SAA7110 Просмотр технического описания (PDF) - Philips Electronics

Номер в каталоге

Компоненты Описание

Список матч

SAA7110

One Chip Front-end 1 (OCF1)

Philips Electronics 

Philips Semiconductors

One Chip Front-end 1 (OCF1)

Product specification

SAA7110; SAA7110A

1 FEATURES

• Six analog inputs (6 × CVBS or 3 × Y/C or

combinations)

• Three analog processing channels

• Three built-in analog anti-aliasing filters

• Analog signal adding of two channels

• Two 8-bit video CMOS analog-to-digital converters

• Fully programmable static gain for the main channels or

automatic gain control for the selected CVBS/Y channel

• Selectable white peak control signal

• Luminance and chrominance signal processing for

PAL B/G, NTSC M and SECAM

• Full range HUE control

• Automatic detection of 50/60 Hz field frequency, and

automatic switching between standards PAL and NTSC,

SECAM forceable

• Horizontal and vertical sync detection for all standards

• Cross-colour reduction by chrominance comb filtering

for NTSC or special cross-colour cancellation for

SECAM

• UV signal delay lines for PAL to correct chrominance

phase errors

• The YUV-bus supports a data rate of:

– 780 × fh = 12.2727 MHz for 60 Hz (NTSC)

– 944 × fh = 14.75 MHz for 50 Hz (PAL/SECAM)

• Square pixel format with 768/640 active samples per

line on the YUV-bus

• CCIR 601 level compatible

• 4 : 2 : 2 and 4 : 1 : 1 YUV output formats in 8-bit

resolution

• User programmable luminance peaking for aperture

correction

• Compatible with memory-based features

(line-locked clock, square pixel)

• Requires only one crystal (26.8 MHz) for all standards

• Real time status information output (RTCO)

• Brightness Contrast Saturation (BCS) control for the

YUV-bus

• Negation of picture possible

• One user programmable general purpose switch on an

output pin

• Switchable between on-chip Clock Generation Circuit

(CGC) and external CGC (SAA7197)

• Power-on control

• I2C-bus controlled.

2 APPLICATIONS

• Desktop video

• Multimedia

• Digital television

• Image processing

• Video phone

• Video picture grabbing.

3 GENERAL DESCRIPTION

The one chip front-end SAA7110; SAA7110A is a digital

multistandard colour decoder (OCF1) on the basis of the

DIG-TV2 system with two integrated Analog-to-Digital

Converters (ADCs), a Clock Generation Circuit (CGC) and

Brightness Contrast Saturation (BCS) control.

The CMOS circuit SAA7110; SAA7110A, analog front-end

and digital video decoder, is a highly integrated circuit for

desktop video applications. The decoder is based on the

principle of line-locked clock decoding. It operates

square-pixel frequencies to achieve correct aspect ratio.

Monitor controls are provided to ensure best display. The

circuit is I2C-bus controlled.

4 QUICK REFERENCE DATA

SYMBOL

VDDA

VDDD

Tamb

PARAMETER

analog supply voltage

digital supply voltage

operating ambient temperature

MIN.

4.75

4.5

0

MAX.

5.25

5.5

70

UNIT

V

V

°C

1995 Oct 18

3

Share Link: