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參數(shù)資料
| 型號(hào)： | CDB4328 |
| 廠商： | Cirrus Logic, Inc. |
| 英文描述： | 18-Bit, Stereo D/A Converter for Digital Audio |
| 中文描述： | 18位，立體聲D / A的數(shù)字音頻轉(zhuǎn)換器 |
| 文件頁數(shù)： | 14/31頁 |
| 文件大?。?/td> | 831K |
| 代理商： | CDB4328 |
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capacitor, where the polarity of each packet is
controlled by the 1-bit signal. The result is a
1-bit D/A conversion process that is very insensi-
tive to clock jitter. This is a major improvement
over previous generations of 1-Bit D/A convert-
ers where the magnitude of charge in the D/A
process is determined by switching a current ref-
erence for a period of time defined by periods of
the master clock.
The final stage of the CS4328 is made up of a
5th order switched-capacitor low pass filter and a
2nd order continuous time filter. The switched-
capacitor filter eliminates out-of-band energy re-
sulting from the noise shaping process
(Figure 25). The switched-capacitor stage scales
with the master clock signal being applied to the
CS4328. The final stage is a 2nd order continu-
ous time filter that eliminates high frequency
energy that appears at multiples of the 64
×
Fs
sample rate (Figure 26).
Figures 27-30 are computer simulations of the
combined response of the CS4328 digital and
analog filters with an input word rate of 48 kHz.
Figure 27 shows the individual and combined
phase response of the CS4328 filters. Notice the
digital filter equalization of the analog filter to
produce a linear phase response.
Figures 28-30 are plots of the CS4328 magni-
tude response.
0
2
4
6
8
10
12
14
16
18
20
Frequency (kHz)
-20
-16
-12
-8
-4
0
4
8
12
16
20
P
Analog Filter
Digital Filter
Total Phase
Figure 27. Deviation From Linear Phase
f (kHz)
24
64Fs
(dB)
Figure 25. Spectrum After Switched-Capacitor Filter
f (kHz)
24
(dB)
Figure 26. Spectrum After Continuous Time Filter
CS4328
14
DS62F3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CDB4329 | 20-Bit, Stereo D/A Converter for Digital Audio |
| CDB4340A | 24-Bit, 192 kHz Stereo DAC for Audio |
| CDB4340 | 24-Bit, 96 kHz Stereo DAC for Audio |
| CDB4341A | 24-Bit, 192 kHz Stereo DAC with Volume Control |
| CDB4341 | 24-Bit, 96 kHz Stereo DAC with Volume Control |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CDB4329 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:20-Bit, Stereo D/A Converter for Digital Audio |
| CDB4334 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd 8Pin 24-Bit 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4338 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd 8Pin 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4339 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd 8Pin 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4340 | 功能描述:音頻 IC 開發(fā)工具 Eval Bd 101dB 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
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