CS4385-CQZR Cirrus Logic Inc, CS4385-CQZR Datasheet - Page 2

• Manufacturer Part Number: CS4385-CQZR
• Description: IC,D/A CONVERTER,OCTAL,24-BIT,QFP,48PIN
• Manufacturer: Cirrus Logic Inc

Specifications of CS4385-CQZR

• Number Of Bits: 24
• Data Interface: Serial
• Number Of Converters: 8
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 520mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1154 - BOARD EVAL FOR CS4385 DAC
• Settling Time: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2
TABLE OF CONTENTS
1. PIN DESCRIPTION
2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8
3. TYPICAL CONNECTION DIAGRAM ................................................................................................... 19
4. APPLICATIONS ................................................................................................................................... 21
5. REGISTER QUICK REFERENCE ....................................................................................................... 35
6. REGISTER DESCRIPTION .................................................................................................................. 37
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
4.1 Master Clock ................................................................................................................................... 21
4.2 Mode Select .................................................................................................................................... 22
4.3 Digital Interface Formats ................................................................................................................ 23
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
4.10 Analog Output and Filtering .......................................................................................................... 29
4.11 The MUTEC Outputs .................................................................................................................... 30
4.12 Recommended Power-Up Sequence ........................................................................................... 31
4.13 Recommended Procedure for Switching Operational Modes ....................................................... 32
4.14 Control Port Interface ................................................................................................................... 32
4.15 Memory Address Pointer (MAP) .................................................................................................. 34
6.1 Chip Revision (address 01h) ......................................................................................................... 37
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
4.9.1 Capacitor Placement ............................................................................................................. 29
4.12.1 Hardware Mode ................................................................................................................... 31
4.12.2 Software Mode .................................................................................................................... 32
4.14.1 MAP Auto Increment ........................................................................................................... 32
4.14.2 I²C Mode .............................................................................................................................. 32
4.14.3 SPI Mode ............................................................................................................................. 34
4.15.1 INCR (Auto Map Increment Enable) .................................................................................... 34
4.15.2 MAP4-0 (Memory Address Pointer) .................................................................................... 34
6.1.1 Part Number ID (PART) [Read Only] .................................................................................... 37
4.14.2.1 I²C Write ................................................................................................................... 33
4.14.2.2 I²C Read .................................................................................................................. 33
4.14.3.1 SPI Write .................................................................................................................. 34
...................................................................................................................... 6
CS4385
DS671F2