參數(shù)資料
型號(hào)： SAA4998H
廠(chǎng)商： NXP Semiconductors N.V.
英文描述： Field and line rate converter with noise reduction and embedded memory
中文描述： 場(chǎng)和符合降噪和嵌入式存儲(chǔ)器率轉(zhuǎn)換器
文件頁(yè)數(shù)： 3/39頁(yè)
文件大?。?/td> 175K
代理商： SAA4998H
2004 Feb 18
3
Philips Semiconductors
Product specification
Field and line rate converter with noise
reduction and embedded memory
SAA4998H
1
FEATURES
Motion compensated frame rate upconversion of all 1f
H
film and video standards up to 292 active input lines per
field:
– 50 Hz interlaced to 60 Hz progressive
{(60p mode for LCD and Plasma Display (PDP) TV}
– 50 Hz interlaced to 75 Hz interlaced
{75i mode for jumbo screens, Projection TV (PTV)}
– 50 Hz interlaced to 100 Hz interlaced
(high-end 100 Hz TV)
– 50 Hz interlaced to 50 Hz progressive
(progressive scan TV and LCD and PDP TV)
– 60 Hz interlaced to 60 Hz progressive
(progressive scan TV and LCD and PDP TV)
– 60 Hz interlaced to 90 Hz interlaced
(jumbo screens, PTV)
– 60 Hz interlaced to 120 Hz interlaced
(multistandard high-end 100 Hz TV)
480 active lines (NTSC like) or 506 active lines in 50 Hz
interlaced to 60 Hz progressive mode
Motion compensated and Edge Dependent
De-Interlacing (EDDI)
(1)
Motion estimated film mode detection
Motion compensated movie judder cancellation:
– 25 Hz 2 : 2 pull-down (PAL) to 60 Hz progressive or
75 Hz interlaced or 100 Hz interlaced or 50 Hz
progressive
– 30 Hz2 : 2pull-down(NTSC)to60 Hzprogressiveor
90 Hz interlaced or 120 Hz interlaced
– 24 Hz3 : 2pull-down(NTSC)to60 Hzprogressiveor
90 Hz interlaced or 120 Hz interlaced
Variable vertical sharpness enhancement
High quality vertical zoom
Motion compensated temporal noise reduction with
after-imaging cancellation
Split screen demonstration mode
2 Mbaud serial interface (SNERT)
Embedded 2
×
2.9-Mbit DRAM
Full 8-bit accuracy
Memory buffer for Picture-In-Picture (PIP)
Lead-free package.
2
GENERAL DESCRIPTION
The SAA4998H is a high performance video processor
featuring Natural Motion
(2)
, for all global TV standards
(PAL, NTSC and SECAM). It is used together with the
picture improvement processor SAA4978H and
SAA4979H.
The SAA4998H is an advanced version of the SAA4993H.
By embedding the field memories it reduces the part count
oftherealizedconceptfrom4 to 6partstoonly2 partsand
reduces the package size from a QFP160 to a QFP100.
The full FALCONIC mode uses full motion estimation and
motion compensation on
1
/
4
pixel accuracy to perform
Frame rate upconversion
Film mode detection
Movie judder cancellation
Dynamic Noise Reduction (DNR)
Edge Dependent De-Interlacing (EDDI).
The motion compensated de-interlacer is improved with a
new patented Edge Dependent De-Interlacing (EDDI)
method. This avoids jagged edges of diagonal lines. The
better de-interlacer leads to a significant better
performance of progressive as well as interlaced output
formats.
A 60 Hz progressive output frame rate can be generated
for 50 Hz PAL sources to enable the use of 60 Hz LCD or
PDP panels in PAL regions.
50 Hz interlaced to 75 Hz interlaced and 60 Hz interlaced
to 90 Hz interlaced can be generated to achieve an
increased number of lines and hence a reduction of line
visibility for jumbo screens and PTV applications.
The embedded memory can be used to synchronize the
main channel and the 2nd channel for PIP and double
window applications. This avoids to add additional buffer
memory devices to the application.
For demonstration purposes a split screen mode to show
the Dynamic Noise Reduction (DNR) function, natural
motion, and EDDI is available. The estimated motion
vectors can be made visible by colour overlay mode.
The SAA4998H supports a Boundary Scan Test (BST)
circuit in accordance with “IEEE Std. 1149.1”
(1) EDDI is protected with two patents of Koninklijke Philips
Electronics N.V.
(2) Natural Motion is a trademark of Koninklijke Philips
Electronics N.V.
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