Si5321

12

Rev. 2.3

Wander/Jitter Transfer Peaking

< 3200 Hz

—

0.05

0.1

dB

Wander/Jitter at 3200 Hz Bandwidth

(BWSEL[1:0] = 00 and BWBOOST= 0)

Jitter Tolerance (see Figure 7)

f= 32 Hz

1000

—

—ns

f= 320Hz

100

—

—ns

f = 3200 Hz

10

—

—ns

CLKOUT RMS Jitter Generation

FEC[2:0] = 000

12 kHz to 20 MHz

—

0.9

1.1

ps

50 kHz to 80 MHz

—

0.3

0.4

ps

CLKOUT RMS Jitter Generation

FEC[2:0] = 001, 010, 100,101, 110, 111

12 kHz to 20 MHz

—

0.85

1.1

ps

50 kHz to 80 MHz

—

0.3

0.45

ps

CLKOUT Peak-Peak Jitter Generation

FEC[2:0] = 000

12 kHz to 20 MHz

—

7.1

10.0

ps

50 kHz to 80 MHz

—

3.2

5.0

ps

CLKOUT Peak-Peak Jitter Generation

FEC[2:0] = 001, 010, 100,101, 110, 111

12 kHz to 20 MHz

—

6.6

11.0

ps

50 kHz to 80 MHz

—

3.2

5.5

ps

Jitter Transfer Bandwidth (see Figure 6)

BW = 3200 Hz

—

3200

—Hz

Wander/Jitter Transfer Peaking

< 3200 Hz

—

0.05

0.1

dB

Wander/Jitter at 6400 Hz Bandwidth

(BWSEL[1:0] = 00 and BWBOOST = 1)

Jitter Tolerance (see Figure 7)

f = 64 Hz

500

—

—

ns

f= 640Hz

50

—

—

ns

f = 6400 Hz

5

—

—

ns

CLKOUT RMS Jitter Generation

FEC[2:0] = 000

12 kHz to 20 MHz

—

0.75

0.95

ps

50 kHz to 80 MHz

—

0.27

0.35

ps

CLKOUT Peak-Peak Jitter Generation

FEC[2:0] = 000

12 kHz to 20 MHz

—

6.1

10.0

ps

50 kHz to 80 MHz

—

3.1

5.0

ps

Jitter Transfer Bandwidth (see Figure 6)

BW = 6400 Hz

—

6400

—

Hz

Wander/Jitter Transfer Peaking

< 6400 Hz

—

0.05

0.1

dB

Table 4. AC Characteristics (PLL Performance Characteristics) (Continued)

Parameter

Symbol

Test Condition

Min

Typ

Max Unit

Notes:

1. Higher PLL bandwidth settings provide smaller clock output wander with temperature gradient.

2. For reliable device operation, temperature gradients should be limited to 10 °C/min.

3. Telcordia GR-1244-CORE requirements specify maximum phase transient slope during clock rearrangement in terms

of nanoseconds per millisecond. The equivalent ps/

µs unit is used here since the maximum phase transient magnitude

for the Si5321 (tPT_MTIE) never reaches one nanosecond.