XE3005 Просмотр технического описания (PDF) - Unspecified

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XE3005

Low-Power Audio CODEC

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Data Sheet

XE3005/XE3006

Figure 11 shows the block diagram of the CODEC reset.

reset to analog and

digital circuitry of codec

Power

On

Reset

deldaeylay

counter

MCLK

XE3005/6

NRESET

low drive

buffer

Figure 11: Codec reset circuitry

2.2 Power-Down Functions

2.2.1 Software Power-Down

Register I allows for the selective power down of the ADC signal channel or the DAC signal channel through SPI

control. The wake-up time, after powering down the device is typically 200µs. The maximum standby current is

96µA, depending highly upon the Master clock (MCLK), see 5.3.5.2 Low Power Modes.

2.2.2 Hardware Power-Down

The device has no power-down pin. However, by holding down (0 V) the NRESET pin (resetting the device) as

well as the pins MCLK, BCLK and FSYNC, the power consumption will reach the standby current of typically

16µA. Use the standard procedure for power up (see start-up and initialization procedure) after a hardware power

down and apply your registers setup procedure.

11

D0212-116

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