SY69952

6

Micrel

Symbol

Parameter

Min.

Typ.

Max.

Units

Condition

Reference Frequency

6.41

6.48

6.55

MHz

MODE = 0

19.24

19.44

19.64

MHZ

MODE = 1

19.5

19.3

19.1

ns

MODE = 0

6.50

6.43

6.36

ns

MODE = 1

48

—

52

%

(TCLK

±, RCLK±)

0.4

—

1.2

ns

5pf load, 50

——

1

µs

RIN transition density 25%

REFCLK Pulse Width High

3.3

——

ns

MODE = 0

10

——

ns

MODE = 1

REFCLK Pulse Width Low

3.3

——

ns

MODE = 0

10

——

ns

MODE = 1

Data Valid

3

——

ns

Prior to RCLK+ rising edge

Data Hold

1

——

ns

After RCLK+ rising edge

——

10

ns

(RIN to ROUT, TSER to TOUT)

AC ELECTRICAL CHARACTERISTICS

NOTES:

2. Tested initially and after any design or process changes that may affect these parameters.

3. The ECL switching threshold is the differential zero crossing (ie, the point where + and – signals cross).

TIMING WAVEFORMS

PRODUCT ORDERING CODE

Ordering

Package

Operating

Code

Type

Range

SY69952ZC

Z28-1

Commercial

RCLKP

RSERP/RSERN

TSERP/TSERN

RINP/RINN

ROUTP/ROUTN