PCS3P2189A

http://onsemi.com

2

Figure 1. Block Diagram

VSS

VDD

PLL

Loop

Filter

VCO

ModOUT

Output

Divider

S0

S1 SSON

Phase

Detector

Modulation

Frequency

Divider

Feedback

Divider

Crystal

Oscillator

XOUT

CLKIN / XIN

Table 1. ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Rating

Unit

Supply Voltage pin with respect to Ground

−0.5 to +4.6

V

Input Voltage pin with respect to Ground

VSS−0.5 to VDD+0.5

V

Output Voltage pin with respect to Ground

VSS−0.5 to VDD+0.5

V

Storage temperature

−55 to +125

°C

Max. Soldering Temperature (10 sec)

260

°C

Junction Temperature

150

°C

Static Discharge Voltage (As per JEDEC STD22− A114−B)

2

KV

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

Table 2. PIN DESCRIPTION

Pin#

Pin Name

Type

Description

1

CLKIN / XIN

I

Crystal connection or External reference Clock Input

2

XOUT

O

Crystal connection. If using an external reference, this pin must be left unconnected.

3

SSON

I

Modulation enables pin. When HIGH enables spread spectrum modulation.

Has an Internal pull up resistor

4

S1

I

Spread range select. Digital logic input used to select frequency deviation

(Refer Spread Deviation Table). This pin has an internal pull−up resistor.

5

S0

O

Spread range select. Digital logic input used to select frequency deviation

(Refer Spread Deviation Table). This pin has an internal pull−up resistor.

6

VSS

P

Ground Connection. Connect to system ground.

7

ModOUT

O

Low EMI 4x clock output.

8

VDD

P

Power Supply Voltage Pin. Connect to +3.3 V.