PCM1802DB datasheet(14/28 Pages) TI1

tên linh kiện	PCM1802DB

Giải thích chi tiết về linh kiện	SINGLE-ENDED ANALOG-INPUT 24-BIT, 96-kHz STEREO A/D CONVERTER

PDF	28 Pages

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nhà sản xuất	TI1 [Texas Instruments]

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Power-On Reset Sequence

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

T0014-05

Serial Audio Data Interface

PCM1802

SLES023C – DECEMBER 2001 – REVISED JANUARY 2005

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

the power supply (VDD) exceeds 2.2 V (typical). While VDD < 2.2 V (typical), and for 1024 system-clock counts

after VDD > 2.2 V (typical), the PCM1802 stays in the reset state and the digital output is forced to zero. The

digital output is valid after the reset state is released and the time of 4480/fS has passed. Figure 23 illustrates the

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

Figure 23. Internal Power-On Reset Timing

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

(pin 12).

PCM1802DB bảng dữ liệu(PDF) 14 Page - Texas Instruments