tda9898 NXP Semiconductors, tda9898 Datasheet - Page 20

• Manufacturer Part Number: tda9898
• Description: Multistandard Hybrid If Processing Semiconductors
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA9897_TDA9898_3
Product data sheet
Table 8.
[1]
[2]
Table 9.
Table 10.
Bit
AFC4
R1[4]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit
7
6
5 to 0
reserved
f
In ATV mode f means vision intermediate frequency; in radio mode f means radio intermediate frequency.
nom
7
is the nominal frequency.
Automatic frequency control bits
R2 - data read register 2 bit allocation
R2 - data read register 2 bit description
Symbol
-
TAGC
VAGC[5:0]
TAGC
6
AFC3
R1[3]
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
Rev. 03 — 11 January 2008
VAGC5
Description
reserved
tuner AGC
AGC level detector; VIF AGC in ATV mode, SIF AGC in radio mode
and DIF AGC in DTV mode; see
5
1 = active
0 = inactive
AFC2
R1[2]
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
VAGC4
4
[1]
VAGC3
TDA9897; TDA9898
3
Multistandard hybrid IF processing
AFC1
R1[1]
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Table 11
VAGC2
2
VAGC1
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
nom
nom
nom
nom
nom
nom
nom
nom
nom
nom
nom
nom
nom
nom
[2]
© NXP B.V. 2008. All rights reserved.
(f
(f
1
nom
nom
+ 12.5 kHz
+ 37.5 kHz
+ 62.5 kHz
+ 87.5 kHz
+ 112.5 kHz
+ 137.5 kHz
+ 162.5 kHz
162.5 kHz
137.5 kHz
112.5 kHz
87.5 kHz
62.5 kHz
37.5 kHz
12.5 kHz
+ 187.5 kHz)
187.5 kHz)
VAGC0
20 of 103
0