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TDA18211HD

DVB-T Silicon Tuner IC

NXP Semiconductors. 

NXP Semiconductors

TDA18211HD

DVB-T Silicon Tuner IC

Table 11. TM - Thermo byte (subaddress 01h) bit description …continued

Legend: * power-on reset value

Bit Symbol

Access Value Description

5

TM_RANGE R/W

temperature range selection for the internal die sensor (see

Table 50)

1

92 °C to 122 °C

0*

60 °C to 90 °C

4

TM_ON

R/W 1

enables die temperature measurement (see Table 50)

0* disables die temperature measurement (see Table 50)

3 to 0 TM_D[3:0] R

XXXX data from die temperature measurement (see Table 50)

9.3.4 Description of power level byte (read mode)

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.

Table 12. PL - Power level (address 02h and 03h) bit description

Legend: * power-on reset value

Address Register Bit Symbol

Access Value Description

03h

EP1

7

POWER_LEVEL[8] R

02h

PL

7

POWER_LEVEL[7] R

AGC2 gain, attenuator voltage gain included load, the

attenuator load is 50 Ω (explaining the maximum gain

of −6 dB)

00

−15 dB

01

−12 dB

10

−9 dB

11

−6 dB

6 to 5 POWER_LEVEL[6:5] R

AGC1 gain, LNA voltage gain, the LNA voltage gain

assumes a 75 Ω source impedance and a low output

impedance

00

6 dB

01

9 dB

10

12 dB

11

15 dB

4 to 0 POWER_LEVEL[4:0] R

sensed level at the input of the RF AGC, detector

slope is −1 dB/step

0 0000 103 dBµV (RMS value)

0 0001 102 dBµV (RMS value)

...

...

1 1110 73 dBµV (RMS value)

1 1111 72 dBµV (RMS value)

TDA18211HD_5

Product data sheet

Rev. 05 — 2 June 2009

© NXP B.V. 2009. All rights reserved.

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