TDA7501TR STMICROELECTRONICS [STMicroelectronics], TDA7501TR Datasheet - Page 12

• Manufacturer Part Number: TDA7501TR
• Description: Line driver for digital car radio Signal processor (DSPLD)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Description of the input part
3.4
12/29
Transfer function of the AM/FM level inputs
In the TDA7501 two level shift stages convert a tuner level (DC) signal to a unipolar output
signal with respect to the Codec Interface reference, that is 1.65V.
The FM level input can be programmed to a signal range of either 0 to 5V (Lo range) which
is the default, or 0 to 6V (Hi range). The AM level input is fixed to the lower 0 to 5V input
range.
For the programming of the FM level input range see the programming section.
Figure 9.
AM/FM level inputs transfer function (DC)
Vout
2.65
2.30
2.15
1.90
1.65
(V)
0
1
LO RANGE
2
HI RANGE
3
4
D00AU1204
5 Vin(V)
TDA7501