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TDA7421N Datasheet(PDF) 27 Page - STMicroelectronics

Part # TDA7421N
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

TDA7421N Datasheet(HTML) 27 Page - STMicroelectronics

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TDA7421N
6.6 LOCK DETECTOR & PLL MODE CONTROL
6.7 IF COUNTER REFERENCE CONTROL 1 (LSB)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
0
PLL standby mode
0
1
PLL AM
1
0
not used
1
1
PLL FM mode
0
0
PD phase difference threshold 10ns
0
1
PD phase difference threshold 20ns
1
0
PD phase difference threshold 30ns
1
1
PD phase difference threshold 40ns
0
0
Not used in application mode
0
1
Activation delay = 4 · fref
1
0
Activation delay = 6 · fref
1
1
Activation delay = 8 · fref
0
No lock detector controlled chargepump
1
Lock detector controlled chargepump
LDENA
D3
D2
D1
D0
PM1
PM0
Bit name
Subaddress = 05H
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
000
00
LSB = 0
0
0
0
000
01
LSB = 1
0
0
0
000
10
LSB = 2
all combinations allowed
1
1
1
1
1
1
0
0
LSB = 252
1
1
1
1
1
1
0
1
LSB = 253
1
1
1
1
1
1
1
0
LSB = 254
1
1
1
1
1
1
1
1
LSB = 255
IRC7
IRC6
IRC5
IRC4
IRC3
IRC2
IRC1
IRC0
Bit name Subaddress = 06H



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