saa5191 NXP Semiconductors, saa5191 Datasheet - Page 4

• Manufacturer Part Number: saa5191
• Description: Teletext Video Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
Notes
1. Sliced teletext data from external: active HIGH level (current), low
2. While the loop is locking up.
March 1991
STTV
VILS
C
C
C
C
EXD
C
C
CBB
XTAL
CLF
GND
TTC
TTD
V
F13
OSCO
C
OSCI
C
PL
R
C
VCS
C
CVBS
TCS
SYMBOL
filt
store
ampl
zero
time
CLK
P
VCR
hor
Teletext video processor
T
T
BL
impedance input.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN
sync output signal to TV (positive or negative going)
level select input of video input (LOW equals 1 V)
video filtering capacitor of HF loss compensation
HF storage capacitor
amplitude capacitor
zero level capacitor
external data current input (note 1)
data timing capacitor for the adaptive data slicer
clock phase detector capacitor
blanking insertion input
13.875 MHz crystal (double of data rate)
6.9375 MHz clock frequency filter
ground (0 V)
teletext clock output (for computer controlled teletext)
teletext data output (for computer controlled teletext)
13.5 MHz VCO output (for sandcastle generation)
oscillator output to series LC-circuit or crystal
short time constant capacitor at video recorder mode
(note 2)
oscillator input from series LC-circuit or crystal
horizontal phase capacitor / VCR mode
sandcastle input (generated in CCT)
timing resistor for pulse generator
timing capacitor for pulse generator
video composite sync output to CCT
black level capacitor
composite video input signal from TV
text-composite/scan-composite sync input (TSC/SCS)
12 V supply voltage
DESCRIPTION
4
fpage
PIN CONFIGURATION
C store
C ampl
C zero
C CLK
C time
STTV
XTAL
VILS
GND
CCB
EXD
TTC
CLF
C filt
Fig.2 Pin configuration.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Preliminary specification
SAA5191
MEH150
SAA5191
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TCS
CVBS
C BL
VCS
C T
R T
PL
C hor
OSCI
C VCR
OSCO
F13
V P
TTD