NB2305A

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2

Figure 1. Block Diagram

REF

PLL

CLKOUT

CLK1

CLK2

CLK3

CLK4

Figure 2. Pin Configuration

1

2

3

4

8

7

6

5

REF

CLK2

CLK1

GND

CLKOUT

CLK4

CLK3

NB2305A

Table 1. PIN DESCRIPTION

Pin #

Pin Name

Description

1

REF (Note1)

Input reference frequency, 5 V tolerant input.

2

CLK2 (Note 2)

Buffered clock output.

3

CLK1 (Note 2)

Buffered clock output.

4

GND

Ground.

5

CLK3 (Note 2)

Buffered clock output.

6

3.3 V supply.

7

CLK4 (Note 2)

Buffered clock output.

8

CLKOUT (Note 2)

Buffered clock output, internal feedback on this pin.

1. Weak pulldown.

2. Weak pulldown on all outputs.