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參數(shù)資料
| 型號： | PNX8510 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Analog companion chip |
| 中文描述： | 模擬伴隨芯片 |
| 文件頁數(shù)： | 32/92頁 |
| 文件大?。?/td> | 3064K |
| 代理商： | PNX8510 |
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Philips Semiconductors
PNX8510/11
Analog companion chip
Product data
Rev. 04 – 12 January 2004
32 of 92
9397 750 12612
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
secondary audio channel usually carries the audio belonging to the record
(secondary) video channel. Because they might originate from different sources, the
two interfaces are operated by independent clocks.
Mute on/off is programmable by a register setting.
Table 19
describes the expected
audio performance.
The audio path has three general blocks: input, interpolation, and DAC.
The input is, by default, a 24-bit I
2
S interface. However, it can be programmed to
accept other formats.
The interpolator scales, filters and oversamples the incoming data by 64 x its
sampling frequency. The result goes to a Noise Shaper, which shifts in-band noise
to frequencies well above the audio spectrum. This provides a very high
signal-to-noise ratio.
Finite Impulse Response DACs convert the 1-bit data stream to analog output
voltage.
7.3.1
Audio interface operation
The audio interfaces can be operated in either slave or master mode:
In slave mode, all required clocks (System CLK, SCK and WS) must be generated
externally and must be synchronous with each other.
In master mode, the PNX8510/11 only gets the System CLK and generates SCK
and WS clocks synchronously to the applied System CLK. In this mode, System
CLK is equal to 128 x Fs where Fs is the audio sampling frequency.
Table 19:
Parameter
Audio performance
QFP100
Dynamic range
85dB
S/(N+Disto.)
>85dB
Fig 23. Audio path block diagram
MDB651
FIR-DAC-L
Σ
NOISE
SHAPER
Σ
NOISE
SHAPER
INTERPOLATOR
LEFT/RIGHT
INTERPOLATOR
LEFT/RIGHT
FIR-DAC-R
FIR-DAC-L
FIR-DAC-R
PRIMARY
I
S-BUS
SECONDARY
I
S-BUS
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| PNX8511 | Analog companion chip |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PNX8510HW/B1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Analog companion chip |
| PNX8511 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Analog companion chip |
| PNX8511HW/B1 | 功能描述:視頻 IC ANALOG BACKEND COMPANION 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 |
| PNX8511HW/B1,557 | 功能描述:視頻 IC ANALOG BACKEND 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 |
| PNX8526 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Programmable source decoder with integrated peripherals |
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