MAX3542(2010) データシートの表示（PDF） - Maxim Integrated
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MAX3542 Datasheet PDF : 20 Pages
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Complete Single-Conversion
Television Tuner
Table 9. Tracking Filter Series Capacitor Register (Address: 0111b)
BIT NAME
BIT LOCATION (0 = LSB)
RECOMMENDED
DEFAULT
FUNCTION
TFS[7:0]
7–0
00001111* Programs series capacitor values in the tracking filter.
*See the RF Tracking Filter section.
Table 10. Tracking Filter Parallel Capacitor Register (Address: 1000b)
BIT NAME BIT LOCATION (0 = LSB) RECOMMENDED
DEFAULT
FUNCTION
FLD
7
0
Filter load bit. A 0 to 1 transition of this bit forces the loading of the
ROM Table Data Readback register.
RESERVED
6
0
Must be set to 0.
TFP[5:0]
5–0
001001*
Programs parallel capacitor values in the tracking filter.
*See the RF Tracking Filter section.
Table 11. Tracking Filter ROM Address Register (Address: 1001b)
BIT NAME
BIT LOCATION (0 = LSB)
RECOMMENDED
DEFAULT
FUNCTION
RESERVED
7–4
0000
Must be set to 0000.
TFA[3:0]
3–0
0000*
Address bits of the ROM register to be read.
*See the RF Tracking Filter section.
Table 12. Reserved Register (Address: 1010b)
BIT NAME
RESERVED
BIT LOCATION (0 = LSB)
RECOMMENDED
DEFAULT
FUNCTION
7–0
N/A
Reserved. Do not program these bits during normal operation.
Table 13. ROM Table Data Readback Register (Address: 1011b)
BIT NAME
BIT LOCATION (0 = LSB)
RECOMMENDED
DEFAULT
FUNCTION
TFR[7:0]
7–0
00000000* Tracking filter data bits read from the device’s ROM table.
*See the RF Tracking Filter section.
Table 14. Status Register (Address: 1100b)
BIT NAME
POR
LD[2:0]
RESERVED
BIT LOCATION (0 = LSB)
RECOMMENDED
DEFAULT
FUNCTION
Power-on reset.
7
N/A
0 = Status register has been read
1 = Power reset since last status register read
VCO tuning voltage indicators.
6–4
N/A
000 = PLL not in lock, tune to the next lowest sub-band
001–110 = PLL in lock
111 = PLL not in lock, tune to the next higher sub-band
3–0
N/A
Reserved.
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