STW5094AD 查看數據表（PDF） - STMicroelectronics

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STW5094AD

18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

STMicroelectronics 

STw5094A

Control Register CR11 Functions (Address: 0x0B)

7

6

5

4

3

2

1

0

FMRA(4:0)

Function

XXX

0

0

0

0

0 FM Preamplifier (Right channel) +18 dB gain

0

0

0

0

1 FM Preamplifier (Right channel) +16 dB gain

-

-

-

-

- FM Preamplifier (Right channel) gain in 2 dB step

0

1

0

0

1 FM Preamplifier (Right channel) 0 dB gain

*

-

-

-

-

- FM Preamplifier (Right channel) gain in 2 dB step

1

0

0

1

1 FM Preamplifier (Right channel) -20 dB gain

*: state at power on initialization

X: reserved: write 0

Control Register CR12 Functions (Address: 0x0C)

7

6

5

4

TONEG(3:0)

0

0

0

0

0

0

0

1

-

-

-

-

1

0

1

1

3

2

1

0

Function

FSEL(1:0) SN DE

Tone gain is 0 dB

*

Tone gain is -3 dB

Tone gain in 3 dB step

Tone gain is -33 dB

00

f1 and f2 muted

*

01

f1 selected

10

f2 selected

11

f1 and f2 in summed mode

0

Squarewave signal selected

*

1

Sinewave signal selected

0 Tone ⁄ Ring Generator not connected to Transmit path *

1 Tone ⁄ Ring Generator connected to Transmit path

*: state at power on initialization

X: reserved write 0

Control Register CR13 Functions (Address: 0x0D)

7

6

5

4

3

2

1

0

F1(7:0)

Function

msb

lsb Binary equivalent of the decimal number used to calculate f1

See Table 1

Control Register CR14 Functions (Address: 0x0E)

7

6

5

4

3

2

1

0

F2(7:0)

Function

msb

lsb Binary equivalent of the decimal number used to calculate f2

See Table 1

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