MAX9315

· +2.375V to +3.8V Supply for Differential HSTL/LVPECL Operation
· -2.375V to -3.8V Supply for Differential LVECL Operation
· Two Selectable Differential Inputs
· Synchronous Output Enable/Disable
· 20ps Output-to-Output Skew
· 360ps Propagation Delay
· Guaranteed 400mV Differential Output at 1.5GHz
· On-Chip Reference for Single-Ended Inputs
· Input Biased Low when Left Open
· Pin Compatible with MC100LVEP14

Precision Clock Distribution
Low-Jitter Data Repeater
Data and Clock Driver and Buffer
Central Office Backplane Clock Distribution
DSLAM Backplane
Base Station
ATE

V_CC - V_EE...............................................................................4.1V
Inputs (CLK_, CLK_, SEL, EN)
to V_EE ...............................................(V_EE - 0.3V) to (V_CC + 0.3V)
CLK_ to CLK_ ....................................................................±3.0V
Continuous Output Current ...............................................50mA
Surge Output Current.......................................................100mA
VBB Sink/Source Current ..............................................±0.65mA
Continuous Power Dissipation (T_A = +70°C)
Single-Layer PC Board
20-Pin TSSOP (derate 7.69mW/°C above +70°C) .......615mW
Multilayer PC Board
20-Pin TSSOP (derate 10.9mW/°C above +70°C) .......879mW
Junction-to-Ambient Thermal Resistance in Still Air
Single-Layer PC Board
20-Pin TSSOP ...........................................................+130°C/W
Multilayer PC Board
20-Pin TSSOP .............................................................+91°C/W
Junction-to-Ambient Thermal Resistance with 500LFPM
Airflow Single-Layer PC Board
20-Pin TSSOP ............................................................+9.6°C/W
Junction-to-Case Thermal Resistance
20-Pin TSSOP ...................................................v.........+20°C/W
Operating Temperature Range ........................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +150°C
ESD Protection
Human Body Model (Inputs and Outputs) .........................2kV
Soldering Temperature (10s) ........................................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX9315 low-skew, 1-to-5 differential driver is designed for clock and data distribution. This device allows selection between two inputs. The selected input is reproduced at five differential outputs. The differential inputs of MAX9315 can be adapted to accept a single-ended input by connecting the on-chip VBB supply to one input as a reference voltage.

The MAX9315 features low output-to-output skew (20ps), making it ideal for clock and data distribution across a backplane or a board. For interfacing to differential HSTL and LVPECL signals, this device operates over a +2.375V to +3.8V supply range, allowing highperformance clock or data distribution in systems with a nominal +2.5V or +3.3V supply. For differential LVECL operation, this MAX9315 operates with a -2.375V to -3.8V supply.

The MAX9315 is offered in a space-saving 20-pin TSSOP package