tda9898 NXP Semiconductors, tda9898 Datasheet - Page 65

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

NXP Semiconductors
TDA9897_TDA9898_3
Product data sheet
Fig 17. Typical analog and digital AFC characteristic for VIF
Fig 18. Typical analog and digital AFC characteristic for RIF
f
f
AFC(VIF)
AFC(RIF)
(kHz)
(kHz)
(1) VIF AFC via I
(2) Bit AFCWIN via I
(3) Bit AFCWIN via I
(4) VIF AFC average current.
(5) Reading via I
(6) Average; RC network at pin MPP2.
(1) RIF AFC via I
(2) FM carrier detection via I
(3) RIF AFC average current.
(4) Reading via I
(5) Average; RC network at pin MPP2.
250
150
150
250
250
150
150
250
50
50
50
50
36.375
0
0
Characteristics of digital and analog radio AFC is mirrored with respect to center frequency when lower sideband is used
(W2[3] = 0).
5.0
(5)
(4)
AFC undefined
36.875
2
2
2
2
C-bus.
C-bus.
C-bus; accuracy is 1 digit.
C-bus.
2
2
C-bus (VCO is in 1.6 MHz window) for all standards except M/N standard.
C-bus (VCO is in 0.8 MHz window) for M/N standard.
5.2
2
C-bus.
37.375
bit AFCWIN (R1[7]) = 1
37.875
Rev. 03 — 11 January 2008
5.4
bit CARRDET (R1[5]) = 1
38.375
5.6
38.875
TDA9897; TDA9898
(1)
(3)
(4)
(1)
(2)
(3)
Multistandard hybrid IF processing
39.375
5.8
AFC undefined
39.875
f
RIF
(MHz)
f
VIF
© NXP B.V. 2008. All rights reserved.
(2)
008aaa035
001aad443
(MHz)
40.375
6.0
250
150
50
0
250
150
50
0
I
50
150
250
I
50
150
250
65 of 103
AFC
AFC
( A)
( A)
(6)
(5)