TDA18271HD/C2.518 NXP Semiconductors, TDA18271HD/C2.518 Datasheet - Page 40
TDA18271HD/C2.518
Manufacturer Part Number
TDA18271HD/C2.518
Description
Manufacturer
NXP Semiconductors
Datasheet
1.TDA18271HDC2.518.pdf
(70 pages)
Specifications of TDA18271HD/C2.518
Lead Free Status / Rohs Status
Compliant
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TDA18271HD_4
Product data sheet
Fig 19. Flowchart TDA18271CalcCALPLL
CAL_PLL_map
freq_input
CAL_POST_DIV
Div
freq_input
CAL_DIV
9.4.15 Flowchart TDA18271ThermometerRead
Table 39.
Table 40.
Function
Description
Input
Table
Output
Function
Description turns the on-chip temperature sensor ON,
Input
Table
Output
Find CAL_POST_DIV, Div = f
Update CPD byte
CAL_DIV = (Div
Update CD1, CD2, CD3 bytes
Tuner registers update
TDA18271CalcCALPLL
TDA18271ThermometerRead
Description
reads the current temperature on the die and
then turns the temperature sensor OFF
MS
THERMOMETER_map
TMVALUE (temperature in C)
Description
finds the correct values for the bytes CPD, CD1,
CD2, CD3 and update the tuner registers
freq_input, MS
CAL_PLL_map
-
Start TDA18271CalcCALPLL
End TDA18271CalcCALPLL
freq_input
Rev. 04 — 19 May 2009
LO(max)
2
7
) / 125
in CAL_PLL_map
Internal table
CPD = CAL_POST_DIV
CD1 = (CAL_DIV / 2
CD2 = (CAL_DIV / 2
CD3 = CAL_DIV
-
Reference
Table 52 “THERMOMETER_map”
Reference
Table 48 “CAL_PLL_map”
TDA18271HD
16
8
)
) & 7Fh
CAL_POST_DIV
Div
© NXP B.V. 2009. All rights reserved.
I
-
-
CPD … CD3
2
Silicon Tuner IC
C-bus
CAL_DIV
MS
001aah055
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