- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372113 > SAA7109A (NXP Semiconductors N.V.) HD-CODEC PDF資料下載
參數(shù)資料
| 型號(hào)： | SAA7109A |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | Codec |
| 英文描述： | HD-CODEC |
| 中文描述： | 高清解碼器 |
| 文件頁數(shù)： | 67/197頁 |
| 文件大?。?/td> | 983K |
| 代理商： | SAA7109A |
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頁當(dāng)前第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頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁
2004 Jun 29
67
Philips Semiconductors
Product specification
HD-CODEC
SAA7108AE; SAA7109AE
LPI mode
: In the linear phase interpolation mode
(YMODE = 0)twoneighbouringlinesofthesourcevideo
stream are added together, but weighted by factors
corresponding to the vertical position (phase) of the
target output line relative to the source lines. This linear
interpolation has a 6-bit phase resolution, which equals
64 intra line phases. It interpolates between two
consecutive input lines only. The LPI mode should be
applied for scaling ratios around 1 (down to
1
2
),
it must
be applied for vertical zooming
.
ACM mode
: The vertical Accumulation (ACM) mode
(YMODE = 1) represents a vertical averaging window
over multiple lines, sliding over the field. This mode also
generates phase correct output lines. The averaging
window length corresponds to the scaling ratio, resulting
in an adaptive vertical low-pass effect, to greatly reduce
aliasing artefacts. ACM can be applied for downscales
only from ratio 1 down to
1
64
. ACM results in a scale
dependent
DC gain amplification
, which has to be
precorrected by the BCS control of the scaler part.
The phase and scale controlling DTO calculates in 16-bit
resolution, controlled by parameters YSCY[15:0] B1H[7:0]
B0H[7:0]andYSCC[15:0]B3H[7:0]B2H[7:0],continuously
over the entire filed. A start offset can be applied to the
phase processing by means of the parameters
YPY3[7:0] to YPY0[7:0] in BFH[7:0] to BCH[7:0] and
YPC3[7:0] to YPC0[7:0]inBBH[7:0] to B8H[7:0].Thestart
phase covers the range of
255
32
to
1
32
lines offset.
By programming appropriate, opposite, vertical start
phase values (subaddresses B8H to BFH and
E8H to EFH) depending on odd/even field ID of the source
videostreamandA/Bpagecycle,frameIDconversionand
field rate conversion are supported (i.e. de-interlacing,
re-interlacing).
Figs 37 and 38 and Tables 26 and 27 describe the use of
the offsets.
Remark: The vertical start phase, as well as the
scaling ratio are defined independently for luminance
and chrominance channels, but must be set to the
same values in the actual implementation for accurate
4 : 2 : 2 output processing.
The vertical processing communicates on its input side
with the line FIFO buffer. The scale related equations are:
Scaling increment calculation for ACM and LPI mode,
downscale and zoom: YSCY[15:0] and YSCC[15:0]
BCS value to compensate DC gain in ACM mode
(contrast and saturation have to be set): CONT[7:0]
A5H[7:0] respectively SATN[7:0] A6H[7:0]
Nline_in
, or
9.3.3.3
Use of the vertical phase offsets
As shown in Section 9.3.1.3, the scaler processing may
run randomly over the interlaced input sequence.
Additionally the interpretation and timing between ITU 656
field ID and real-time detection by means of the state of
H sync at the falling edge of V sync may result in different
field ID interpretation.
A vertically scaled interlaced output also gets a larger
vertical sampling phase error, if the interlaced input fields
are processed, without regard to the actual scale at the
starting point of operation (see Fig.37).
The four events to be considered are illustrated in Fig.38.
In Tables 26 and 27
PHO
is a usable common phase
offset.
It should be noted that the equations in Fig.38 also
produce an interpolated output for the unscaled case, as
the geometrical reference position for all conversions is
the position of the first line of the lower field; see Table 26.
If there is no need for UP-LO and LO-UP conversion and
the input field ID is the reference for the back-end
operation, then it is UP-LO = UP-UP and LO-UP = LO-LO
and the
1
2
line phase shift (PHO + 16) that can be
skipped; this case is given in Table 27.
The SAA7108AE; SAA7109AE supports 4 phase offset
registers per task and component (luminance and
chrominance). The value of 20H represents a phase shift
of one line.
The registers are assigned to the following events;
e.g. subaddresses B8H to BBH:
B8H: 00 = input field ID 0, task status bit 0 (toggle
status, see Section 9.3.1.3)
B9H: 01 = input field ID 0, task status bit 1
BAH: 10 = input field ID 1, task status bit 0
BBH: 11 = input field ID 1, task status bit 1.
lower integer of
=
1024
Nline_out
×
lower integer of
Nline_out
64
×
=
lower integer of
YSCY[15:0]
64
×
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA7109AE | HD-CODEC |
| SAA7110A | Digital Multistandard Colour Decoder(數(shù)字多標(biāo)準(zhǔn)彩色譯碼器) |
| SAA7111A | Enhanced Video Input Processor EVIP |
| SAA7111AH | Enhanced Video Input Processor EVIP |
| SAA7111AHZ | GT 13C 13#16 SKT PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7109AE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:HD-CODEC |
| SAA7109AE/V1,518 | 功能描述:視頻 IC HD- VIDEO CODEC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7109AE/V1,557 | 功能描述:視頻 IC HD- VIDEO CODEC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7109AE/V1/G | 功能描述:視頻 IC PC CODEC (W/OUT MICROVISION) RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7109AE/V1/G,518 | 功能描述:視頻 IC SAA7109AE/LBGA156/REEL13DP//V1 RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。