TDA18271HD/C2,557 NXP Semiconductors, TDA18271HD/C2,557 Datasheet - Page 21

• 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
Table 23.
Legend: * power-on reset value
TDA18211HD_5
Product data sheet
Address
24h
25h
26h
EB1 to EB23 - Extended bytes 1 to 23 (address 10h to 26h) bit description
Register
EB21
EB22
EB23
Table 24.
Bit
7
6 to 2
1 and 0 AGC2_GAIN[1:0]
7
6 to 4
3 to 0
7 to 3
2
1
0
FORCELP_FC2_EN
0
0
0
0
Symbol
AGC2_LOOP_OFF
EB21[6:2]
EB22[7]
RFAGC_TOP[2:0]
IFAGC_TOP[3:0]
EB23[7:3]
FORCELP_
FC2_EN
LP_FC[2]
EB23[0]
Low pass cut-off frequency
LP_FC[2]
X
X
X
X
Rev. 05 — 2 June 2009
Access
R/W
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
Value
1
0*
0 1100*
00
01
10
11*
0*
100*
1000*
1 0110*
0*
0*
0*
STD[1:0]
00
01
10
11
Description
turns the AGC2 loop
extended byte 21
AGC2 gain
extended byte 22
take over point of the RF AGC,
detection in RF
take over point of the RF AGC,
detection in IF
extended byte 23
1.5 MHz bandwidth filter selection; see
Table 24
extended byte 23
off
on
15 dB
12 dB
9 dB
6 dB
…continued
TDA18211HD
DVB-T Silicon Tuner IC
Cut-off frequency (MHz)
6
7
8
9
© NXP B.V. 2009. All rights reserved.
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