Datasheet AK4377A (Asahi Kasei Microdevices) - 2

[AK4377A] 3. Table of Contents
1.
2.
3.
4.
5. General Description . 1
Features . 1
Table of Contents . 2
Block Diagram and Functions . 4
Pin Configurations and Functions . 5
■ Pin Configurations . 5
■ Pin Functions . 6
■ Handing of Unused Pins . 8
6.
Absolute Maximum Ratings . 9
7.
Recommended Operating Conditions . 9
8.
Electrical Characteristics. 10
■ Analog Characteristics . 10
■ PLL Characteristics . 13
■ Charge Pump & LDO Circuit Power-up Time . 13
■ Power Supply Current . 13
■ Power Consumptions for Each Operation Mode . 14
■ DAC Sharp Roll-Off Filter (fs = 44.1 kHz) . 15
■ DAC Sharp Roll-Off Filter (fs = 96 kHz) . 15
■ DAC Sharp Roll-Off Filter (fs = 192 kHz) . 16
■ DAC Slow Roll-Off Filter (fs = 44.1 kHz). 17
■ DAC Slow Roll-Off Filter (fs = 96 kHz) . 17
■ DAC Slow Roll-Off Filter (fs = 192 kHz). 18
■ DAC Short Delay Sharp Roll-Off Filter (fs = 44.1 kHz) . 19
■ DAC Short Delay Sharp Roll-Off Filter (fs = 96 kHz) . 19
■ DAC Short Delay Sharp Roll-Off Filter (fs = 192 kHz) . 20
■ DAC Short Delay Slow Roll-Off Filter (fs = 44.1 kHz). 21
■ DAC Short Delay Slow Roll-Off Filter (fs = 96 kHz). 21
■ DAC Short Delay Slow Roll-Off Filter (fs = 192 kHz). 22
■ DC Characteristics . 23
■ Switching Characteristics . 24
■ Timing Diagram (System Clock) . 26
■ Timing Diagram (Serial Audio I/F) . 27
■ Timing Diagram (I2C Interface) . 28
■ Timing Diagram (Reset) . 28
9.
Functional Description . 29
■ System Clock . 29
■ PLL . 33
■ Input Clock Select Function . 33
■ DACMCLK Generating Divider Setting . 36
■ Crystal Oscillator . 36
■ DAC Digital Filter. 37
■ Digital Mixing . 37
■ Digital Volume . 38
■ Headphone Amplifier Output (HPL/HPR pins) . 39
■ Charge Pump & LDO Circuits . 47
■ Serial Audio Interface . 48
■ Power-up & Operation Mode . 49
■ Serial Control Interface (I2C-bus) . 50
■ Control Sequence . 54
■ Register Map . 56
018001092-E-00 2018/02
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