SAA5290ZP Philips Semiconductors, SAA5290ZP Datasheet - Page 4

• Manufacturer Part Number: SAA5290ZP
• Description: One page Economy Teletext/TV microcontroller
• Manufacturer: Philips Semiconductors

Philips Semiconductors
PINNING
February 1995
P2.0/TPWM
P2.1/PWM0
P2.2/PWM1
P2.3/PWM2
P2.4/PWM3
P2.5/PWM4
P2.6/PWM5
P2.7
P3.0/ADC0
P3.1/ADC1
P3.2/ADC2
P3.3
P3.4
V
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
V
CVBS0
CVBS1
BLACK
IREF
FRAME
V
COR
RGBREF
B
G
R
VDS
HSYNC
SSD1
SSA
SSD2
One page Economy Teletext/TV
microcontroller
SYMBOL
PIN
10
11
12
30
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
PORT 2: 8-bit open-drain bidirectional port with alternative functions. P2.0/TPWM is the
output for the 14-bit high precision PWM. P2.1/PWM0 to P2.6/PWM5 are the outputs for
the 6-bit PWMs 0 to 5.
PORT 3: 5-bit open-drain bidirectional port with alternative functions. P3.0/ADC0 to
P3.2/ADC2 are the inputs for the software ADC facility.
digital ground 1 for teletext and microcontroller circuits.
PORT 0: 8-bit open-drain bidirectional port. P0.5 and P0.6 have 10 mA current sinking
capability at 0.5 V for direct drive of LEDs.
analog ground.
Composite video input. A positive-going 1 V (peak-to-peak) input is required, connected
via a 100 nF capacitor.
Video black level storage input. This pin should be connected to V
capacitor.
Reference current input for analog circuits, connected to V
De-interlace output synchronized with the VSYNC pulse to produce a non-interlaced
display by adjustment of the vertical deflection currents.
Digital ground 2.
Open-drain, active LOW output which allows selective contrast reduction of the TV
picture to enhance a mixed mode display.
DC input voltage to define the output HIGH level on the RGB pins.
Dot rate character output of the BLUE colour information.
Dot rate character output of the GREEN colour information.
Dot rate character output of the RED colour information.
Video/data switch push-pull output for dot rate fast blanking.
Horizontal sync dedicated input for a TTL-level version of the horizontal sync pulse. The
polarity of this pulse is programmable by register bit TXT1.H POLARITY.
4
DESCRIPTION
SSA
via a 27 k resistor.
Preliminary specification
SSA
via a 100 nF
SAA5290