STW5094A Datasheet, PDF (19/51 Pages) STMicroelectronics – 18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

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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