Rev A 6/30/15

2

LOW SKEW, 1-TO-10, DIFFERENTIAL-TO-LVPECL/ECL FANOUT

BUFFER

853S111AI DATA SHEET

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

1VCC

Power

Positive supply pin.

2

CLK_SEL

Input

Pulldown

Clock select input. When HIGH, selects PCLK1, nPCLK1 inputs. When LOW,

selects PCLK0, nPCLK0 inputs. LVPECL interface levels. Also accepts standard

LVCMOS/LVTTL input levels.

3

PCLK0

Input

Pulldown

Non-inverting differential LVPECL clock input.

4

nPCLK0

Input

Pullup/

Pulldown

Inverting differential LVPECL clock input. VCC/2 default when left floating.

5VBB

Output

Bias voltage to be connected for single-ended LVPECL input.

6

PCLK1

Input

Pulldown

Non-inverting differential LVPECL clock input.

7

nPCLK1

Input

Pullup/

Pulldown

Inverting differential LVPECL clock input. VCC/2 default when left floating.

8VEE

Power

Negative supply pin.

9, 16, 25, 32

VCCO

Power

Output supply pins.

10, 11

nQ9, Q9

Output

Differential output pair. LVPECL/ECL interface levels.

12, 13

nQ8, Q8

Output

Differential output pair. LVPECL/ECL interface levels.

14, 15

nQ7, Q7

Output

Differential output pair. LVPECL/ECL interface levels.

17, 18

nQ6, Q6

Output

Differential output pair. LVPECL/ECL interface levels.

19, 20

nQ5, Q5

Output

Differential output pair. LVPECL/ECL interface levels.

21, 22

nQ4, Q4

Output

Differential output pair. LVPECL/ECL interface levels.

23, 24

nQ3, Q3

Output

Differential output pair. LVPECL/ECL interface levels.

26, 27

nQ2, Q2

Output

Differential output pair. LVPECL/ECL interface levels.

28, 29

nQ1, Q1

Output

Differential output pair. LVPECL/ECL interface levels.

30, 31

nQ0, Q0

Output

Differential output pair. LVPECL/ECL interface levels.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

RPULLDOWN

Input Pulldown Resistor

75

k



RVCC/2

Pullup/Pulldown Resistors

50

k

