TDA18271HD/C2 データシートの表示（PDF） - NXP Semiconductors.
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TDA18271HD/C2 Datasheet PDF : 70 Pages
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NXP Semiconductors
TDA18271HD
Silicon Tuner IC
Table 13. EP1 - Easy prog byte 1 (subaddress 03h) bit description …continued
Legend: * power-on reset value.
Bit Symbol
Access Value Description
3
IR_CAL_OK
R/W
complete image rejection calibration procedure
(see Section 9.4.4); can only be reset with POR
1
successful
0*
not successful
2 to 0 BP_FILTER[2:0]
R/W 110* RF band-pass filter selection (see Table 44)
9.3.6 Description of Easy prog byte 2
Table 14. EP2 - Easy prog byte 2 (subaddress 04h) bit description
Legend: * power-on reset value.
Bit Symbol
Access Value Description
7 to 5 RF_BAND[2:0]
R/W 110* RF tracking filter band selection (see Table 45)
4 to 0 GAIN_TAPER[4:0] R/W
gain taper value (see Table 49)
1 1111* minimum attenuation
0 0000 maximum attenuation
9.3.7 Description of Easy prog byte 3
The TDA18271HD has three different Standby modes. Two Standby modes are dedicated
to special application demands; the third Standby mode is called ‘device-off’. It represents
the smallest achievable power consumption.
Table 15. EP3 - Easy prog byte 3 (subaddress 05h) bit description
Legend: * power-on reset value.
Bit Symbol
Access Value Description
7 to 5 SM, SM_LT,
SM_XT
R/W
100
Power modes Table 16
4 to 3 AGCK_MODE[1:0] R/W
10010* defines the standard
2 to 0 STD[2:0]
R/W
description of standards (see Table 43)
Table 16. Power modes
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
Crystal
oscillator
Mode[1]
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 bit settings are invalid.
TDA18271HD_4
Product data sheet
Rev. 04 — 19 May 2009
© NXP B.V. 2009. All rights reserved.
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