TDA18271HD/C2,557 NXP Semiconductors, TDA18271HD/C2,557 Datasheet - Page 40

• 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

NXP Semiconductors
TDA18211HD_5
Product data sheet
Fig 19. Flowchart TDA18211CalcCALPLL
CAL_PLL_map
freq_input
CAL_POST_DIV
Div
freq_input
CAL_DIV
9.4.14 Flowchart TDA18211CalcCALPLL
CPD, CD1, CD2 and CD3 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.
Table 37.
Function
Description
Input
Table
Output
Find CAL_POST_DIV, Div = f
Update CPD byte
CAL_DIV = (Div
Update CD1, CD2, CD3 bytes
Tuner registers update
TDA18211CalcCALPLL
Description
find the correct values for the bytes
CPD, CD1, CD2, CD3 and update the
tuner registers
freq_input, MS
CAL_PLL_map
Start TDA18211CalcCALPLL
End TDA18211CalcCALPLL
freq_input
Rev. 05 — 2 June 2009
LO(max)
2
7
) / 125d
in CAL_PLL_map
Internal table
CPD = CAL_POST_DIV
CD1 = (CAL_DIV / 2
CD2 = (CAL_DIV / 2
CD3 = CAL_DIV
-
Reference
Table 46 “CAL_PLL_map”
TDA18211HD
16
8
)
) && 7Fh
DVB-T Silicon Tuner IC
CAL_POST_DIV
Div
© NXP B.V. 2009. All rights reserved.
I
-
-
CPD … CD3
MS
2
C-bus
CAL_DIV
001aag949
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