TDA8263HN データシートの表示（PDF） - Philips Electronics
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TDA8263HN Datasheet PDF : 28 Pages
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Philips Semiconductors
TDA8263HN
Fully integrated satellite tuner
9397 750 13193
Product data sheet
Table 11: VCO preprogramming range; bits D[4:0] …continued
These bits are also called Dword: It determines the ratio between LO frequency and VCO frequency.
The bits are used for the calibration protocol of the internal VCO.
D4
D3
D2
D1
D0
Decimal Ratio fLO to fVCO
0
0
1
0
0
4
0.36
0
0
1
0
1
5
0.36
0
0
1
1
0
6
0.38
0
0
1
1
1
7
0.40
0
1
0
0
0
8
0.42
0
1
0
0
1
9
0.43
0
1
0
1
0
10
0.44
0
1
0
1
1
11
0.45
0
1
1
0
0
12
0.46
0
1
1
0
1
13
0.47
0
1
1
1
0
14
0.50
0
1
1
1
1
15
0.54
1
0
0
0
0
16
0.55
1
0
0
0
1
17
0.56
1
0
0
1
0
18
0.58
1
0
0
1
1
19
0.60
1
0
1
0
0
20
0.63
1
0
1
0
1
21
0.64
1
0
1
1
0
22
0.67
1
0
1
1
1
23
0.70
1
1
0
0
0
24
0.75
1
1
0
0
1
25
0.78
1
1
0
1
0
26
0.88
1
1
0
1
1
27
0.88
1
1
1
0
0
28
0.88
1
1
1
0
1
29
0.88
1
1
1
1
0
30
0.88
1
1
1
1
1
31
0.88
Table 12: Main divider range; bits N[14:0]
These bits control the ratio between the LO frequency and the comparison frequency.
N[14:0]
Ratio
Binary value
The ratio N is equal to N14 × 214 + N13 × 213 + ...N1 × 21 + N0
Table 13: Selects manual or automatic LC oscillator calibration; bit CALMANUAL
This bit controls the LC VCO frequency programming mode.
CALMANUAL
Action
0
automatic process control; the LC VCO searches the better ratio of the
Dword to have the optimum tuning frequency
1
manual process control; the LC VCO is tuned by selecting the
programmed Dword
Rev. 01 — 14 December 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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