PI6LC48C21 Single Output LVCMOS Clock Generator Features Description Single LVCMOS output e PTh I6LC48C21 is a single LVCMOS output synthesizer opti - mized to generate Ethernet reference clock frequencies and is a Supports 125MHz or 130MHz output frequencies member of Pericoms HiFlex family of high performance clock RMS phase jitter 125MHz, using a 25MHz crystal solutions. Using a 25MHz crystal, It can generate 125MHz with (1.875MHz 20MHz): 0.15ps (typical) very low phase jitter. RMS phase jitter 125MHz, using a 25MHz crystal It is ideal for Ethernet interface in all kind of systems. (12kHz 20MHz): 0.33ps (typical) Full 3.3V or 2.5V supply modes Industrial ambient operating temperature Available in lead-free package: 8-TSSOP Applications Networking systems Block Diagram Pin Configuration OE XTAL IN VDDA 8 1 VDD OSC PFD VCO /5 XTAL OUT CLK OE 7 CLK 2 XTAL OUT 6 3 GND XTAL IN 5 4 NC /25 www.pericom.com PI6LC48C21 Rev. B 08/04/15 15-0105 1PI6LC48C21 Single Output LVCMOS Clock Generator Pinout Table Pin No. Pin Name I/O Type Description 1 VDDA Power Analog Power Supply 2 OE Input Pull-up High: Output enabled Low: Output high impedence XTAL OUT, 3, 4 Crystal Crystal Input and Output XTAL IN 5 NC No Connect 6 GND Power Ground 7 CLK Output Output Clock 8 VDD Power Power Supply Typical Crystal Requirement Parameter Minimum Typical Maximum Units Mode of Oscillation Fundamental Frequency 22.4 25 27.2 MHz Equivalent Series Resistance 50 (ESR) Shunt Capacitance 7 pF Drive Level 1 mW Recomended Crystal Specification Pericom recommends: a) FL2500047, SMD 3.2x2.5(4P), 25MHz, CL=18pF, +/-20ppm.