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TDA18211HD Datasheet PDF : 66 Pages
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NXP Semiconductors
TDA18211HD
DVB-T Silicon Tuner IC
Table 16. Standby modes[1]
Bit
Circuit
SM
SM_LT SM_XT Loop- Slave-
through tuner
output
0
0
0
on
on
1
0
0
on
on
1
1
0
off
off
1
1
1
off
off
Mode
Crystal
oscillator
on Normal mode
on Standby mode with crystal
oscillator, slave-tuner output and
loop-through output on
on Standby mode with only crystal
oscillator and its output buffer on
off Device-off mode
[1] In all modes, the I2C-bus interface remains active. All other codes are not valid.
9.3.8 Description of Easy Prog byte 4
Table 17. EP4 - Easy Prog byte 4 (subaddress 06h) bit description
Legend: * power-on reset value
Bit Symbol
Access Value Description
7
FM_RFN
R/W
selection which input is fed to RF filter
1
FM input (RF LNA on; FM LNA on)
0*
RF input (RF LNA on; FM LNA off)
6
XTOUT_ON
R/W 1* 16 MHz on pins XTOUTP and XTOUTN
0
not 16 MHz on pins XTOUTP and XTOUTN
3
-
R/W 1* must be set to logic 1
4 to 2 IF_LEVEL[2:0] R/W
IF output level selection and attenuation with regard to
2 V (p-p)
000* 2 V (p-p); 0 dB
001
1.25 V (p-p); 4 dB
010
1 V (p-p); 6 dB
011
0.8 V (p-p); 8 dB
100
not used
101
not used
110
not used
111
0.5 V (p-p); 12 dB
1 to 0 CAL_MODE[1:0] R/W
calibration mode selection
00*
no calibration (Normal mode)
01
Power detection mode
10
image rejection calibration (IRCAL) mode
11
RF tracking filters calibration (RFCAL) mode
It is recommended to follow the flowcharts described in Section 9.4 in order to perform
any calibration, as they require a precise set of sequential operations. The further
comments can only give an overview of what is typically done during the flowchart.
The TDA18211HD has two calibration modes: one for the image rejection calibration, and
one for the RF tracking filters calibration.
TDA18211HD_5
Product data sheet
Rev. 05 — 2 June 2009
© NXP B.V. 2009. All rights reserved.
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