tda7421n STMicroelectronics, tda7421n Datasheet - Page 24

• Manufacturer Part Number: tda7421n
• Description: Am/fm Tuner For Car Radio And Hi-fi Applications
• Manufacturer: STMicroelectronics

TDA7421N
5.9 TUNER SUBADDRESS
5.10 PLL SUBADDRESS
T1, T2, T3 are used for testing the PLL, in application mode they have to be "0".
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MSB
MSB
T3
X
0
T2
X
0
T1
X
0
0
1
0
1
I
I
A3
A3
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
1
A2
A2
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
A1
A1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
0
0
1
1
0
0
LSB
LSB
A0
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
STATUS
FM STOP STATION/FM IF AGC
FM SMETER SLIDER/ AM IF2 AMP
AM AGC1/AM STOP STATION
IFT1/IFT2
FRONT END ADJUSTMENT
FM DEMOD ADJUSTMENT
FM AUDIO MUTE GAIN/FM IF BUFFERS/
FM SOFT MUTE
FM HOLE DETECTOR/FM DETUNING
TUNER TESTING
Page mode disabled
Page mode enabled
must be "0”
Charge pump control
PLL counter 1 (LSB)
PLL counter 2 (MSB)
PLL reference counter 1 (LSB)
PLL reference counter 2 (MSB)
PLL lockdetector control and PLL mode
select
IFC reference counter 1 (LSB)
IFC reference counter 2 (MSB) and IFC
mode select
IF counter control 1
IF counter control 2
Page mode disabled
Page mode enabled
FUNCTION
FUNCTION