PCM1802

SLES023B – DECEMBER 2001 – REVISED MARCH 2002

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PRINCIPLES OF OPERATION

power-on reset sequence

The PCM1802 has an internal power-on reset circuit and initialization (reset) is performed automatically when

power-on reset timing and the digital output for power-on reset.

System Clock

2.6 V

2.2 V

1.8 V

Internal Reset

DOUT

Zero Data

Normal Data

Reset

VDD

Reset Removal

1024 System Clocks

4480 / fS

Figure 23. Internal Power-On Reset Timing

serial audio data interface

The PCM1802 interfaces with the audio system through BCK (pin 11), LRCK (pin 10), FSYNC (pin 9), and DOUT

(pin 12).