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.