TDA8296 Datasheet, PDF (42/87 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

NXP Semiconductors
TDA8296
Digital global standard low IF demodulator for analog TV and FM radio
150
AFC
reg val
50
001aam356
−50
(1)
(2)
±830 kHz PLL lock mode
(2)
(1)
−150
−2000
−1000
±1660 kHz PLL lock mode
0
(1) Undefined area in 1660 kHz mode
(2) Undefined area in 830 kHz mode
Fig 15. TDA8296 AFC characteristic
1000
2000
Df (MHz)
Table 41. HVPLL_STAT register (address 26h) bit description
Bit
Symbol
Access Value Description
7 and 6 -
R
-
not used
5
NOISE_DET R
-
This flag gets HIGH in case the video S/N (weighted)
drops below 30 dB. For proper and noise free video
signals it stays LOW. It can be used for debugging and
other purposes.
4
MAC_DET R
-
This flag indicates the presence of copy-guarded video
content from STBs or VCRs. It can be used for
debugging and other purposes.
3
FIDT
R
-
This flag indicates the frame rate (50 Hz or 60 Hz).
When active, 60 Hz is detected. It can be used for
debugging and other purposes.
2
V_LOCK R
-
This flag is active, if a proper frame (50 Hz or 60 Hz) is
detected. It can be used for debugging and other
purposes.
1
F_H_LOCK R
-
This flag is active, if a proper H-sync (15.625 kHz or
15.734 kHz) is detected (Fast mode). It can be used for
debugging and other purposes.
0
N_H_LOCK R
-
This flag is active, if a proper H-sync (15.625 kHz or
15.734 kHz) is detected (Normal mode). It can be used
for debugging and other purposes.
TDA8296
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 3 March 2011
© NXP B.V. 2011. All rights reserved.
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