S5H1420

[Channel Lab] S5H1420 [Channel Decoder for DVB-S/DSS] DATA SHEET Samsung Electronics Co, Ltd. 10 Jan. 2004 (Version 4.5.1) Note: This documentation is preliminary and is subject to change. Samsung Electronics Co, Ltd. reserves the right to do any kind of modification in this data sheet regarding hardware or software implementations without notice. Samsung Electronics Co, Ltd. Proprietary Information -1- S5H1420 DBS Channel Decoder for DVB-S/DSS TABLE OF CONTENTS page 1. INTRODUCTION...…………………………………………………………………………………… 3 1.1 Overview ………………………………………………………………...………………….………….3 1.2 Features…………………………………………………………………………………………………..3 1.3 Applications………………………………………………………………………………………………3 1.4 Ordering Information………………………………………………………………………………………3 1.5 Functional bock diagram ……………………………………………………………………………….4 2 . IN INFORMATION...…………………………………………………………………………………… 4 2.1 Pin assignment……………………………………………………………………………………………4 2.2 Pin description……………………………………………………………………………………………5 3. FUNCTIONAL DESCRIPTION ...……………………………………………………………………………6 3.1 Signal processing ……………………………………………………………………………………...6 3.1.1 I & Q inputs ……………………………………………………………………………………6 3.1.2 PRE – AGC…………………………………………………………………………………………6 3.1.3 Root raised cosine and rate conversion filter …………………………………………………6 3.1.3 Offset cancellation ...……………………………………………………………………………….6 3.1.4 POST – AGC ........…………………………………………………………………………………6 3.2 Timing recovery.………………………………………………………………………………………..6 3.2.1 Timing control…………………………………………………………………...