NB2669ASNR2G datasheet(2/8 Pages) ONSEMI

Part #	NB2669ASNR2G

Description	Low Power, Reduced EMI Clock Synthesizer

PDF	8 Pages

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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2 / 8 page

NB2669A

http://onsemi.com

Figure 1. Block Diagram

ModOUT

Frequency

Divider

Feedback

Divider

Phase

Detector

Loop

Filter

CLKIN

Modulation

VDD

VCO

Output

Divider

PLL

VSS

Table 1. KEY SPECIFICATIONS

Description

Specification

Supply Voltages

VDD = 3.3 V / 2.5 V

Frequency Range

For 2.5 V Supply

For 3.3 V Supply

6 MHz < CLKIN < 12 MHz

6 MHz < CLKIN < 13 MHz

Cycle−to−Cycle Jitter

200 ps (maximum)

Output Duty Cycle

45/55% (worst case)

Modulation Rate Equation

FIN/256

Frequency Deviation

"1% @ 10 MHz

Figure 2. Pin Configuration

VDD

CLKIN

ModOUT

NB2669A

VSS

Table 2. PIN DESCRIPTION

Pin #

Pin Name

Type

Description

Powerdown control pin. Pull low to enable Powerdown mode. Connect to VDD if not used.

No connect.

CLKIN

External reference frequency input.

VDD

Power supply for the entire chip.

ModOUT

Spread spectrum clock output.

VSS

Ground connection.

NB2669ASNR2G Datasheet(PDF) 2 Page - ON Semiconductor

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