Datasheet

LTC6957-1/LTC6957-2/
LTC6957-3/LTC6957-4
7
6957f
For more information www.linear.com/LTC6957-1
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Digital Logic Inputs
V
IH
High Level SD or FILT Input Voltage
l
V
+
– 0.4 V
V
IL
Low Level SD or FILT Input Voltage
l
0.4 V
I
IN_DIG
Input Current SD or FILT Pins
l
0.1 ±10 µA
Additive Phase Noise and Jitter
f
IN
= 300MHz Sine Wave, 7dBm (FILTA = L, FILTB = L)
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
100kHz Offset
>1MHz Offset
Jitter (10Hz to 150MHz)
Jitter (12kHz to 20MHz)
–124
–134
–143.5
–151.3
–154
–154
183
67
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs
RMS
fs
RMS
f
IN
= 122.88MHz Sine Wave, 0dBm (FILTA = H, FILTB = L)
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
100kHz Offset
>1MHz Offset
Jitter (10Hz to 61.44MHz)
Jitter (12kHz to 20MHz)
–132.5
–142.5
–150.7
–156
–157
–157
203
116
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs
RMS
fs
RMS
f
IN
= 100MHz Sine Wave, 10dBm (FILTA = L, FILTB = L)
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
100kHz Offset
>1MHz Offset
Jitter (10Hz to 50MHz)
Jitter (12kHz to 20MHz)
–132
–142
–151
–157.5
–159.5
–159.5
169
107
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs
RMS
fs
RMS
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 3.3V,
SD1 = SD2 = 0.4V, FILTA = FILTB = 0.4V, R
LOAD
= 110Ω differential, unless otherwise specified. All voltages are with respect to ground.
LTC6957-2