CS4227

2

DS281PP2

TABLE OF CONTENTS

1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4

ANALOG CHARACTERISTICS ................................................................................................ 4

SWITCHING CHARACTERISTICS .......................................................................................... 6

SWITCHING CHARACTERISTICS - CONTROL PORT........................................................... 8

ABSOLUTE MAXIMUM RATINGS ......................................................................................... 10

RECOMMENDED OPERATING CONDITIONS ..................................................................... 10

DIGITAL CHARACTERISTICS ............................................................................................... 10

2. FUNCTIONAL DESCRIPTION ............................................................................................... 12

2.1 Overview .......................................................................................................................... 12

2.2 Analog Inputs ................................................................................................................... 12

2.2.1 Line Level Inputs ................................................................................................. 12

2.2.2 Adjustable Input Gain .......................................................................................... 13

2.2.3 High Pass Filter ................................................................................................... 13

2.3 Analog Outputs ................................................................................................................ 13

2.3.1 Line Level Outputs .............................................................................................. 13

2.3.2 Output Level Attenuator ...................................................................................... 14

2.4 Clock Generation ............................................................................................................. 14

2.4.1 Clock Source ....................................................................................................... 14

2.4.2 Master Clock Output ........................................................................................... 14

2.4.3 Synchronization ................................................................................................... 14

2.5 Digital Interfaces .............................................................................................................. 15

2.5.1 Audio DSP Serial Interface Signals ..................................................................... 15

2.5.2 Audio DSP Serial Interface Formats ................................................................... 15

2.5.3 Auxiliary Audio Port Signals ................................................................................ 15

2.5.4 Auxiliary Audio Port Formats ............................................................................... 15

2.6 Control Port Signals ......................................................................................................... 17

2.6.1 SPI Mode ............................................................................................................ 17

2.6.3 Control Port Bit Definitions .................................................................................. 18

2.7 Power-up/Reset/Power Down Mode ................................................................................ 18

2.8 DAC Calibration ............................................................................................................... 19

2.9 De-Emphasis ................................................................................................................... 19

2.10 Hold Function ................................................................................................................. 19

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