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TDA7421 Datasheet(PDF) 22 Page - STMicroelectronics

Part # TDA7421
Description  AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
PDF  38 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7421 Datasheet(HTML) 22 Page - STMicroelectronics

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PLL COUNTER 2 (MSB)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0000
000
0
MSB = 0
0000
000
1
MSB = 256
0000
001
0
MSB = 512
all combinations allowed
• • •
1111
110
0
MSB = 64768
1111
110
1
MSB = 65024
1111
111
0
MSB = 65280
1111
111
1
MSB = 65536
PC15
PC14
PC13
PC12
PC11
PC10
PC9
PC8
Bit name
Subddress = 02H
Swallow mode: fvco/fsyn = LSB + MSB + 32
PLL REFERENCE COUNTER 1 (LSB)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0000
000
0
LSB = 0
0000
000
1
LSB = 1
0000
001
0
LSB = 2
all combinations allowed
• • •
1111
110
0
LSB = 252
1111
110
1
LSB = 253
1111
111
0
LSB = 254
1111
111
1
LSB = 255
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
Bit name
Subaddress =03H
PLL REFERENCE COUNTER 2 (MSB)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0000
000
0
MSB = 0
0000
000
1
MSB = 256
0000
001
0
MSB = 512
all combinations allowed
• • •
1111
110
0
MSB = 64768
1111
110
1
MSB = 65024
1111
111
0
MSB = 65280
1111
111
1
MSB = 65536
RC15
RC14
RC13
RC12
RC11
RC10
RC9
RC8
Bit name
Subddress = 04H
fOSC/fREF = LSB + MSB + 1
TDA7421
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