TDA9550 PHILIPS [NXP Semiconductors], TDA9550 Datasheet - Page 11

• Manufacturer Part Number: TDA9550
• Description: TV signal processor-Teletext decoder with embedded m-Controller
• Manufacturer: PHILIPS [NXP Semiconductors]

Table 1
Note
1. When the AM/FM mode is chosen several pins have a different function. For this reason this mode can be selected only when the adapted
2. When in the AM/FM mode the AM bit is activated a capacitor with a value of about 2.2 F has to be switched externally in parallel with the sound
3. When additional (external) selectivity is required for FM-PLL system pin 32 can be used as sound IF input. This function is selected by means of
AMFM bit
East-West Y/N
CMB1/CMB0 bits
AM bit
Pin 20
Pin 28
Pin 29
Pin 31
Pin 32
Pin 35
Pin 44
IC version
application is used.
PLL filter
SIF bit in subaddress 21H.
Pin functions for various versions
SNDIF
00
(3)
AVL
N
01/10/11
REFO AVL/SNDIF
FM-PLL version
DECSDEM
AUDEEM
AUDOUT
AUDEXT
SNDPLL
0
00
EWD
Y
(3)
01/10/11
REFO
SNDPLL SIFAGC
controlled audio out
AUDEEM/AMOUT
AM/FM MODE
0
DECSDEM
AUDEXT
SIFIN1
SIFIN2
N
1
1
(1)
(2)
AUDEXT
AMOUT
00
QSSO
QSS VERSION
AVL
N
0
01/10/11
REFO
AMOUT AUDEXT
controlled AM out
NORMAL MODE
1
SIFAGC
SIFIN1
SIFIN2
0
AMOUT
00
QSSO
EWD
Y
0
01/10/11
REFO
AMOUT
1