SGTL5000XNAA3R2 Datasheet, PDF (43/68 Pages) Freescale Semiconductor, Inc – Low Power Stereo Codec with Headphone Amp

FUNCTIONAL DEVICE OPERATION
PROGRAMMING EXAMPLES
BITS
8
FIELD
RW
VCOAMP_POWERUP RW
7
VAG_POWERUP
RW
6
ADC_MONO
RW
5
REFTOP_POWERUP RW
4 HEADPHONE_POWER RW
UP
3
DAC_POWERUP
RW
2
CAPLESS_HEADPHO RW
NE_POWERUP
1
ADC_POWERUP
RW
0
LINEOUT_POWERUP RW
RESET
0x0
0x0
0x1
0x1
0x0
0x0
0x0
0x0
0x0
DEFINITION
Power up the PLL VCO amplifier.
0x0 = Power down
0x1 = Power up
Power up the VAG reference buffer. Setting this bit starts the power up ramp for the
headphone and LINEOUT. The headphone (and/or LINEOUT) powerup should be set
BEFORE clearing this bit. When this bit is cleared the power-down ramp is started. The
headphone (and/or LINEOUT) powerup should stay set until the VAG is fully ramped
down (200 to 400 ms after clearing this bit).
0x0 = Power down
0x1 = Power up
While ADC_POWERUP is set, this allows the ADC to be put into left only mono
operation for power savings. This mode is useful when only using the microphone
input.
0x0 = Mono (left only)
0x1 = Stereo
Power up the reference bias currents
0x0 = Power down
0x1 = Power up
This bit can be cleared when the part is a sleep state to minimize analog power.
Power up the headphone amplifiers
0x0 = Power down
0x1 = Power up
Power up the DACs
0x0 = Power down
0x1 = Power up
Power up the capless headphone mode
0x0 = Power down
0x1 = Power up
Power up the ADCs
0x0 = Power down
0x1 = Power up
Power up the LINEOUT amplifiers
0x0 = Power down
0x1 = Power up
Analog Integrated Circuit Device Data
Freescale Semiconductor
SGTL5000
43