TDA9898HL/V3 NXP [NXP Semiconductors], TDA9898HL/V3 Datasheet - Page 92

• Manufacturer Part Number: TDA9898HL/V3
• Description: Multistandard hybrid IF processing
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
TDA9897_TDA9898_4
Product data sheet
Fig 49. Application diagram of TDA9897 using SAW filter with Nyquist slope
(1) Application depends on synthesizer frequency; see
(2) Application of FM PLL loop filter; see
(3) EMI suppression filter for DC, e.g. BLM21RK121SN1 (Murata).
(4) Optional.
(5) Value depends on application.
IF
downconverter
loop filter
synthesizer
R LFSYN2 C LFSYN2
NYQUIST SLOPE
(1)
M1980
X7550
SAW
SAW
SIF
VIF
(4)
PORT1
C CTAGC
100 nF
n.c.
n.c.
22 pF
(5)
(5)
loop filter
VIF PLL
1
2
3
4
5
6
7
8
9
10
11
12
48
13
C TAGC
220 nF
100
220 nF
14
output
tuner
AGC
47
15
Table
reference
4 MHz
input
46
16
C FREF
100 pF
54.
Rev. 04 — 25 May 2009
45
17
V
P
Table
44
= 5 V
100 nF
470 nF
L (3)
18
FM PLL loop filter
TDA9897
43
57.
42
C par
19
41
analog
ground
R s
C s
(2)
40
20
C de-em
4.7 nF
39
FM input
external
3.3 k
TDA9897; TDA9898
21
ground
synthesizer
trap control
digital
Multistandard hybrid IF processing
loop filter
22
38
SDA
23
470
100 nF
100
SCL
n.c.
37
24
36
35
34
33
32
31
30
29
28
27
26
25
100
ADRSEL
PORT2
470 nF
1.5 nF
C AF
AGC input for DIF
(from channel decoder)
2 V CVBS
output
BVS
AUD
© NXP B.V. 2009. All rights reserved.
1st DIF
digital LIF or
analog 2nd
sound IF
001aai817
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