Cirrus Logic CS4365 - Manual (Page 2)

2 DS670F2
CS4365
TABLE OF CONTENTS
1. PIN DESCRIPTION ................................................................................................................................ 6
2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8
RECOMMENDED OPERATING CONDITIONS ..................................................................................... 8
ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 8
DAC ANALOG CHARACTERISTICS - COMMERCIAL (-CQZ) ............................................................. 9
DAC ANALOG CHARACTERISTICS - AUTOMOTIVE (-DQZ) ............................................................ 10
POWER AND THERMAL CHARACTERISTICS .................................................................................. 11
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ...................................... 12
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE (CONTINUED) .............. 13
DSD COMBINED DIGITAL & ON-CHIP ANALOG FILTER RESPONSE ............................................. 13
DIGITAL CHARACTERISTICS ............................................................................................................. 14
SWITCHING CHARACTERISTICS - PCM ........................................................................................... 15
SWITCHING CHARACTERISTICS - DSD ........................................................................................... 16
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT .............................................. 17
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ............................................. 18
3. TYPICAL CONNECTION DIAGRAM .................................................................................................. 19
4. APPLICATIONS ................................................................................................................................... 21
4.1 Master Clock ................................................................................................................................... 21
4.2 Mode Select .................................................................................................................................... 22
4.3 Digital Interface Formats ................................................................................................................ 23
4.3.1 OLM #1 .................................................................................................................................. 24
4.3.2 OLM #2 .................................................................................................................................. 24
4.4 Oversampling Modes ...................................................................................................................... 24
4.5 Interpolation Filter ........................................................................................................................... 25
4.6 De-Emphasis .................................................................................................................................. 25
4.7 ATAPI Specification ........................................................................................................................ 26
4.8 Direct Stream Digital (DSD) Mode .................................................................................................. 26
4.9 Grounding and Power Supply Arrangements ................................................................................. 27
4.9.1 Capacitor Placement ............................................................................................................. 27
4.10 Analog Output and Filtering .......................................................................................................... 28
4.11 The MUTEC Outputs .................................................................................................................... 29
4.12 Recommended Power-Up Sequence ........................................................................................... 29
4.12.1 Hardware Mode ................................................................................................................... 29
4.12.2 Software Mode .................................................................................................................... 30
4.13 Recommended Procedure for Switching Operational Modes ....................................................... 30
4.14 Control Port Interface ................................................................................................................... 30
4.14.1 MAP Auto Increment ........................................................................................................... 30
4.14.2 I²C Mode .............................................................................................................................. 30
4.14.2.1 I²C Write ................................................................................................................... 31
4.14.2.2 I²C Read .................................................................................................................. 31
4.14.3 SPI Mode ............................................................................................................................. 32
4.14.3.1 SPI Write .................................................................................................................. 32
4.15 Memory Address Pointer (MAP) .................................................................................................. 32
4.15.1 INCR (Auto Map Increment Enable) .................................................................................... 32
4.15.2 MAP4-0 (Memory Address Pointer) .................................................................................... 32
5. REGISTER QUICK REFERENCE ....................................................................................................... 33
6. REGISTER DESCRIPTION .................................................................................................................. 34
6.1 Chip Revision (address 01h) ......................................................................................................... 34
6.1.1 Part Number ID (PART) [Read Only] .................................................................................... 34
6.2 Mode Control 1 (address 02h) ........................................................................................................ 34
6.2.1 Control Port Enable (CPEN) .................................................................................................. 34
6.2.2 Freeze Controls (FREEZE) ................................................................................................... 34