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