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Complete, Direct-Conversion Tuner for DVB-S
and Free-to-Air Applications
Table 12. Status Byte-1 Register
BIT NAME
POR
VASA
VASE
LD
X
BIT LOCATION (0 = LSB)
7
6
5
4
3–0
FUNCTION
Power-on reset status.
0 = Chip status register has been read with a stop condition since last power-on
1 = Power-on reset (power cycle) has occurred, default values have been loaded
in registers
Indicates whether VCO autoselection was successful.
0 = Indicates the autoselect function is disabled or unsuccessful VCO selection
1 = Indicates successful VCO autoselection
Status indicator for the autoselect function.
0 = Indicates the autoselect function is active
1 = Indicates the autoselect process is inactive
PLL lock detector. TURBO bit must be programmed to 1 for valid LD reading.
0 = Unlocked
1 = Locked
Don’t care.
Table 13. Status Byte-2 Register
BIT NAME
VCOSBR[4:0]
ADC[2:0]
BIT LOCATION (0 = LSB)
7–3
2, 1, 0
VCO band readback.
VAS ADC output readback.
000 = Out of lock
001 = Locked
010 = VAS locked
101 = VAS locked
110 = Locked
111 = Out of lock
FUNCTION
14
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