TDA7501 Software specification for both modes
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Table 13. Mode select (subaddress 5)
MSB LSB
Function
D7 D6 D5 D4 D3 D2 D1 D0
0
0
1
1
0
1
0
1
AM-IF rectifier gain
18dB
15.5dB
12dB
6dB
0
0
1
1
0
1
0
1
AM-IF rectifier corner frequency
14KHz
18.5KHz
28KHz
56KHz
0
1
backkground tuner select (internal AM-
path)
FM-in (MPX1)
AM-in (MPX2)
0
1
Dual MPX mode
on (control through Tuner- - voltage)
off
0
0
1
1
0
1
0
1
forced Dual MPX mode
MPX1 (allows automatic selection)
MPX2 (overwrites automatic selection)
MPX1+ MPX2 (overwrites automatic
selection)
MPX1 (overwrites automatic selection)
Table 14. Configuration (subaddress 6)
MSB LSB
Function
D7 D6 D5 D4 D3 D2 D1 D0
0
1
output gain
0dB
+6dB
0
1
reference voltage setting for output
external reference / internal reference
(V33*1.25)
01
internal divider for output reference
voltage connected to VCC/2
disconnected
01
fast charge (switches at CD input)
open closed
01
Input level select (output
power)12dB6d0
Obsolete Product(s) - Obsolete Product(s)
