CDB53L21 Cirrus Logic Inc, CDB53L21 Datasheet - Page 3

• Manufacturer Part Number: CDB53L21
• Description: BOARD EVAL FOR CS53L21 ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB53L21

• Number Of Adc's: 2
• Number Of Bits: 24
• Sampling Rate (per Second): 96k
• Data Interface: Serial
• Inputs Per Adc: 3 Single Ended
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 22.45mW @ 48kSPS, 2.5 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS53L21
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1550

DS700PP1
TABLE OF CONTENTS
1. PIN DESCRIPTIONS - SOFTWARE (HARDWARE) MODE .................................................................. 6
2. TYPICAL CONNECTION DIAGRAMS ................................................................................................... 9
3. CHARACTERISTIC AND SPECIFICATION TABLES ......................................................................... 11
4. APPLICATIONS ................................................................................................................................... 20
5. REGISTER QUICK REFERENCE ........................................................................................................ 37
6. REGISTER DESCRIPTION .................................................................................................................. 40
SPECIFIED OPERATING CONDITIONS ............................................................................................. 11
ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 11
ANALOG CHARACTERISTICS (COMMERCIAL - CNZ) .................................................................... 12
ANALOG CHARACTERISTICS (AUTOMOTIVE - DNZ) ..................................................................... 13
ADC DIGITAL FILTER CHARACTERISTICS ....................................................................................... 14
SWITCHING SPECIFICATIONS - SERIAL PORT ............................................................................... 14
SWITCHING SPECIFICATIONS - I²C CONTROL PORT ..................................................................... 16
SWITCHING CHARACTERISTICS - SPI CONTROL PORT ................................................................ 17
DC ELECTRICAL CHARACTERISTICS .............................................................................................. 18
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS ..................................................... 18
POWER CONSUMPTION .................................................................................................................... 19
1.1 Digital I/O Pin Characteristics ........................................................................................................... 8
4.1 Overview ......................................................................................................................................... 20
4.2 Hardware Mode .............................................................................................................................. 21
4.3 Analog Inputs ................................................................................................................................. 22
4.4 Signal Processing Engine ............................................................................................................... 28
4.5 Serial Port Clocking ........................................................................................................................ 29
4.6 Digital Interface Formats ................................................................................................................ 31
4.7 Initialization ..................................................................................................................................... 32
4.8 Recommended Power-Up Sequence ............................................................................................. 32
4.9 Recommended Power-Down Sequence ........................................................................................ 33
4.10 Software Mode ............................................................................................................................. 34
4.1.1 Architecture ........................................................................................................................... 20
4.1.2 Line & MIC Inputs .................................................................................................................. 20
4.1.3 Signal Processing Engine ..................................................................................................... 20
4.1.4 Device Control (Hardware or Software Mode) ...................................................................... 20
4.1.5 Power Management .............................................................................................................. 20
4.3.1 Digital Code, Offset & DC Measurement ............................................................................... 22
4.3.2 High-Pass Filter and DC Offset Calibration ........................................................................... 23
4.3.3 Digital Routing ....................................................................................................................... 23
4.3.4 Differential Inputs .................................................................................................................. 23
4.3.5 Analog Input Multiplexer ........................................................................................................ 25
4.3.6 MIC & PGA Gain ................................................................................................................... 25
4.3.7 Automatic Level Control (ALC) .............................................................................................. 26
4.3.8 Noise Gate ............................................................................................................................ 27
4.4.1 Volume Controls .................................................................................................................... 28
4.4.2 Mono Channel Mixer ............................................................................................................. 28
4.5.1 Slave ..................................................................................................................................... 30
4.5.2 Master ................................................................................................................................... 30
4.5.3 High-Impedance Digital Output ............................................................................................. 31
4.5.4 Quarter- and Half-Speed Mode ............................................................................................. 31
4.10.1 SPI Control .......................................................................................................................... 34
4.10.2 I²C Control ........................................................................................................................... 34
4.10.3 Memory Address Pointer (MAP) .......................................................................................... 36
4.3.4.1 External Passive Components ................................................................................... 23
4.10.3.1 Map Increment (INCR) ............................................................................................. 36
CS53L21
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