SAA4951 View Datasheet(PDF) - Philips Electronics

Part Name

Description

View to exact match

SAA4951

Memory controller

Philips Electronics 

Philips Semiconductors

Memory controller

Preliminary specification

SAA4951

FEATURES

• Support for acquisition, display and deflection PLL

• 50/100 (or 60/120) Hz scan conversion for different input

data rates: 12, 13.5, 16 and 18 MHz

• Support for 4:3 and 14:9 display on a 16:9 screen

(horizontal compression)

• Support for Y:U:V data rates of 4:1:1, 4:2:2, and 4:4:4

• Horizontal zoom

• Still picture

• Support for one or two field memories

• Support for different video memory types like

TMS 1050/60/70/2970

• Progressive scan

• Programmable via microcontroller port

• Golden Scart option

• Support for Multi-PIP.

GENERAL DESCRIPTION

The memory controller SAA4951 has been designed for

high end TV sets using 2fH-technics.

The circuit provides all necessary write, read and clock

pulses to control different field memory concepts.

Furthermore the drive signals for the horizontal and

vertical deflection power stages are generated.

The device is connected to a microcontroller via an 8-bit

data bus. The controller receives commands via the

I2C-bus. Due to this fact the start and stop conditions of the

main output control signals are programmable and the

SAA4951 can be set in different function modes

depending on the used TV-feature concept.

QUICK REFERENCE DATA

SYMBOL

VDD

IDD

Tamb

PARAMETER

supply voltage

supply current

operating ambient

temperature

MIN.

4.5

−

0

TYP.

5.0

50

−

MAX.

5.5

−

+70

UNIT

V

mA

°C

ORDERING INFORMATION

EXTENDED

TYPE NUMBER

PINS

SAA4951WP

44

Note

1. SOT187-2; 1996 December 13.

PIN

POSITION

PLCC

PACKAGE

MATERIAL

plastic

CODE

SOT187(1)

April 1994

2

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