ST5080D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST5080D Datasheet PDF : 32 Pages
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Table 9: Control Register CR7 Functions
7654
Tone gain
0000
0001
0010
0011
0100
0101
0110
0111
1 XX 0
1 XX 1
3210
Function
F1 F2 SN DE
Attenuation
f1 Vpp
....0 dB *
-3 dB
-6 dB
- 9 dB
-12 dB
-15 dB
-18 dB
-21 dB
-24 dB
-27 dB
...2.4 (1)
1.70
1.20
0.85
0.60
0.43
0.30
0.21
0.15
0.10
00
01
10
11
f1 and f2 muted
f2 selected
f1 selected
f1 and f2 in summed mode
0
Squarewave signal selected
1
Sinewave signal selected
0 Normal operation
1 Tone / Ring Generator connected to
Transmit path
*:
state at power on initialization
(1):
value provided if f1 or f2 is selected alone.
if f1 and f2 are selected in the summed mode, f1=1.34 Vpp while f2=1.06 Vpp.
Output generator is 2.4 Vpp
X
reserved: write 0
ST5080A
f2 Vpp
....1.9 (1)
1.34
0.95
0.67
0.47
0.34
0.24
0.17
0.12
0.08
*
*
*
Table 10: Control Register CR8 Functions
76543210
f17 f16 f15 f14 f13 f12 f11 f10
Function
msb
lsb Binary equivalent of the decimal number used to calculate f1
Table 11: Control Register CR9 Functions
76543210
f27 f26 f25 f24 f23 f22 f21 f20
Function
msb
lsb Binary equivalent of the decimal number used to calculate f2
17/32
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