CY7B9911V

3.3 V RoboClock+™

Document Number: 38-07408 Rev. *F

Page 3 of 17

Pin Configuration

Pin Definitions

Signal Name

IO

Description

REF

I

Reference frequency input. This input supplies the frequency and timing against which all functional

variations are measured.

FB

I

PLL feedback input (typically connected to one of the eight outputs).

FS

I

Three level frequency range select. See Table 1.

1F0, 1F1

I

Three level function select inputs for output pair 1 (1Q0, 1Q1). See Table 2.

2F0, 2F1

I

Three level function select inputs for output pair 2 (2Q0, 2Q1). See Table 2.

3F0, 3F1

I

Three level function select inputs for output pair 3 (3Q0, 3Q1). See Table 2.

4F0, 4F1

I

Three level function select inputs for output pair 4 (4Q0, 4Q1). See Table 2.

TEST

I

Three level select. See “Test Mode” on page 5 under the “Block Diagram Description” on page 4.

1Q0, 1Q1

O

Output pair 1. See Table 2.

2Q0, 2Q1

O

Output pair 2. See Table 2.

3Q0, 3Q1

O

Output pair 3. See Table 2.

4Q0, 4Q1

O

Output pair 4. See Table 2.

PWR

Power supply for output drivers.

PWR

Power supply for internal circuitry.

GND

PWR

Ground.

1

2

3

432

31 30

17

16

15

14

18 19

20

5

6

7

8

9

10

11

12

13

29

28

27

26

25

24

23

22

21

2F0

GND

1F1

1F0

1Q0

1Q1

GND

GND

3F1

4F0

4F1

4Q1

4Q0

GND

GND

PLCC

CY7B9911V

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