TDA8296 Datasheet, PDF (27/87 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
10
DTO_PC
frequency
value
(MHz) ⁸
6
4
2
(1)
0
0
4
001aan388
(2)
8
12
DTO_PC reg val (dec) (1E6)
(1) relation for L’
(2) relation for systems L; M/N; B/G; I; D/K
Fig 7. TDA8296 DTO_PC characteristic
Table 18. Values of DTO_PC per TV standard at 54 MHz sampling frequency
Standard
DTO_SC[23:16]
DTO_SC[15:8]
DTO_SC[7:0]
DTO_PC frequency value
M/N
99h
99h
9Ah
5.40 MHz
B
86h
A3h
15h
6.40 MHz
G
80h
00h
00h
6.75 MHz
I
76h
84h
BEh
7.25 MHz
D/K
7Eh
1Ah
8Ch
6.85 MHz
L
80h
00h
00h
6.75 MHz
L-accent
17h
B4h
26h
1.25 MHz
Table 19. DTO_SC_LOW, DTO_SC_MID and DTO_SC_HIGH register (address 0Ch to 0Eh) bit description
Legend: * = default value.^[1]
Address Register
Bit Symbol
Access Value Description
0Ch
DTO_SC_LOW 7 to 0 DTO_SC[7:0] R/W 00h*
The DTO_SC is suited for SSIF band-pass filter
0Dh
DTO_SC_MID 7 to 0 DTO_SC[15:8] R/W 20h*
tuning. DTO_SC is calculated according to the
0Eh
DTO_SC_HIGH 7 to 0 DTO_SC[23:16] R/W 59h*
following formula, whereas f_SC is the SSIF
band-pass center frequency:
DTO_SC
=
------^f--^S---^C-------
f_ADC ⁄ 4
×
2²⁴
.
[1] Deviating from easy programming values for DTO_SC[23:0] the values from Table 20 should be used.
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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