SAF7113H中文資料飛利浦?jǐn)?shù)據(jù)手冊PDF規(guī)格書

GENERAL DESCRIPTION

The 9-bit video input processor is a combination of a two-channel analog preprocessing circuit including source selection, anti-aliasing filter and ADC, an automatic clamp and gain control, a Clock Generation Circuit (CGC), a digital multi-standard decoder (PAL BGHI, PAL M, PAL N, combination PAL N, NTSC M, NTSC-Japan, NTSC N and SECAM), a brightness, contrast and saturation control circuit, a multi-standard VBI data slicer and a 27 MHz VBI data bypass; see Fig.1.

FEATURES

? Four analog inputs, internal analog source selectors,

e.g. 4 × CVBS or 2 × Y/C or (1 × Y/C and 2 × CVBS)

? Two analog preprocessing channels in differential

CMOS style for best S/N-performance

? Fully programmable static gain or automatic gain control

for the selected CVBS or Y/C channel

? Switchable white peak control

? Two built-in analog anti-aliasing filters

? Two 9-bit video CMOS Analog-to-Digital Converters

(ADCs), digitized CVBS or Y/C-signals are available on

the VPO-port via I2C-bus control

? On-chip clock generator

? Line-locked system clock frequencies

? Digital PLL for horizontal sync processing and clock

generation, horizontal and vertical sync detection

? Requires only one crystal (24.576 MHz) for all standards

? Automatic detection of 50 and 60 Hz field frequency,

and automatic switching between PAL and NTSC

standards

? Luminance and chrominance signal processing for

PAL BGHI, PAL N, combination PAL N, PAL M,

NTSC M, NTSC N, NTSC 4.43, NTSC-Japan and

SECAM

? User programmable luminance peaking or aperture

correction

? Cross-colour reduction for NTSC by chrominance comb

filtering

? PAL delay line for correcting PAL phase errors

? Brightness Contrast Saturation (BCS) and hue control

on-chip

? Real-time status information output (RTCO)

? Two multi functional real-time output pins controlled by

I2C-bus

? Multi-standard VBI-data slicer decoding World Standard

Teletext (WST), North-American Broadcast Text

System (NABTS), closed caption, Wide Screen

Signalling (WSS), Video Programming System (VPS),

Vertical Interval Time Code (VITC) variants

(EBU/SMPTE) etc.

? Standard ITU 656 YUV 4 : 2 : 2 format (8-bit) on VPO

output bus

? Enhanced ITU 656 output format on VPO output bus

containing:

– active video

– raw CVBS data for INTERCAST applications

(27 MHz data rate)

– decoded VBI data

? Boundary scan test circuit complies with the “IEEE Std.

1149.b1 - 1994” (ID-Code = 1 7113 02B)

? I2C-bus controlled (full read-back ability by an external

controller, bit rate up to 400 kbits/s)

? Low power (<0.5 W), low voltage (3.3 V), small package

(QFP44)

? Power saving mode by chip enable input

? Detection of copy protected input signals according to

the macrovision standard. Can be used to prevent

unauthorized recording of pay-TV or video tape signals.

APPLICATIONS

? Notebook (low power consumption)

? PCMCIA card application

? AGP based graphics cards

? Image processing

? Video phone applications

? Intercast and PC teletext applications

? Security applications.