M2020/21 Datasheet Rev 1.0

7 of 10

Revised 30Jul2004

M2020/21

Prod uct Data Sh eet

Integrated

Circuit

Systems, Inc.

PLL Simulator Tool Available

A free PC software utility is available on the ICS website

(www.icst.com). The M2000 Timing Modules PLL

Simulator is a downloadable application that simulates

PLL jitter and wander transfer characteristics. This

enables the user to set appropriate external loop

component values in a given application.

Refer to the M2020/21 product web page at

www.icst.com/products/summary/m2020-2021.htm

for additional product information.

for M2020-yz-622.0800 and M2021-yz-622.0800

Purpose

Device Configuration

Example External Component Values

Nominal Performance With These Values

(MHz)

F

VCSO

(MHz)

FIN_SEL

1:0

MRSEL

1:0

R loop

C loop

R post C post PLL Loop

Bandwidth

Damping

Factor

Passband

Frequency

Translation,

General

Usage

155.52

622.08 1 0

0 1

11.5

k

Ω

2.2

µF

32.4

k

Ω

470

p

1k

Hz

6.0

0.05

77.76

622.08 0 1

0 1

23.2

k

Ω

1.0

µF

32.4

k

Ω

470

p

1k

Hz

6.5

0.06

11.5

k

Ω

2.2

µF

32.4

k

Ω

470

p

1k

Hz

6.7

0.05

23.2

k

Ω

1.0

µF

32.4

k

Ω

470

p

1k

Hz

6.5

0.06

Jitter

Attenuation,

Narrow

Bandwidth

622.08

622.08 1 1

1 0

5.6

k

Ω

10

µF

68

k

Ω

470

p

500

Hz

6.3

0.05

77.76

622.08 0 1

0 1

8.2

k

Ω

10

µF

100

k

Ω

470

p

360

Hz

6.5

0.05

12.0

k

Ω

10

µF

100

k

Ω

470

p

260

Hz

6.7

0.05

8.2

k

Ω

10

µF

100

k

Ω

470

p

360

Hz

6.5

0.05

Table 7: Example Values for Loop Filter External Components

Note 1: K

and Passband Peaking. For PLL Simulator software, go to www.icst.com.

Note 2: M2021 only.

Note 3: M2020 only.

Symbol Parameter

Rating

Unit

V

I

Inputs

V

V

O

Outputs

V

V

CC

Power Supply Voltage

4.6

V

T

S

Storage Temperature

Table 8: Absolute Maximum Ratings

Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the

device. These ratings are stress specifications only. Functional operation of product at these conditions

or any conditions beyond those listed in Recommended Conditions of Operation, DC Characteristics, or

AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods

may affect product reliability.

Symbol Parameter

Min

Typ

Max

Unit

V

CC

Positive Supply Voltage

3.135

3.3

3.465

V

T

A

Ambient Operating Temperature

Commercial

0

Industrial

-40

Table 9: Recommended Conditions of Operation