TDA18271HD/C2,557 NXP Semiconductors, TDA18271HD/C2,557 Datasheet - Page 18

• 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
9.3.12 Description of Main Post-Divider byte
9.3.13 Description of Main divider bytes 1, 2 and 3
Table 21.
Legend: * power-on reset value
Table 22.
Legend: * power-on reset value
Bit
7
6 to 4
3
Address Register Bit
0Dh
0Eh
0Fh
2 to 0
Symbol
IF_NOTCH
MAIN_POST_DIV[6:4]
DCDC_CKSW
MAIN_POST_DIV[2:0]
MD1
MD2
MD3
MPD - Main Post-Divider byte (subaddress 0Ch) bit description
MD1, MD2 and MD3 - Main divider bytes 1, 2 and 3 (address 0Dh, 0Eh and 0Fh) bit
description
7
6 to 0 MAIN_DIV[22:16] R/W
7 to 0 MAIN_DIV[15:8]
7 to 0 MAIN_DIV[7:0]
Rev. 05 — 2 June 2009
Symbol
-
Access
R/W
R/W
R/W
R/W
Value
0*
000*
1
0*
000*
Access Value Description
R/W
R/W
R/W
0*
00h*
00h*
00h*
Description
adds a DC notch in IF for a better
adjacent channels rejection; depends
on standards; see
LO synthesizer post-divider (see
Table
allows switching between 16 MHz and
sub-harmonic LO for DC-to-DC
converter locking
LO synthesizer post-divider (see
Table
16 MHz
sub-harmonic LO
must be set to logic 0
LO synthesizer main divider bits
45)
45)
TDA18211HD
DVB-T Silicon Tuner IC
© NXP B.V. 2009. All rights reserved.
Table 41
18 of 66