TDA7511 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7511' PDF : 41 Pages View PDF
TDA7511
2.3 Data Byte Specification
Addr 0 Charge Pump Control
Table 4.
MSB
d7 d6 d5 d4 d3 d2
00
00
00
00
-
-
11
00
01
10
11
0
1
0
1
LSB
d1 d0
0 0 High current = 0mA
0 1 High current = 0.5mA
1 0 High current = 1mA
1 1 High current = 1.5mA
-
--
1 1 High current = 7.5mA
Low current = 0µA
Low current = 50µA
Low current = 100µA
Low current = 150µA
Select low current
Select high current
Select LPFM
Select LPAM
Function
Addr 1 PLL Lock Detector
Table 5.
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
0 0 Not used, have to be 0, d1 only for testing
0
Select FM mode
1
Select AM mode
00
PD phase difference threshold
10ns
01
20ns
10
30ns
11
40ns
00
Not valid
01
Activation delay
4 x 1/fREF
10
6 x 1/fREF
11
8 x 1/fREF
0
Lock detector doesn't control charge pump
1
Lock detector controls charge pump
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