TDA7427 ST Microelectronics, TDA7427 Datasheet - Page 13

• Manufacturer Part Number: TDA7427
• Description: AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
• Manufacturer: ST Microelectronics

Data Byte Specification
CHARGE PUMP CONTROL
PLL COUNTER 1 (LSB)
LPIN1/2 CURRH
MSB
MSB
PC7
D7
D7
0
0
0
1
1
1
1
1
0
PC6
D6
D6
0
0
0
1
1
1
1
0
1
PC5
D5
D5
B1
0
0
0
1
1
1
1
0
0
1
1
PC4
D4
D4
0
0
0
1
1
1
1
B0
0
1
0
1
PC3
D3
0
0
0
1
1
1
1
D3
A3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
PC2
D2
0
0
0
1
1
1
1
D2
A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
PC1
D1
0
0
1
0
0
1
1
D1
A1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
LSB
PC0
D0
0
1
0
0
1
0
1
LSB
D0
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
LSB = 0
LSB = 1
LSB = 2
LSB = 252
LSB = 253
LSB = 254
LSB = 255
Bit name
Low current = 150 A
Select low Current
Select high Current
Select loop filter LP_FM
Select loop filter LP_AM
High current = 0mA
High current = 0.5mA
High current = 1.0mA
High current = 1.5mA
High current = 2.0mA
High current = 2.5mA
High current = 3.0mA
High current = 3.5mA
High current = 4.0mA
High current = 4.5mA
High current = 5.0mA
High current = 5.5mA
High current = 6.0mA
High current = 6.5mA
High current = 7.0mA
High current = 7.5mA
Low current = 0 A
Low current = 50 A
Low current = 100 A
FUNCTION
FUNCTION
Subaddress = 01H
Subaddress = 00H
TDA7427
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