User Manual

2 DS671F2
CS4385
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 CHARACTE RISTIC S - CONTRO L PORT - I ²C FORMAT ........... ... .... ... ... ... ... .... ... ... ... ... 17
SWITCHING CHARACTE RISTIC S - CONTRO L 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
4.3.3 OLM #3 ........... ................ .... ... ... ................ ... .... ................ ... ... ... ................. ... ... ...................... 25
4.3.4 OLM #4 ........... ................ .... ... ... ................ ... .... ................ ... ... ... ................. ... ... ...................... 25
4.3.5 TDM ................ ... .... ................ ... ... ... ................. ... ... ................ ... .... ... ................ ... ................... 26
4.4 Oversampling Modes ...................................................................................................................... 26
4.5 Interpolation Filter ........................................................................................................................... 26
4.6 De-Emphasis .................................................................................................................................. 27
4.7 ATAPI Specification ........................................................................................................................ 27
4.8 Direct Stream Digital (DSD) Mode .................................................................................................. 28
4.9 Grounding and Power Supply Arrangements . ... ................ .... ... ... ................ ... .... ................ ... ... ... ... 29
4.9.1 Capacitor Placement ............................................................................................................. 29
4.10 Analog Output and Filtering .......................................................................................................... 29
4.11 The MUTEC Outputs .................................................................................................................... 30
4.12 Recommended Power-Up Sequence ........................................................................................... 31
4.12.1 Hardware Mode ................................................................................................................... 31
4.12.2 Software Mode .................................................................................................................... 32
4.13 Recommended Procedure for Switching Operational Modes ....................................................... 32
4.14 Control Port Interface ................................................................................................................... 32
4.14.1 MAP Auto Increment . ... ....................................................................................................... 32
4.14.2 I²C Mode .......... .... ... ................ ... ... ................. ... ... ... ................ .... ... ................ ... ... ................ 32
4.14.2.1 I²C Write ......... ... .... ................ ... ... ................ .... ... ... ................ ... .... ................ ... ......... 33
4.14.2.2 I²C Read ........ ... .... ................ ... ... ................ .... ... ... ................ ... .... ................ ... ... ...... 33
4.14.3 SPI Mode ............................................................................................................................. 34
4.14.3.1 SPI Write ........ ... .... ................ ... ... ................ .... ... ... ................ ... .... ................ ... ......... 34
4.15 Memory Address Pointer (MAP) .................................................................................................. 34
4.15.1 INCR (Auto Map Increment Enable) . ... ...... ....... ...... ....... ...... ....... ...... ....... ... ...... ....... ...... ...... 34
4.15.2 MAP4-0 (Memory Address Pointer) . ... ... ... ................. ... ... ................ ... .... ... ................ ... ... ... 34
5. REGISTER QUICK REFERENCE ....................................................................................................... 35
6. REGISTER DESCRIPTION .................................................................................................................. 37
6.1 Chip Revision (address 01h) ......................................................................................................... 37
6.1.1 Part Number ID (PART) [Read Only] .................................................................................... 37