.5V or
+3.3V supply. For differential LVECL operation, these
devices operate from a -2.25V to -3.8V supply.
The MAX9311 features an on-chip V_BB reference output
of 1.425V below the positive supply voltage. The
MAX9313 offers an on-chip V_BB reference output of
1.32V below the positive supply voltage.
Both devices are offered in space-saving, 32-pin 5mm ✕
5mm TQFP, 5mm x 5mm QFN, and industry-standard
32-pin 7mm x 7mm LQFP packages.
Applications
Precision Clock Distribution
Low-Jitter Data Repeater
TOP VIEW
V_CC Q0 Q0 Q1 Q1 Q2 Q2 V_CC
32 31 30 29 28 27 26 25
Features
o +2.25V to +3.8V Differential HSTL/LVPECL
Operation
o -2.25V to -3.8V LVECL Operation
o 30ps (typ) Part-to-Part Skew
o 12ps (typ) Output-to-Output Skew
o 312ps (typ) Propagation Delay
o ≥ 300mV Differential Output at 3GHz
o On-Chip Reference for Single-Ended Inputs
o Output Low with Open Input
o Pin Compatible with MC100LVEP111 (MAX9311)
and MC100EP111 (MAX9313)
o Offered in Tiny QFN* Package (70% Smaller
Footprint than LQFP)
Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
MAX9311ECJ -40°C to +85°C 32 LQFP (7mm ✕ 7mm)
MAX9311EGJ* -40°C to +85°C
MAX9311EHJ* -40°C to +85°C
32 QFN (5mm ✕ 5mm)
32 TQFP (5mm ✕ 5mm)
MAX9313ECJ
MAX9313EGJ*
MAX9313EHJ*
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
32 LQFP (7mm ✕ 7mm)
32 QFN (5mm ✕ 5mm)
32 TQFP (5mm ✕ 5mm)
*Future product—contact factory for availability.
Pin Configuration
V_CC 1
CLKSEL 2
CLK0 3
CLK0 4
V_BB 5
CLK1 6
CLK1 7
V_EE 8
MAX9311
MAX9313
24 Q3
23 Q3
22 Q4
21 Q4
20 Q5
19 Q5
18 Q6
17 Q6
LQFP (7mm × 7mm), TQFP (5mm × 5mm),
QFN (NO LEADS EXTENDING FROM QFN PACKAGE)
MAX9311/MAX9313
CLKSEL
0
1
CLK0, CLK0 CLK1, CLK1
ON
OFF
OFF
ON
9 10 11 12 13 14 15 16
V_CC Q9 Q9 Q8 Q8 Q7 Q7 V_CC
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