TDA6650ATT Datasheet, PDF (46/54 Pages) NXP Semiconductors – 5 V mixer/oscillator and low noise PLL synthesizer for hybrid terrestrial tuner (digital and analog)

NXP Semiconductors
TDA6650ATT; TDA6651ATT
5 V mixer/oscillator and low noise PLL synthesizer
Table 21. Complete sequence 1
Start Address
byte
Divider
byte 1
Divider
byte 2
S
C2 A 15 A E0 A
Control
byte 1^[1]
C9 A
Control
byte 2
E4 A
Control
byte 1^[2]
84 A
Stop
P
[1] Control byte 1 with bit T/A = 1, to program test bits T2, T1 and T0 and reference divider ratio bits R2, R1
and R0.
[2] Control byte 1 with bit T/A = 0, to program AGC time constant bit ATC and AGC take-over point bits
AL2, AL1 and AL0.
Table 22. Complete sequence 2
Start Address
byte
Control
byte 1^[1]
Control
byte 2
S
C2 A C9 A E4 A
Divider
byte 1
15 A
Divider
byte 2
E0 A
Control
byte 1^[2]
84 A
Stop
P
[1] Control byte 1 with bit T/A = 1, to program test bits T2, T1 and T0 and reference divider ratio bits R2, R1
and R0.
[2] Control byte 1 with bit T/A = 0, to program AGC time constant bit ATC and AGC take-over point bits
AL2, AL1 and AL0.
Table 23.
Start
S
Sequence to program only the main divider ratio
Address byte
Divider byte 1
Divider byte 2
C2
A
15
A
E0
A
Stop
P
Table 24.
Start
S
Sequence to change the charge pump current, the ports and the test mode. If the
reference divider ratio is changed, it is necessary to send the DB1 and DB2 bytes
Address byte
Control byte 1^[1]
Control byte 2
Stop
C2
A
C9
A
E4
A
P
[1] Control byte 1 with bit T/A = 1, to program test bits T2, T1 and T0 and reference divider ratio bits R2, R1
and R0.
Table 25.
Start
S
Sequence to change the test mode. If the reference divider ratio is changed, it is
necessary to send the DB1 and DB2 bytes
Address byte
Control byte 1^[1]
Stop
C2
A
C9
A
P
[1] Control byte 1 with bit T/A = 1, to program test bits T2, T1 and T0 and reference divider ratio bits R2, R1
and R0.
Table 26.
Start
S
Sequence to change the charge pump current, the ports and the AGC data
Address byte
Control byte 1^[1]
Control byte 2
Stop
C2
A
82
A
E4
A
P
[1] Control byte 1 with bit T/A = 0, to program AGC time constant bit ATC and AGC take-over point bits
AL2, AL1 and AL0.
TDA6650ATT_6651ATT_2
Product data sheet
Rev. 02 — 2 February 2007
© NXP B.V. 2007. All rights reserved.
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