AK8157A Datasheet, PDF (2/26 Pages) Asahi Kasei Microsystems – Multiclock Generator for Premium Audio Device

[AK8157A]
3. Table of Contents
1. General Description ............................................................................................................................ 1
2. Features .............................................................................................................................................. 1
3. Table of Contents................................................................................................................................ 2
4. Block Diagram ..................................................................................................................................... 3
5. Pin Configurations and Functions ....................................................................................................... 4
■ Pin Layout .......................................................................................................................................... 4
■ Pin Functions...................................................................................................................................... 4
■ Handling of Unused Pin ..................................................................................................................... 5
6. Absolute Maximum Ratings ................................................................................................................ 6
7. Recommended Operating Conditions................................................................................................. 6
8. Electrical Characteristics..................................................................................................................... 7
■ AC Characteristics ............................................................................................................................. 7
■ Power Supply Current ........................................................................................................................ 8
■ DC Characteristics ............................................................................................................................. 8
■ Switching Characteristics ................................................................................................................... 9
■ Timing Diagram ................................................................................................................................ 10
9. Functional Descriptions..................................................................................................................... 11
■ System Clock Timing ....................................................................................................................... 11
■ System Reset ................................................................................................................................... 11
■ Power-up Timing .............................................................................................................................. 12
■ Glitch-free Function.......................................................................................................................... 13
■ Frequency Configuration Change Sequence .................................................................................. 13
■ Power-down and Power-up Sequence by Internal Registers.......................................................... 14
■ Register Control Interface ................................................................................................................ 16
■ Register Map .................................................................................................................................... 20
■ Register Definitions .......................................................................................................................... 20
10. Recommended External Circuits................................................................................................... 22
11. Package......................................................................................................................................... 24
■ Outline Dimensions .......................................................................................................................... 24
■ Material & Lead finish....................................................................................................................... 24
■ Marking............................................................................................................................................. 25
12. Ordering Guide .............................................................................................................................. 25
■ Ordering Guide................................................................................................................................. 25
13. Revision History............................................................................................................................. 25
IMPORTANT NOTICE.............................................................................................................................. 26
015002776-E-00
-2-
2015/03