PCM1774 datasheet(37/49 Pages) TI

номер детали	PCM1774

подробное описание детали	16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs

PDF	49 Pages

Scroll/Zoom	100%

производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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PCM1774

SLAS551 – JULY 2007

B15

B14

B13

B12

B11

B10

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

LPAE

RSV

LGA4

LGA3

LGA2

LGA1

LGA0

IDX[6:0]: 101 1100b (5Ch): Register 92

LPAE: Gain Adjustment for Bass Boost Gain Control

Default value: 0

A gain setting for bass boost may cause digital data saturation, depending on the input data level. Where this

could occur, LPAE can be used to set the same attenuation level as the bass boost gain level for the digital

input data.

LPAE = 0

Disable (default)

LPAE = 1

Enable

LGA[4:0]: Bass Boost Gain Control

Default value: 0 0000

These bits are used to set the bass boost gain level for the digital data. The detailed characteristics are shown in

the Typical Performance Curves.

LGA[4:0]

TONE CONTROL GAIN (BASS)

LGA[4:0]

TONE CONTROL GAIN (BASS)

0 0000

0 dB (default)

0 1111

0 dB

0 0011

12 dB

1 0000

–1 dB

0 0100

11 dB

1 0001

–2 dB

0 0101

10 dB

1 0010

–3 dB

0 0110

9 dB

1 0011

–4 dB

0 0111

8 dB

1 0100

–5 dB

0 1000

7 dB

1 0101

–6 dB

0 1001

6 dB

1 0110

–7 dB

0 1010

5 dB

1 0111

–8 dB

0 1011

4 dB

1 1000

–9 dB

0 1100

3 dB

1 1001

–10 dB

0 1101

2 dB

1 1010

–11 dB

0 1110

1 dB

1 1011

–12 dB

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