ICS670-01 Datasheet, PDF (4/7 Pages) Integrated Circuit Systems – Low Phase Noise Zero Delay Buffer and Multiplier

ICS670-01
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER
ZDB AND MULTIPLIER
AC Electrical Characteristics
VDD = 3.3V ±10%, Ambient Temperature -40 to +85C, unless stated otherwise
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Input Clock Frequency
Output Clock Frequency
f_IN
See table on page 2
5
160 MHz
160 MHz
PLL Stabilization Time
t_STAB Input frequency 5 MHz to 160 MHz
4
10
µs
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
45
50 55
%
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
1 kHz offset
-110
-122
dBc/Hz
dBc/Hz
10 kHz
-124
dBc/Hz
200 kHz
-117
dBc/Hz
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
Parameter
Symbol Conditions
Thermal Resistance Junction to
Ambient
_JA Still air
_JA 1 m/s air flow
_JA 3 m/s air flow
Thermal Resistance Junction to Case _JC
Min.
Typ.
120
115
105
58
Max.
Units
C/W
C/W
C/W
C/W
IDT® LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER
4
ICS670-01 REV L 012315