TDA9550 PHILIPS [NXP Semiconductors], TDA9550 Datasheet - Page 73

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

Philips Semiconductors
Table 93 PLL demodulator frequency adjust
Table 94 Video mute
Table 95 Modulation standard
Table 96 AFC window
Table 97 IF sensitivity
Table 98 Search tuning mode
Table 99 Selection external input for sound IF circuit
2000 Jun 22
IFE
MOD
TV signal processor-Teletext decoder with
embedded -Controller
VSW
AFW
STM
0
0
0
0
0
0
0
0
1
IFS
SIF
0
1
0
1
0
1
0
1
0
1
0
1
IFA
X
0
0
0
0
1
1
1
1
normal operation
IF-video signal switched off
negative
positive
normal
enlarged
normal
reduced
normal operation
reduced sensitivity of video indent circuit
IF input not selected
IF input selected (see also table 1)
IFB
X
0
0
1
1
0
1
0
1
IFC
X
0
1
0
1
0
0
1
1
IF SENSITIVITY
MODULATION
AFC WINDOW
58.75 MHz
45.75 MHz
38.90 MHz
38.00 MHz
33.40 MHz
33.90 MHz
42.00 MHz
48.00 MHz
external reference carrier
STATE
MODE
MODE
IF FREQUENCY
73
Table 100Calibration of IF PLL demodulator
Table 101AM/FM operation (QSS versions);
Table 102IF AGC speed
Table 103 Fast filter IF-PLL
Table 104 Gain FM demodulator
Table 105Sound mute
Note
1. The mute is activated when the digital acquisition help
Table 106Window selection of Narrow-band sound PLL
AGC1
FMWS
IFLH
AMFM
AGN
SM1
is out-of-window.
FFI
0
1
0
0
1
1
0
1
0
1
1
0
1
0
1
0
1
TDA955X/6X/8X PS/N1 series
calibration system active
calibration system not active
normal operation
gain +6 dB, to be used for the demodulation of
mono signals in the NTSC system
AGC0
normal operation
FM demodulator activated
normal time constant
increased time constant
small window
large window
SM0
0
1
0
1
1
0
1
0.7
norm
3
6
see note 1
mute on
mute off
norm
norm
norm
Tentative Device Specification
CONDITION
CONDITION
FUNCTION
MODE
MODE
AGC SPEED
CONDITION