TDA7540B Datasheet, PDF (43/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

TDA7540B
Software specification
Table 11. Subaddress
MSB
LSB
I A5 A4 A3 A2 A1 A0
0 0 0 0 0 0 Charge pump control
-
-
-
-
-
--
1 0 0 0 0 0 STD9
-
-
-
-
-
--
1 0 0 1 1 1 FMDEMSB
0
Page mode “OFF”
1
Page mode enable
Function
5.2.1 Data Byte Specification
Table 12. Addr 0 Charge Pump Control
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 0 0 0 High current = 0mA
0 0 0 1 High current = 0.5mA
0 0 1 0 High current = 1mA
0 0 1 1 High current = 1.5mA
-
-
-
--
1 1 1 1 High current = 7.5mA
00
Low current = 0µA
01
Low current = 50µA
10
Low current = 100µA
11
Low current = 150µA
0
Select low current
1
Select high current
0
ISS time constant at PIN 27 available, FMSEEK “OFF”
1
ISS time constant at PIN 28 available, FMSEEK “ON”
Table 13. Addr 1 PLL Counter 1 (LSB)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
0 0 0 0 0 0 0 0 LSB = 0
0 0 0 0 0 0 0 1 LSB = 1
0 0 0 0 0 0 1 0 LSB = 2
Function
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