tda9898 NXP Semiconductors, tda9898 Datasheet - Page 93

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

NXP Semiconductors
14. Test information
TDA9897_TDA9898_3
Product data sheet
Fig 50. Test circuit of TDA9898
(1) Connect resistor if external reference signal is not used.
(2) Connect resistor if crystal is not used.
(3) Use of crystal is optional.
(4) Application depends on synthesizer frequency; see
(5) See
SIF/DIF
VIF/SIF/DIF
VIF/SIF/DIF
RSSI and positive modulation
TOP potentiometer for
Table
MPP1
downconverter
+5 V
loop filter
synthesizer
51
51
51
R LFSYN2 C LFSYN2
54.
2.7 k
1
2
1
2
1
2
(4)
1 : 1
3
1 : 1
3
1 : 1
3
only for port
function
22 k
C CTAGC
C IFAGC
470 nF
100 nF
5
4
5
4
5
4
22 pF
n.c.
C TAGC
loop filter
100 nF
1
2
3
4
5
6
7
8
9
10
11
12
VIF
48
13
330
220 nF
output
14
tuner
AGC
47
sound BPF
output to
C FREF
100 pF
15
reference
4 MHz
input
Rev. 03 — 11 January 2008
46
MPP2
16
from sound BPF
22 k (1)
Table
i.c.
45
FM input
17
V
44
P
57.
= 5 V
loop filter
TDA9898
43
FM PLL
18
n.c.
42
C par
(5)
41
19
analog
ground
3.3 k (2)
R s
C s
40
20
C de-em
4.7 nF
TDA9897; TDA9898
39
FM input
external
22 pF
Multistandard hybrid IF processing
4 MHz (3)
21
ground
synthesizer
trap control
digital
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
n.c.
470 nF
1.5 nF
(b)
(a)
(b)
(a)
C AF2
C AF1
AGC input for DIF
(from channel decoder)
2 V CVBS
output
BVS
AUD
© NXP B.V. 2008. All rights reserved.
ZIF Q or 1st DIF
digital LIF or ZIF I or
analog 2nd sound IF
008aaa045
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