SAA4977H 倍场频处理电路CONTENTS1 FEATURES2 GENERAL DEs criptION3 QUICK REFERENCE DATA4 ORDERING INFORMATION5 BLOCK DIAGRAM6 PINNING INFORMATION6.1 Pinning6.2 Pin des cription7 FUNCTIONAL DEs criptION7.1 Analog-to-digital conversion7.2 Digital processing at 1fH level7.3 Digital processing at 2fH level7.4 Digital-to-analog conversion7.5 Microprocessor7.6 Memory controller7.7 Line locked clock generation7.8 Clock and sync interfacing7.9 4 : 1 : 1 I/O interfacing7.10 Test mode operation7.11 I2C-bus control registers8 LIMITING valueS9 THERMAL CHARACTERISTICS10 CHARACTERISTICS11 APPLICATION12 PACKAGE OUTLINE13 SOLDERING13.1 Introduction13.2 Reflow soldering13.3 Wave soldering13.4 Repairing soldered joints14 DEFINITIONS15 LIFE SUPPORT APPLICATIONS16 PURCHASE OF PHILIPS I2C COMPONENTS