tda9898 NXP Semiconductors, tda9898 Datasheet - Page 14

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

NXP Semiconductors
8. Functional description
TDA9897_TDA9898_3
Product data sheet
8.1 IF input switch
Table 3.
Different signal bandwidth can be handled by using two signal processing chains with
individual gain control.
Symbol
MPP2
EXTFILI
n.c.
LFFM
CDEEM
EXTFMI
GNDD
SDA
SCL
ADRSEL
OUT1A
OUT1B
CAF1
OUT2A
OUT2B
AUD
BVS
CVBS
CAF2
n.c.
AGCDIN
n.c.
LFSYN1
OPTXTAL
GNDA
GNDA
n.c.
V
V
i.c.
FREF
TAGC
GND
P
P
Pin description
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Description
multipurpose pin 2: SIF AGC or FM AGC or TAGC or VIF AFC or FM AFC
monitor output
input from external filter
not connected
loop filter FM PLL
de-emphasis capacitor
external FM input
digital ground
I
I
address select
zero IF I or low IF or 2nd sound intercarrier symmetrical output
Direct Current (DC) decoupling capacitor 1
zero IF Q or 1st Digital IF (DIF) symmetrical output
audio signal output
I
composite video signal output
DC decoupling capacitor 2
not connected
AGC input for DIF amplifier for e.g. input from channel decoder AGC
not connected
loop filter synthesizer 1 (filter control synthesizer)
optional quartz input
analog ground
analog ground
not connected
supply voltage
supply voltage
internally connected; connect to ground
4 MHz reference input
TAGC output
ground; plateau connection
2
2
2
C-bus data input and output
C-bus clock input
C-bus voltage select
Rev. 03 — 11 January 2008
…continued
TDA9897; TDA9898
Multistandard hybrid IF processing
© NXP B.V. 2008. All rights reserved.
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