TDA18271HD/C2,557 NXP Semiconductors, TDA18271HD/C2,557 Datasheet - Page 39
TDA18271HD/C2,557
Manufacturer Part Number
TDA18271HD/C2,557
Description
IC TV SILICON TUNER 64-HLQFN
Manufacturer
NXP Semiconductors
Type
Silicon Tunerr
Specifications of TDA18271HD/C2,557
Applications
Set-Top Boxes
Mounting Type
Surface Mount
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935285058557
TDA18271HD/C2
TDA18271HD/C2
TDA18271HD/C2
TDA18271HD/C2
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NXP Semiconductors
TDA18211HD_5
Product data sheet
Fig 18. Flowchart TDA18211CalcMAINPLL
MAIN_POST_DIV
MAIN_PLL_map
freq_input
Div
freq_input
MAIN_DIV
9.4.13 Flowchart TDA18211CalcMAINPLL
Table 36.
MPD, MD1, MD2 and MD3 are 8-bit registers. Arithmetical and logical operations
performed on those registers are considered binary operations. (Dividing is right shifting
and multiplying is left shifting, etc.)
Function
Description
Input
Table
Output
Find MAIN_POST_DIV, Div = f
Update MPD byte
MAIN_DIV = (Div
Update MD1, MD2, MD3 bytes
Tuner registers update
TDA18211CalcMAINPLL
Description
find the correct values for the bytes
MPD, MD1, MD2, MD3 and update the
tuner registers
freq_input, MS
MAIN_PLL_map
-
Start TDA18211CalcMAINPLL
End TDA18211CalcMAINPLL
freq_input
Rev. 05 — 2 June 2009
LO(max)
2
7
) / 125d
in MAIN_PLL_map
Internal table
MPD = MAIN_POST_DIV && 7Fh
MD1 = (MAIN_DIV / 2
MD2 = (MAIN_DIV / 2
MD3 = MAIN_DIV
-
Reference
Table 45 “MAIN_PLL_map”
TDA18211HD
16
8
)
) && 7Fh
DVB-T Silicon Tuner IC
MAIN_POST_DIV
Div
© NXP B.V. 2009. All rights reserved.
I
-
-
MPD … MD3
MS
2
C-bus
MAIN_DIV
001aag948
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