ICS670-03
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER ZDB AND MULTIPLIER
IDT™ / ICS™
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER 4
ICS670-03 REV J 051310
AC Electrical Characteristics
VDD = 3.3V ±10%, Ambient Temperature -40 to +85° C, unless stated otherwise
Note 1: Rising edge of ICLK compared with rising edge of CLK2, with FBCLK connected to FBIN, and 15 pF load
on CLK2. See graph on page 5 for skew vs. frequency and loading.
Thermal Characteristics
Short Circuit Current I
OS
Each output ±50 mA
Internal Pull-up Resistor R
PU
OE, select pins 200 kΩ
Input Capacitance C
IN
OE, select pins 5 pF
Parameter Symbol Conditions Min. Typ. Max. Units
Parameter Symbol Conditions Min. Typ. Max. Units
Input Clock Frequency f
IN
See table on page 2 5 210 MHz
Output Clock Frequency 210 MHz
Output Rise Time t
OR
0.8 to 2.0 V, no load 1.5 ns
Output Fall Time t
OF
2.0 to 0.8 V, no load 1.5 ns
Output Clock Duty Cycle t
DC
measured at VDD/2 40 50 60 %
Input to Output Skew Note 1 ±100 ps
Maximum Absolute Jitter short term ±45 ps
Maximum Jitter one sigma 15 ps
Phase Noise, relative to
carrier, 125 MHz (x5)
100 Hz offset -110 dBc/Hz
1 kHz offset -122 dBc/Hz
10 kHz -124 dBc/Hz
200 kHz -117 dBc/Hz
Parameter Symbol Conditions Min. Typ. Max. Units
Thermal Resistance Junction to
Ambient
θ
JA
Still air 120 ° C/W
θ
JA
1 m/s air flow 115 ° C/W
θ
JA
3 m/s air flow 105 ° C/W
Thermal Resistance Junction to Case θ
JC
58 ° C/W
