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參數(shù)資料
| 型號(hào)： | CXD2720Q |
| 廠商： | Sony Corporation |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | Single-Chip Digital Signal Processor for Karaoke(卡拉OK單片數(shù)字信號(hào)處理器) |
| 中文描述： | 單芯片數(shù)字信號(hào)處理器的卡拉OK（卡拉OK單片數(shù)字信號(hào)處理器） |
| 文件頁數(shù)： | 1/40頁 |
| 文件大?。?/td> | 431K |
| 代理商： | CXD2720Q |
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CXD2720Q
E96426-ST
Single-Chip Digital Signal Processor for Karaoke
Description
The CXD2720Q is a digital signal processor LSI for
Karaoke, suitable for use in LD/CD/CD-G/video CD
and the like.
A large capacity DRAM and AD/DA converters are
built in, and Karaoke functions such as key control,
microphone echo and voice canceling are contained
on a single chip.
Features
3-channel 1-bit AD converter and decimation filter
S/N ratio: 88 dB
THD + N: 0.016%
Filter pass band ripple:
Filter stop band attenuation: less than –41dB
(all characteristics are typical values)
2-channel 1-bit DA converter and oversampling
filter
S/N ratio: 98dB
THD + N: 0.006%
Filter pass band ripple:
Filter stop band attenuation: less than –41dB
(all characteristics are typical values)
In addition to analog input/output, 2-channel input/
2-channel output of digital input/output are provided.
The interface also supports a variety of formats.
128K-bit DRAM for key control and microphone
echo processing
less than ±0.5dB
less than ±0.2dB
Functions
Key controller pitch setting can be varied to a
maximum of ±1 octave with a precision of 14 bits
Microphone echo delay time can be varied to a
maximum of 185ms (when Fs = 44.1kHz)
Voice canceller supports settings other than center
by the panpot volume
Voice parametric equalizer
Voice pitch shifter
Mixing function to support sound multiplexing
software
Digital de-emphasis function
Structure
Silicon gate CMOS
Applications
LD/CD, compact music center, video games, etc.
Absolute Maximum Ratings
(Ta = 25°C, V
SS
= 0V)
V
SS
– 0.5 to +7.0
V
I
V
SS
– 0.5 to V
DD
+ 0.5 V
V
O
V
SS
– 0.5 to V
DD
+ 0.5 V
Supply voltage
Input voltage
Output voltage
Operating temperature
V
DD
V
Topr
–20 to +75
–55 to +150
°C
°C
Storage temperature Tstg
Recommended Operating Conditions
Supply voltage
Operating temperature
V
DD
4.5 to 5.5 (5.0 typ.)
V
Ta
–20 to +75
°C
Input/Output Capacitance
Input capacitance
Output capacitance
Input/output capacitance C
I/O
Measurement conditions: V
DD
= V
I
= 0V, F = 1MHz
C
IN
C
OUT
11 (max.)
11(max.)
9 (max.)
pF
pF
pF
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
100 pin QFP (Plastic)
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| CXD2721Q-1 | Single-Chip Digital Signal Processor for Karaoke |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2720Q-2 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2721Q-1 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Digital Signal Processor for Karaoke |
| CXD2724AQ-1 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2724AQ-3 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2728Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
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