TDA18271HD/C2.557 NXP Semiconductors, TDA18271HD/C2.557 Datasheet - Page 24

• Manufacturer Part Number: TDA18271HD/C2.557
• Manufacturer: NXP Semiconductors

Specifications of TDA18271HD/C2.557

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
TDA18271HD_4
Product data sheet
Units: In the flowcharts, hexadecimal values end with “h”, decimal values with “d”.
Fig 4.
Fig 5.
Fig 6.
a. General description to find a value in a table
b. Example to find the value RFC_K corresponding to f
Blocks used in the flowcharts
Master/slave variable MS_init is input for each of the three procedures.
Variable used in multiple procedures
xx is a list of values stored in the first column of the map XY_map.
yy is a list of values stored in column in XY_map
yy_out is the particular value of yy to find row n. xx(n
Finding the row of RFC_K: 350000 < 650000
3; see
Finding a value in a table
Table 46
650 MHz
KM_map
XY_map
Rev. 04 — 19 May 2009
xx_in
MS_init
X
X
X
X
X
X
X
X
Find yy = f(xx) in XY_map
Find RFC_K = f
I
Call TDA18271FixedContentsI2Cupdate
Calibrate the RF tracking filters
Call TDA18271CalcRFFilterCurve
Back to POR
Call TDA18271MSPOR
2
C-bus initialization sequence
stored or already calculated data
input variable
result of an operation
output variable
KM_map
RF(max)
720000. Result n = 1. The value of RFC_K is then
in
1) < xx_in
001aag722
RF
001aah042
= 650 MHz in the KM_map
RFC_K
yy_out
TDA18271HD
001aag822
001aag723
xx(n)
© NXP B.V. 2009. All rights reserved.
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