tda8296 NXP Semiconductors, tda8296 Datasheet - Page 32
tda8296
Manufacturer Part Number
tda8296
Description
Tda8296 Digital Global Standard Low If Demodulator For Analog Tv And Fm Radio
Manufacturer
NXP Semiconductors
Datasheet
1.TDA8296.pdf
(87 pages)
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TDA8296
Product data sheet
9.3.8 Digital IF AGC functions
9.3.9 Tuner IF AGC functions
Table 24.
Legend: * = default value.
Table 25.
Legend: * = default value.
Table 26.
Legend: * = default value.
Bit
7
6
5 to 0 -
Bit
7
6 to 0 D_IF_AGC_BW[6:0] R/W
Bit
7
Symbol
-
D_IF_AGC_MODE R/W
Symbol
-
Symbol
POL_TIF
D_IF_AGC_SET_1 register (address 12h) bit description
D_IF_AGC_SET_2 register (address 13h) bit description
T_IF_AGC_SET register (address 15h) bit description
Digital global standard low IF demodulator for analog TV and FM radio
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 3 March 2011
Access Value
R/W
R/W
Access Value
R/W
Access Value
R/W
1*
0*
1
10 0000* reserved, must be set to logic 10 0000
1*
000 0001
000 0010
000 0100
000 1000
001 0000*
010 0000
100 0000
0
1*
Description
reserved, must be set to logic 1
If HIGH, the digital IF AGC detection and gating is
done during the back porch of the video signal.
This Detection mode can be used for all
standards (also L/L-accent standard) without
impact on the IF AGC loop speed.
peak sync AGC (slow peak white L/L-accent
standard)
black level AGC detection
Description
reserved, must be set to logic 1
digital IF AGC 3 dB-loop bandwidth setting
25 Hz
50 Hz
100 Hz
200 Hz
400 Hz
800 Hz
1.6 kHz (not recommended)
Description
tuner IF AGC polarity
inverted tuner IF AGC polarity
normal tuner IF AGC polarity: the higher
the necessary gain, the higher the IF
AGC voltage
TDA8296
© NXP B.V. 2011. All rights reserved.
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