ICS853S024

LOW SKEW, 1-TO-24 DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER

PRELIMINARY

LOW SKEW LVPECL FANOUT BUFFER

2

ICS853S024AY REV. A APRIL 30, 2008

Table 1. Pin Descriptions

NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.

Table 2. Pin Characteristics

Number

Name

Type

Description

1, 16, 18, 31, 33,

34, 50, 63, 64

Power

Power supply pins.

2, 15, 17, 32, 49

Power

Negative supply pins.

3, 4

Q0, nQ0

Output

Differential clock outputs. LVPECL interface levels.

5, 6

Q1, nQ1

Output

Differential clock outputs. LVPECL interface levels.

7, 8

Q2, nQ2

Output

Differential clock outputs. LVPECL interface levels.

9, 10

Q3, nQ3

Output

Differential clock outputs. LVPECL interface levels.

11, 12

Q4, nQ4

Output

Differential clock outputs. LVPECL interface levels.

13, 14

Q5, nQ5

Output

Differential clock outputs. LVPECL interface levels.

19, 20

Q6, nQ6

Output

Differential clock outputs. LVPECL interface levels.

21, 22

Q7, nQ7

Output

Differential clock outputs. LVPECL interface levels.

23, 24

Q8, nQ8

Output

Differential clock outputs. LVPECL interface levels.

25, 26

Q9, nQ9

Output

Differential clock outputs. LVPECL interface levels.

27, 28

Q10, nQ10

Output

Differential clock outputs. LVPECL interface levels.

29, 30

Q11, nQ11

Output

Differential clock outputs. LVPECL interface levels.

35, 36

Q12, nQ12

Output

Differential clock outputs. LVPECL interface levels.

37, 38

Q13, nQ13

Output

Differential clock outputs. LVPECL interface levels.

39, 40

Q14, nQ14

Output

Differential clock outputs. LVPECL interface levels.

41, 42

Q15, nQ15

Output

Differential clock outputs. LVPECL interface levels.

43, 44

Q16, nQ16

Output

Differential clock outputs. LVPECL interface levels.

45, 46

Q17, nQ17

Output

Differential clock outputs. LVPECL interface levels.

47

CLK

Input

Pulldown

Non-inverting differential clock input.

48

nCLK

Input

Pullup/

Pulldown

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Input Capacitance

4pF

Input Pullup Resistor

50

k

Ω

50

k

Ω