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參數(shù)資料
| 型號： | SAA7712 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Sound effects DSP |
| 中文描述： | DSP的音效 |
| 文件頁數(shù)： | 3/44頁 |
| 文件大?。?/td> | 178K |
| 代理商： | SAA7712 |
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1999 Aug 05
3
Philips Semiconductors
Preliminary specification
Sound effects DSP
SAA7712H
1
FEATURES
1.1
Hardware features
Digital Signal Processor (DSP) core:
– 18 bits data width, 12 bits coefficient width
– SeparateX, Y and P memories(both384 bytesword
XRAM and YRAM, 3 kbytes word PROM)
– 1 kbytes delay line memory suited for Dolby Pro
Logic Surround.
Inputs:
– 2 slave 18-bit digital stereo inputs: I
2
S-bus and
LSB-justified serial formats
– 2 master 18-bit digital stereo inputs: I
2
S-bus and
LSB-justified serial formats.
Outputs:
– 4 DACs with 4-times oversampling and noise
shaping, fed to 4 output pins and configurable from
the DSP program, as left, right, front and surround
channels of a Dolby Pro Logic Surround system
– 2 master 18-bit digital stereo outputs: I
2
S-bus and
LSB-justified serial formats.
4-channel 5-band or 2-channel 10-band
I
2
C-bus controlled parametric equalizer
I
2
C-bus microcontroller interface for:
– Access to full X and Y memory space
– Control of hardware settings: selectors,
programmable clock generations, etc.
Controllable Phase-Locked Loop (PLL) to generate the
high frequency DSP clock from common fundamental
oscillator crystal
3.3 V process with 3.3 or 5 V digital periphery:
– 3.3 or 5 V I
2
S-bus and I
2
C-bus microcontroller
interfacing.
Operating temperature range from 0 to 70
°
C.
1.2
Dolby Pro Logic Surround/Dolby 3 stereo:
Trademark of Dolby Laboratories Licensing Corporation
Noise generation:
A pink noise generator is included
for installation of the Dolby Pro Logic/Dolby 3 stereo
mode
Hall/Matrix Surround:
When no Dolby Pro Logic
Surround source material is available then this mode
can be used to produce a signal in the surround channel
Incredible Surround (222-IS):
This algorithm expands
the stereo width (stereo expander). This is intended to
be used when the 2 speakers are placed close together
(TV set and Midi set).
Robust Incredible Surround (222-RIS):
Same as
incredible surround only an alternative algorithm
3D Surround (422) or Incredible Virtual Surround:
Dolby Pro Logic Surround reproduced by 2 speakers
(L and R)
IS-3D Surround (422-IS):
Same as 3D Surround (422)
only with extra stereo width expander on left and right
RIS-3D Surround (422-RIS):
Same as IS-3D Surround
(422) with alternative algorithm
3D Surround (423) or Incredible Virtual Surround:
Dolby Pro Logic Surround reproduced by 3 speakers
(L, C and R)
IS-3D Surround (423-IS):
Same as 3D Surround (423)
only with extra stereo width expander on left and right
RIS-3D Surround (423-RIS):
Same as IS-3D Surround
(423-IS) with alternative algorithm
Software features
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SAA7712H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Sound effects DSP |
| SAA7715 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Signal Processor |
| SAA7715H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Signal Processor |
| SAA7724H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Car radio digital signal processor |
| SAA7740 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Audio Processing IC DAPIC |
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