Datasheet

AD9572
Rev. B | Page 5 of 20
LVPECL CLOCK OUTPUT JITTER
Typical (typ) is given for V
S
= 3.3 V, T
A
= 25°C, unless otherwise noted.
Table 3.
Jitter Integration
Bandwidth (Typ)
100
MHz
106.25
MHz
125 MHz
33M =
Off/On
156.25
MHz Unit Test Conditions/Comments
12 kHz to 20 MHz (Typ) 0.61 0.45 0.44/2.2 0.46 ps rms
LVPECL output frequency combinations are 1 × 156.25
MHz, 1 × 100 MHz, 1 × 125 MHz, 2 × 106.25 MHz
12 kHz to 20 MHz (Max) 0.87 0.81
0.56 (off
only)
0.56 ps rms
LVPECL output frequency combinations are 1 × 156.25
MHz, 1 × 100 MHz, 1 × 125 MHz, 2 × 106.25 MHz
1.875 MHz to 20 MHz (Typ) 0.28 ps rms
LVPECL output frequency combinations are 1 × 156.25
MHz, 1 × 100 MHz, 1 × 125 MHz, 2 × 106.25 MHz
637 kHz to 10 MHz (Typ) 0.23 ps rms
LVPECL output frequency combinations are 1 × 156.25
MHz, 1 × 100 MHz, 1 × 125 MHz, 2 × 106.25 MHz
200 kHz to 10 MHz (Typ) 0.38 0.24/2.2 ps rms
LVPECL output frequency combinations are 1 × 156.25
MHz, 1 × 100 MHz, 1 × 125 MHz, 2 × 106.25 MHz
12 kHz to 35 MHz (Typ)
0.52 (off
only)
ps rms
LVPECL output frequency combinations are 156.25
MHz unterminated, 2 × 125 MHz, 2 × 106.25 MHz
12 kHz to 35 MHz (Max)
0.66 (off
only)
ps rms
LVPECL output frequency combinations are 156.25
MHz unterminated, 2 × 125 MHz, 2 × 106.25 MHz
CMOS CLOCK OUTPUT JITTER
Typical (typ) is given for V
S
= 3.3 V, T
A
= 25°C, unless otherwise noted.
Table 4.
Jitter Integration Bandwidth 25 MHz 33.3 MHz Unit Test Conditions/Comments
12 kHz to 5 MHz (Typ) 0.78 0.41 ps rms
12 kHz to 5 MHz (Max) 1.1 N/A ps rms
200 kHz to 5 MHz (Typ) 0.76 0.52 ps rms
200 kHz to 5 MHz (Max) 1.0 N/A ps rms
REFERENCE INPUT
Typical (typ) is given for V
S
= 3.3 V ± 10%, T
A
= 25°C, unless otherwise noted. Minimum (min) and maximum (max) values are given
over full V
S
and T
A
(−40°C to +85°C) variation.
Table 5.
Parameter Min Typ Max Unit Test Conditions/Comments
CLOCK INPUT (REFCLK)
Input Frequency 25 MHz
Input High Voltage 2.0 V
Input Low Voltage 0.8 V
Input Current −1.0 +1.0 μA
Input Capacitance 2 pF