- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄36339 > 935268832557 (NXP SEMICONDUCTORS) COLOR SIGNAL DECODER, PQFP160 PDF資料下載
參數(shù)資料
| 型號(hào)： | 935268832557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號(hào)轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP160 |
| 封裝： | 28 X 28 MM, 3.40 MM HEIGHT, LEAD FREE, PLASTIC, MS-022, SOT322-2 , QFP-160 |
| 文件頁數(shù)： | 121/178頁 |
| 文件大小： | 988K |
| 代理商： | 935268832557 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁當(dāng)前第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁
2004 Jul 22
47
Philips Semiconductors
Product specication
Multistandard video decoder with adaptive
comb lter and component video input
SAA7118
8.4
Scaler
The High Performance video Scaler (HPS) is based on the
system as implemented in previous products, but with
some aspects enhanced. Vertical upsampling is supported
and the processing pipeline buffer capacity is enhanced, to
allow more flexible video stream timing at the image port,
discontinuous transfers, and handshake. The internal data
flow from block to block is discontinuous dynamically, due
to the scaling process.
The flow is controlled by internal data valid and data
request flags (internal handshake signalling) between the
sub-blocks; therefore the entire scaler acts as a pipeline
buffer. Depending on the actually programmed scaling
parameters the effective buffer can exceed to an entire
line. The access/bandwidth requirements to the VGA
frame buffer are reduced significantly.
The high performance video scaler in the SAA7118 has
the following major blocks:
Acquisition control (horizontal and vertical timer) and
task handling (the region/field/frame based processing)
Prescaler, for horizontal downscaling by an integer
factor, combined with appropriate band limiting filters,
especially anti-aliasing for CIF format
Brightness, saturation, contrast control for scaled output
data
Line buffer, with asynchronous read and write, to
support vertical upscaling (e.g. for videophone
application, converting 240 into 288 lines, Y-CB-CR
4:2:2)
Vertical scaling, with phase accurate Linear Phase
Interpolation (LPI) for zoom and downscale, or phase
accurate Accumulation Mode (ACM) for large
downscaling ratios and better alias suppression
Variable Phase Delay (VPD), operates as horizontal
phase accurate interpolation for arbitrary non-integer
scaling ratios, supporting conversion between square
and rectangular pixel sampling
Output formatter for scaled Y-C
B-CR 4:2:2,
Y-CB-CR 4 : 1 : 1 and Y only (format also used for raw
data)
FIFO, 32-bit wide, with 64 pixel capacity in Y-C
B-CR
formats
Output interface, 8 or 16-bit (only if extended by H port)
data pins wide, synchronous or asynchronous
operation, with stream events on discrete pins, or coded
in the data stream.
The overall H and V zooming (HV_zoom) is restricted by
the input/output data rate relationships. With a safety
margin of 2% for running in and running out, the maximum
HV_zoom is equal to:
For example:
1. Input from decoder: 50 Hz, 720 pixel, 288 lines, 16-bit
data at 13.5 MHz data rate, 1 cycle per pixel; output:
8-bit data at 27 MHz, 2 cycles per pixel; the maximum
HV_zoom is equal to:
2. Input from X port: 60 Hz, 720 pixel, 240 lines, 8-bit
data at 27 MHz data rate (ITU 656), 2 cycles per pixel;
output via I + H port: 16-bit data at 27 MHz clock,
1 cycle per pixel; the maximum HV_zoom is equal to:
The video scaler receives its input signal from the video
decoder or from the expansion port (X port). It gets 16-bit
Y-CB-CR 4 : 2 : 2 input data at a continuous rate of
13.5 MHz from the decoder. Discontinuous data stream
can be accepted from the expansion port (X port),
normally 8-bit wide ITU 656 such as Y-CB-CR data,
accompanied by a pixel qualifier on XDQ.
The input data stream is sorted into two data paths, one for
luminance (or raw samples) and one for time multiplexed
chrominance CB and CR samples. An Y-CB-CR 4:1:1
input format is converted to 4 : 2 : 2 for the horizontal
prescaling and vertical filter scaling operation.
The scaler operation is defined by two programming pages
A and B, representing two different tasks, that can be
applied field alternating or to define two regions in a field
(e.g. with different scaling range, factors and signal source
during odd and even fields).
Each programming page contains control:
For signal source selection and formats
For task handling and trigger conditions
For input and output acquisition window definition
For H-prescaler, V-scaler and H-phase scaling.
Raw VBI data is handled as a specific input format and
needs its own programming page (equals own task).
0.98
T_input_field
T_v_blanking
–
in_pixel
in_lines
×
out_cycle_per_pix
×
T_out_clk
×
--------------------------------------------------------------------------------------------------------------------------------------
×
0.98
20 ms
24
64
s
×
–
720
288
×
2
×
37 ns
×
--------------------------------------------------------
1.18
=
×
0.98
16.666 ms
22
64
s
×
–
720
240
×
1
×
37 ns
×
--------------------------------------------------------------
2.34
=
×
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 935273916518 | COLOR SIGNAL DECODER, PBGA156 |
| 935273916557 | COLOR SIGNAL DECODER, PBGA156 |
| 935268460118 | 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO5 |
| 935268459115 | 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO5 |
| 935268459118 | 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 935269304128 | 制造商:ST-Ericsson 功能描述:IC AUDIO CODEC W/TCH SCRN 48LQFP |
| 935269544557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY TDA9587-2US1-V1.3 |
| 935269987557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY TDA9587-1US1-V1.8 SUBBED TO 935269987557 |
| 935270713557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC CHP |
| 935270792551 | 制造商:NXP Semiconductors 功能描述:IC BUFF DVR TRI-ST 16BIT 56VFBGA |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。