SEC 1745
(02-02)

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

UNITED STATES

OMB APPROVAL

SECURITIES AND EXCHANGE COMMISSION

OMB Number:
3235-0145

Washington, D.C. 20549

Expires: December 31, 2005

SCHEDULE 13G

Estimated average burden hours per response. . 11

[     ]

Rule 13d-1(b)

[     ]

Rule 13d-1(c)

[  X  ]

Rule 13d-1(d)

CUSIP No.  826919 10 2

1.

Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only)
Navdeep S. Sooch

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

[     ]

(b)

[ X ]

3.

SEC Use Only

4.

Citizenship or Place of Organization
United States of America

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
5,697,228

6.

Shared Voting Power
419,500

7.

Sole Dispositive Power
5,697,228

8.

Shared Dispositive Power
419,500

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
6,116,728

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) 
[     ]

11.

Percent of Class Represented by Amount in Row (9)
12.5%

12.

Type of Reporting Person (See Instructions)
IN

Item 1.

(a)

Name of Issuer
Silicon Laboratories Inc.

(b)

Address of Issuer's Principal Executive Offices
4635 Boston Lane Austin, TX 78735

Item 2.

(a)

Name of Person Filing
Navdeep S. Sooch

(b)

Address of Principal Business Office or, if none, Residence
4635 Boston Lane, Austin, TX 78735

(c)

Citizenship
United States of America

(d)

Title of Class of Securities
Common Stock, par value $0.0001 per share

(e)

CUSIP Number
826919 10 2

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

[  ]

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)

[  ]

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)

[  ]

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)

[  ]

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).

(e)

[  ]

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f)

[  ]

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g)

[  ]

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

[  ]

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

[  ]

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

[  ]

Group, in accordance with §240.13d-1(b)(1)(ii)(J).

Not Applicable. This statement on Schedule 13G is not being filed pursuant to Rule 13d-1(b), 13d-2(b), or 13d-2(c).

Item 4.

Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)

Amount beneficially owned:   
As of December 31, 2002, Navdeep S. Sooch is the record owner of 5,593,395 shares of Common Stock and is deemed to beneficially own an additional 103,833 shares of Common Stock which he may acquire within 60 days of December 31, 2002 through the exercise of stock options and he may also be deemed to beneficially own an additional 419,500 shares of Common Stock of which 61,500 shares are held of record by the David T. Sooch Trust, 61,500 shares are held of record by the Kelly A. Sooch Trust, 61,500 shares are held of record by the Kevin S. Sooch Trust (collectively, the "Trusts") and 235,000 shares are held of record by Libra II, L.P. Mr. Sooch and his wife, Janet H. Sooch, serve as co-trustees of each of the Trusts and are the sole officers of the corporate general partner of Libra II, L.P., and in such capacities hold the shared power to vote and dispose of the shares owned by such Trusts and by Libra II, L.P. Therefore, Mr. Sooch may be deemed to own beneficially an aggregate of 6,116,728 shares of Common Stock as of December 31, 2002. Mr. Sooch disclaims beneficial ownership of all shares held by such Trusts and Libra II, L.P.

(b)

Percent of class:    12.5%

(c)

Number of shares as to which the person has:

(i)

Sole power to vote or to direct the vote    5,697,228

(ii)

Shared power to vote or to direct the vote    419,500

(iii)

Sole power to dispose or to direct the disposition of    5,697,228

(iv)

Shared power to dispose or to direct the disposition of    419,500

Item 5.

Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.  [    ]

Item 6.

Ownership of More than Five Percent on Behalf of Another Person

Not Applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

Not Applicable.

Item 8.

Identification and Classification of Members of the Group

Not Applicable.

Item 9.

Notice of Dissolution of Group

Not Applicable.

Item 10.

Certification

2/13/03

Date

/s/ NAVDEEP S. SOOCH

Signature

NAVDEEP S. SOOCH, CHAIRMAN AND C.E.O.

Name/Title