參數(shù)資料
型號(hào)： SAA7215HS
廠商： NXP Semiconductors N.V.
英文描述： Integrated MPEG AVGD decoders
中文描述： 集成的MPEG解碼器AVGD
文件頁(yè)數(shù)： 3/28頁(yè)
文件大小： 101K
代理商： SAA7215HS
2000 Jan 31
3
Philips Semiconductors
Preliminary specification
Integrated MPEG AVGD decoders
SAA7215; SAA7216; SAA7221
Vertical scaling with fixed factors 0.5, 0.75, 1 or 2;
factor 0.5 realizes picture shrink. Factor 2 can be used
for up-conversion of pictures with 288 (240) lines or
less; factor 0.75 is used for letterbox presentation.
Horizontal and vertical scaling can be combined to scale
pictures to
1
4
of their original size, thus freeing up
screen space for graphic applications like electronic
program guides
Non full screen MPEG pictures can be displayed in a
box of which position and background colour are
adjustable by the external microcontroller; structured
background is available as part of the graphic features
Nominal video input buffer size for MP at ML 2.7-Mbit
Video output may be slaved to internally (master)
generated or externally (slave) supplied
HV synchronization signals or CCIR-656 contained
synchronization signals. The position of active video is
programmable. Display phase is not affected by MPEG
timebase changes.
Decoding and presentation can be independently
handled under CPU control
Various trick modes under control of external
microcontroller:
– Freeze field/frame on I- or P-frames; restart on
I-picture
– Freeze field on B-frames; restart at any moment
– Scanning and decoding of I- or I- and P-frames in a
IBP sequence
– Single step mode
– Repeat/skip field for time base correction
– Repeat/skip frame for display parity integrity.
Synchronization modes: DTS controlled, DTS free
running, software controlled, buffer controlled
DTS register can be set via external controller;
programmable processing delay compensation.
MPEG-2 audio features
Supported audio sampling frequencies:
48, 44.1, 32, 24, 22.05 and 16 kHz
Independentchannelvolumecontrolandprogrammable
inter-channel crosstalk through a baseband audio
processing unit
MPEG audio decoder
– Decoding of 2 channels, layer I and II MPEG-1 audio
and low sampling frequency extension of MPEG-2
– Supports for mono, stereo, intensity stereo and dual
channel mode
– CRC error detection with automatic mute
– Constant and variable bit rates up to 448 kbit/s
– Selectable output channel in dual channel mode
– Storage of last 54 bytes in ancillary data field
– Dynamic range control at output.
Muting possibility via external controller; automatic
muting in case of errors
Generation of ‘beeps’ with programmable tone height,
duration and amplitude
Linear PCM decoding
– Support for up to 8 channels linear PCM elementary
audio streams
– Supports for 8, 16, 20 and 24 bit/sample
– Supports for bit rates up to 6.144 Mbit/s
– 96 kHz LPCM samples will be mapped to a 48 kHz
multi-channel format
– Volume control for linear PCM samples in three
steps:
6,
12 and
18 dB.
Burst-formatting for interconnection with an external
multi-channel decoder
– AC-3 elementary streams (IEC1937)
– MPEG-2 multi-channel streams in ES or PES format
– Output via the digital audio output or the IEC 958
output.
Output stage
– Global control for volume and balance
– Serial multi-channel digital audio output with 16, 18,
20 or 22 bits per sample, compatible either to I
2
S or
Japanese formats; output can be set to high
impedance mode via the external controller
– IEC958 (Serial SPDIF) audio output; output can be
set to high impedance mode
– Clock output 256 or 384
×
f
s
for external
DA converter or clock input; output can be set to high
impedance mode.
Audio FIFO in external SDRAM; programmable buffer
size, at least 64 kbit is available
Synchronization modes: PTS controlled, PTS free
running, software controlled, buffer controlled
PTS register can be set via external controller;
programmable processing delay compensation.
Background colour
24 bit YC
b
C
r
colour.
相關(guān)PDF資料
PDF描述
SAA7216 Integrated MPEG2 AVG Decoder(綜合MPEG音頻視頻圖表譯碼器)
SAA7219HS MPEG2 Transport RISC processor
SAA7280P Terrestrial Digital Sound Decoder
SAA7282GP Terrestrial Digital Sound Decoder TDSD2
SAA7282 Terrestrial Digital Sound Decoder TDSD2
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7215HS/C2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7216 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7216HS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7216HS/C1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7219 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG2 Transport RISC processor
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