CS2000-OTP_09 Datasheet, PDF (8/30 Pages) Cirrus Logic – Fractional-N Clock Synthesizer & Clock Multiplier

CS2000-OTP
PLL PERFORMANCE PLOTS
Test Conditions (unless otherwise specified): VD = 3.3 V; T_A = 25 °C (Commercial Grade); C_L = 15 pF;
f_{CLK_OUT} = 12.288 MHz; f_{CLK_IN} = 12.288 MHz; Sample size = 10,000 points; Base Band Jitter (100 Hz to 40 kHz);
AuxOutSrc[1:0] = 11.
10,000
1,000
1 Hz Bandwidth
128 Hz Bandwidth
100
10
1
0.1
1
10
100
1,000
10,000
Input Jitter Frequency (Hz)
Figure 2. CLK_IN Sinusoidal Jitter Tolerance
Samples size = 2.5M points; Base Band Jitter (10Hz to 40kHz).
10
1 Hz Bandwidth
128 Hz Bandwidth
0
-10
-20
-30
-40
-50
-60
1
10
100
1000
10000
Input Jitter Frequency (Hz)
Figure 3. CLK_IN Sinusoidal Jitter Transfer
Samples size = 2.5M points; Base Band Jitter (10Hz to 40kHz).
1000
1 Hz Bandwidth
128 Hz Bandwidth
100
10
Unlock
1
Unlock
0.1
0.01
0.01
0.1
1
10
100
1000
Input Jitter Level (nsec)
Figure 4. CLK_IN Random Jitter Rejection and Tolerance
8
DS758F1