CS5371A データシートの表示（PDF） - Cirrus Logic

部品番号

コンポーネント説明

メーカー

CS5371A

Low-power, High-performance ΔΣ Modulators

Cirrus Logic 

CS5371A CS5372A

TABLE OF CONTENTS

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

SPECIFIED OPERATING CONDITIONS ................................................................................. 4

ABSOLUTE MAXIMUM RATINGS ........................................................................................... 4

TEMPERATURE CONDITIONS ............................................................................................... 5

ANALOG INPUT CHARACTERISTICS ................................................................................... 5

PERFORMANCE CHARACTERISTICS ................................................................................... 7

PERFORMANCE PLOTS ......................................................................................................... 9

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

POWER SUPPLY CHARACTERISTICS ................................................................................ 13

2. SYSTEM DIAGRAM ............................................................................................................ 14

3. MODULATOR OPERATION ................................................................................................... 15

3.1 One’s Density ................................................................................................................... 15

3.2 Decimated 24-bit Output .................................................................................................. 16

3.3 Synchronization ............................................................................................................... 16

3.4 Idle Tones ........................................................................................................................ 16

3.5 Stability ............................................................................................................................ 16

4. ANALOG SIGNALS ................................................................................................................ 17

4.1 INR±, INF± Modulator Inputs ........................................................................................... 17

4.2 Input Impedance .............................................................................................................. 17

4.3 Anti-alias Filter ................................................................................................................. 18

4.4 Analog Differential Signals ............................................................................................... 18

5. DIGITAL SIGNALS ................................................................................................................. 19

5.1 MCLK Connection ............................................................................................................ 19

5.2 MSYNC Connection ......................................................................................................... 19

5.3 MDATA Connection ......................................................................................................... 20

5.4 MFLAG Connection ......................................................................................................... 20

5.5 OFST Connection ............................................................................................................ 20

6. POWER MODES ..................................................................................................................... 21

6.1 Normal Operation ............................................................................................................. 21

6.2 Power Down, MCLK Enabled .......................................................................................... 21

6.3 Power Down, MCLK Disabled .......................................................................................... 21

7. VOLTAGE REFERENCE ........................................................................................................ 22

7.1 VREF Power Supply ........................................................................................................ 22

7.2 VREF RC Filter ................................................................................................................ 22

7.3 VREF PCB Routing .......................................................................................................... 22

7.4 VREF Input Impedance .................................................................................................... 22

7.5 VREF Accuracy ................................................................................................................ 23

8. POWER SUPPLIES ................................................................................................................ 24

8.1 Power Supply Bypassing ................................................................................................. 24

8.2 PCB Layers and Routing ................................................................................................. 24

8.3 Power Supply Rejection ................................................................................................... 24

8.4 SCR Latch-up Considerations ......................................................................................... 25

8.5 DC-DC Converters ........................................................................................................... 25

9. PIN DESCRIPTION - CS5371A ............................................................................................. 26

10. PIN DESCRIPTION - CS5372A ........................................................................................... 28

11. PACKAGE DIMENSIONS ..................................................................................................... 30

12. ORDERING INFORMATION ................................................................................................ 31

13. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION .......................... 31

14. REVISION HISTORY ........................................................................................................... 32

2

DS748F2

Share Link: