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PCM1774 Scheda tecnica(PDF) 28 Page - Texas Instruments

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Il numero della parte PCM1774
Spiegazioni elettronici  16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs
PDF  49 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

PCM1774 Scheda tecnica(HTML) 28 Page - Texas Instruments

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PCM1774
SLAS551 – JULY 2007
Register 74
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 74
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
RSV
RSV
HPS1
HPS0
RSV
PCOM
IDX[6:0]: 100 1010b (4Ah): Register 74
HPS[1:0]: Line or Headphone Output Configuration
Default value: 00
HPOL/LOL and HPOR/LOR can be configured selected as follows.
HPS[1:0]
Line or Headphone Output Configuration
0 0
Stereo output (default)
0 1
Single monaural output
1 0
Differential monaural output
1 1
Reserved
PCOM: Power Up/Down Control for VCOM
Default value: 0
This bit is used to control power up/down for VCOM.
PCOM = 0
Power down (default)
PCOM = 1
Power up
Register 75
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 75
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
RSV
RSV
SDHR
SDHL
RSV
RSV
IDX[6:0]: 100 1011b (4Bh): Register 75
SDHR: Short Protection Status for HPR (R-Channel Headphone)
SDHL: Short Protection Status for HPL (L-Channel Headphone)
Default value: 0
Short-circuit protection can be disabled if this function is not needed in an application.
SDHR, SDSL = 0
Enabled (default)
SDHR, SDHL = 1
Disabled
Register 77
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 77
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
RSV
RSV
STHR
STHL
RSV
RSV
IDX[6:0]: 100 1101b (4Dh): Register 77
STHR: Short Protection Status for HPR (R-Channel Headphone)
STHL: Short Protection Status for HPL (L-Channel Headphone)
These bits can be used to read short protection status through the I2C interface.
STHR, STHL = 0
Detect short circuit
STHR, STHL = 1
Not detect short circuit
28
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