REVISION J 05/25/16

11

12-OUTPUT DB1200ZL

9ZXL1231 DATASHEET

Clock Periods–Differential Outputs with Spread Spectrum Disabled

Clock Periods–Differential Outputs with Spread Spectrum Enabled

1 Clock

1us

0.1s

0.1s

0.1s

1us

1 Clock

-c2c jitter

AbsPer

Min

-SSC

Short-Term

Average

Min

- ppm

Long-Term

Average

Min

0 ppm

Period

Nominal

+ ppm

Long-Term

Average

Max

+SSC

Short-Term

Average

Max

+c2c jitter

AbsPer

Max

100.00

9.94900

9.99900

10.00000

10.00100

10.05100

ns

133.33

7.44925

7.49925

7.50000

7.50075

7.55075

ns

DIF

Measurement Window

Units

SSC OFF

Center

Freq.

MHz

1 Clock

1us

0.1s

0.1s

0.1s

1us

1 Clock

-c2c jitter

AbsPer

Min

-SSC

Short-Term

Average

Min

- ppm

Long-Term

Average

Min

0 ppm

Period

Nominal

+ ppm

Long-Term

Average

Max

+SSC

Short-Term

Average

Max

+c2c jitter

AbsPer

Max

99.75

9.94906

9.99906

10.02406

10.02506

10.02607

10.05107

10.10107

ns

1,2,3

133.00

7.44930

7.49930

7.51805

7.51880

7.51955

7.53830

7.58830

ns

1,2,4

Notes:

accuracy requirements (+/-100ppm). The 9ZXL1231 itself does not contribute to ppm error.

DIF

Measurement Window

Units

SSC ON

Center

Freq.

MHz

Notes

Differential Output Terminations

DIF Zo (Ω)Rs (Ω)

100

33

85

27

85ohm Differential Zo

Low-Power

HCSL-

Compatible

Output buffer

9ZXL Differential Test Loads

Rs

Rs

2pF

2pF

10 inches