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參數(shù)資料
| 型號： | CXD2720Q |
| 廠商： | Sony Corporation |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Single-Chip Digital Signal Processor for Karaoke(卡拉OK單片數(shù)字信號處理器) |
| 中文描述： | 單芯片數(shù)字信號處理器的卡拉OK（卡拉OK單片數(shù)字信號處理器） |
| 文件頁數(shù)： | 9/40頁 |
| 文件大?。?/td> | 431K |
| 代理商： | CXD2720Q |
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CXD2720Q
Analog Characteristics
(AV
D
0 to 5 = V
DD
0 to 3 = XV
DD
= 5.0V, AV
S
0 to 5 = V
SS
0 to 7 = XV
SS
= 0.0V, Ta = 25°C,
DSP: each function = OFF, gain = 1)
[1] ADC + DAC connection total characteristics
The measurement circuit in Figure 1-1 is used. Unless otherwise indicated, the measurement conditions are as
given below.
Input signal ...1.0Vrms, 1kHz
fs....................44.1kHz
Rin.................0
Item
S/N ratio
THD + N
Dynamic range
Channel separation
Level difference between
channels
Analog full-scale input level
ADC input impedance
Analog current consumption
1.0Vrms, EIAJ (with “A” weighting filter)
1.0Vrms, EIAJ
0.5Vrms, EIAJ
EIAJ
Only ADC characteristics using DAC1,
EIAJ
Only ADC characteristics using DAC1
Rin = 0
Rin = 22k
80
88
0.016
0.012
92
108
0.05
1.26
2.06
34.6
21
0.03
Measurement conditions
Min.
Typ.
Max.
1
Analog input level which outputs digital full scale.
An optional analog input signal level Vin (Vrms) of 1.26Vrms or more can be set in digital full scale by the
measurement circuit external resistor Rin.
The calculation formula for external resistor Rin is:
Rin = 27.5
×
Vin – 34.6 [k
]......(1)
However, THD + N characteristics deteriorate for full-scale output as shown in Graph 1, so use of up to 80%
(when Rin = 0
, 0.8
×
1.26 (Vrms) = 1.0 (Vrms)
→
“
analog full scale”) of the analog signal level is recommended
for digital full-scale output.
In this case, the Rin calculation formula is the same as formula (1), except that Vin becomes 1.25
×
Vin.
Note that this change causes the output level after ADC + DAC to change.
Most of the above specifications are measurement values for analog full scale.
Unit
dB
%
dB
dB
dB
Vrms
k
mA
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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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