PL602-XX PL602-XX PL602-XX HCSL Compatible Clock Generator for PCI Express FEATURES PIN CONFIGURATION Input Frequency: o Fundamental Crystal or Reference Input: 25MHz XIN 1 8 XOUT Output Frequency: o PL602-21: 100MHz differential outputs. GND 2 7 OE o PL602-22: 125MHz differential outputs. CLK0 3 6 DNC o PL602-23: 200MHz differential outputs. CLK1 4 5 VDD o PL602-26: 25MHz differential outputs. o PL602-27: 250MHz differential outputs. SOP-8L o PL602-15: 156.25 MHz differential outputs. Very low Jitter: 28ps Pk-Pk typ. CLK1 1 6 CLK0 Very low Phase Noise: o -130 dBc at 10kHz offset at 100MHz GND 2 5 VDD No external loop filter is required Power supply range: 2.25V to 3.63V FIN 3 4 OE Operating temperature range from -40 C to 85 C SOT23-6L Available in 6-pin SOT or 8-pin SOP Green/RoHS compliant package. DESCRIPTION The PL602-XX is the smallest, high performance, lowest power differential output clock IC available for HCSL timing applications. PL602-XX offers -130dBc at 10kHz offset at 100MHz, with a very low jitter (2 ps TIE RMS), making it ideal for HCSL applications requiring small size and low power. BLOCK DIAGRAM OE XIN, FIN Q Phase Xtal Locked Osc Loop XOUT QB PIN DESCRIPTION Pin Description Name Type SOP SOT23 XIN 1 - I Crystal input (SOP package only) FIN - 3 I Reference clock input (SOT23 package only) GND 2 2 P GND connection CLK 0:1 3,4 1,6 O Differential clock outputs note:CLK0=~CLK1 VDD 5 5 P VDD connection DNC 6 - - Do not connect OE 7 4 I Output enable (OE) input. Internal 60K pull up resistor. XOUT 8 - O Crystal output pin. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1(408) 944 -0800 fax +1(408) 474-1000 www.micrel.com Rev 02/08/11 Page 1 PL602-XX HCSL Compatible Clock Generator for PCI Express ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PARAMETERS SYMBOL MIN. MAX. UNITS Supply Voltage Range V -0.5 4.6 V DD Input Voltage Range V -0.5 V +0.5 V I DD Output Voltage Range V -0.5 V +0.5 V O DD Soldering Temperature 260 C Storage Temperature T -65 150 C S Ambient Operating Temperature* -40 +85 C Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. *Operating temperature is guaranteed by design. Parts are tested to commercial grade only. AC SPECIFICATIONS PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS Crystal Input Frequency Fundamental Crystal 25 MHz Input (F ) Frequency 25 MHz IN Input (F ) Signal Amplitude Internally AC coupled 0.9 V Vpp IN DD Output Frequency 25 200 MHz OE Function Ta=25 C, Add one clock Output Enable Time period to this measurement for a usable 10 ns clock output. Output Disable Time OE Function Ta=25 C 10 ns Settling Time At power-up (V > 2.25V) 10 ms DD VDD Sensitivity Frequency vs. V , 10% -2 2 ppm DD Output Rise Time 10/90%V 0.3 0.5 ns OH Output Fall Time 90/10%V 0.3 0.5 ns OH Skew Between Outputs Measured at 50% V 250 ps OH Duty Cycle At V /2 45 50 55 % DD Period Jitter, peak-to-peak 28 ps - With capacitive decoupling between V DD Cycle-to-Cycle, RMS 9 ps and GND - At 100MHz Cycle-to-Cycle, peak 25 ps - 20,000 samples measured TIE, RMS 2 ps Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1(408) 944 -0800 fax +1(408) 474-1000 www.micrel.com Rev 02/08/11 Page 2