TDA18271HD/C2,557 NXP Semiconductors, TDA18271HD/C2,557 Datasheet - Page 14

• 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 12.
Legend: * power-on reset value
TDA18211HD_5
Product data sheet
Address Register Bit
03h
02h
EP1
PL
PL - Power level (address 02h and 03h) bit description
9.3.4 Description of power level byte (read mode)
7
7
6 to 5 POWER_LEVEL[6:5] R
4 to 0 POWER_LEVEL[4:0] R
Table 11.
Legend: * power-on reset value
There are 9 power level bits, dispatched in byte 2 and 3. They indicate the composite
voltage gain of the LNA, the loaded attenuator voltage gain, and the level at the input of
the RF AGC.
Bit
5
4
3 to 0 TM_D[3:0]
Symbol
POWER_LEVEL[8]
POWER_LEVEL[7]
Symbol
TM_RANGE R/W
TM_ON
TM - Thermo byte (subaddress 01h) bit description
Access Value Description
R/W
R
Rev. 05 — 2 June 2009
Access Value
R
R
1
0*
1
0*
XXXX data from die temperature measurement (see
00
01
10
11
00
01
10
11
0 0000
0 0001
...
1 1110
1 1111
temperature range selection for the internal die sensor (see
Table
enables die temperature measurement (see
disables die temperature measurement (see
92 C to 122 C
60 C to 90 C
Description
AGC2 gain, attenuator voltage gain included load, the
attenuator load is 50
of 6 dB)
AGC1 gain, LNA voltage gain, the LNA voltage gain
assumes a 75
impedance
sensed level at the input of the RF AGC, detector
slope is 1 dB/step
50)
6 dB
9 dB
12 dB
15 dB
103 dB V (RMS value)
102 dB V (RMS value)
...
73 dB V (RMS value)
72 dB V (RMS value)
15 dB
12 dB
9 dB
6 dB
source impedance and a low output
…continued
TDA18211HD
(explaining the maximum gain
DVB-T Silicon Tuner IC
© NXP B.V. 2009. All rights reserved.
Table
Table
Table
50)
50)
50)
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