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参数资料
| 型号： | CDB4365 |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 25/52页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD FOR CS4365 |
| 标准包装： | 1 |
| DAC 的数量： | 6 |
| 位数： | 24 |
| 采样率（每秒）： | 192k |
| 数据接口： | 串行 |
| DAC 型： | 电压 |
| 工作温度： | -40°C ~ 85°C |
| 已供物品： | 板，缆线，CD |
| 已用 IC / 零件： | CS4365 |
| 相关产品： | CS4365-DQZR-ND - IC DAC 6CH 114DB 192KHZ 48-LQFP CS4365-DQZ-ND - IC DAC 6CH 114DB 192KHZ 48-LQFP 598-1060-ND - IC DAC 6CH 114DB 192KHZ 48LQFP |
| 其它名称： | 598-1779 |
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CS4365
4.5
4.6
Interpolation Filter
To accommodate the increasingly complex requirements of digital audio systems, the CS4365 incorporates
selectable interpolation filters for each mode of operation. A “fast” and a “slow” roll-off filter is available in
each of Single, Double, and Quad-Speed modes. These filters have been designed to accommodate a va-
riety of musical tastes and styles. The FILT_SEL bit is used to select which filter is used (see the “Filter
When in Hardware Mode, only the “fast” roll-off filter is available.
Filter specifications can be found in Section , and filter response plots can be found in Figures 24 to 47 .
De-Emphasis
The CS4365 includes on-chip digital de-emphasis filters. The de-emphasis feature is included to accommo-
date older audio recordings that utilize pre-emphasis equalization as a means of noise reduction. Figure 16
shows the de-emphasis curve. The frequency response of the de-emphasis curve will scale proportionally
with changes in sample rate, Fs if the input sample rate does not match the coefficient which has been se-
lected.
In Software Mode the required de-emphasis filter coefficients for 32 kHz, 44.1 kHz, or 48 kHz are selected
via the de-emphasis control bits.
In Hardware Mode only the 44.1 kHz coefficient is available (enabled through the M2 pin). If the input sam-
ple rate is not 44.1 kHz and de-emphasis has been selected then the corner frequencies of the de-emphasis
filter will be scaled by a factor of the actual Fs over 44,100.
Gain
dB
T1=50 μs
0dB
T2 = 15 μs
-10dB
F1
3.183 kHz
F2
10.61 kHz
Frequency
Figure 16. De-Emphasis Curve
DS670F2
25
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| CDB4382A | 功能描述:音频 IC 开发工具 Eval Bd 114dB 192kHz 8-Ch DAC w/DSD RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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| CDB4384 | 功能描述:音频 IC 开发工具 Eval Bd 8-Ch DAC w/DSD RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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