PCM1609APT.B datasheet(30/47 Pages) TI2

номер детали	PCM1609APT.B

подробное описание детали	24-BIT 192-kHz SAMPLING 8-CHANNEL ENHANCED MULTILEVEL DELTA-SIGMA DIGITAL-TO-ANALOG CONVERTER

PDF	47 Pages

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производитель	TI2 [Texas Instruments]

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ZERO FLAG

ZERO-DETECT CONDITION

ZERO OUTPUT FLAGS

PCM1609A

SLES145B – AUGUST 2005 – REVISED MARCH 2008

Zero detection for each output channel is independent from the others. If the data for a given channel remains at

a 0 level for 1024 sample periods (or LRCK clock periods), a zero-detect condition exists for that channel.

Given that a zero-detect condition exists for one or more channels, the zero-flag pins for those channels are set

to a logic-1 state. Each channel, ZERO1 through ZERO6 (pins 1 through 6), ZERO7 (pin 30), and ZERO8 (pin

32), has zero-flag pins. In addition, all eight zero flags are logically ANDed together, and the result is provided at

the ZEROA pin (pin 48), which is set to a logic-1 state when all channels indicate a zero-detect condition. The

zero-flag pins can be used to operate external mute circuits. ZERO1 through ZERO6 can be used as status

indicators for a microcontroller, audio signal processor, or other digitally controlled function.

The active polarity of the zero-flag output can be inverted by setting to 1 the ZREV bit of control register 10. The

reset default is active-high output, or ZREV = 0.

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PCM1609APT.B датащи(PDF) 30 Page - Texas Instruments