参数资料
| 型号： | CS4382A-CQZ |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 19/50页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8CH 114DB 192KHZ 48LQFP |
| 标准包装： | 250 |
| 位数： | 24 |
| 数据接口： | 串行 |
| 转换器数目： | 8 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 680mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 托盘 |
| 输出数目和类型： | 16 电压，单极 |
| 采样率（每秒）： | 192k |
| 配用： | 598-1524-ND - BOARD EVAL FOR CS4382A DAC |
| 其它名称： | 598-1061 |
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26
DS618F2
CS4382A
4.8
Direct Stream Digital (DSD) Mode
In Stand-alone Mode, DSD operation is selected by holding DSD_EN(LRCK) high and applying the DSD
data and clocks to the appropriate pins. The M[2:0] pins set the expected DSD rate and MCLK ratio.
In Control Port Mode, the FM bits set the device into DSD Mode (DSD_EN pin is not required to be held
high). The DIF register then controls the expected DSD rate and MCLK ratio.
During DSD operation, the PCM related pins should either be tied low or remain active with clocks (except
LRCK in Stand-alone Mode). When the DSD related pins are not being used, they should either be tied static
low or remain active with clocks (except M3 in Stand-alone Mode).
4.9
Grounding and Power Supply Arrangements
As with any high-resolution converter, the CS4382A requires careful attention to power supply and ground-
ing arrangements if its potential performance is to be realized. The Typical Connection Diagram shows the
recommended power arrangements, with VA, VD, VLC, and VLS connected to clean supplies. If the ground
planes are split between digital ground and analog ground, the GND pins of the CS4382A should be con-
nected to the analog ground plane.
All signals, especially clocks, should be kept away from the FILT+ and VQ pins in order to avoid unwanted
coupling into the DAC.
4.9.1
Capacitor Placement
Decoupling capacitors should be placed as close to the DAC as possible, with the low-value ceramic ca-
pacitor being the closest. To further minimize impedance, these capacitors should be located on the same
layer as the DAC. If desired, all supply pins with similar voltage ratings may be connected to the same
supply, but a decoupling capacitor should still be placed on each supply pin.
Notes:
All decoupling capacitors should be referenced to analog ground.
The CDB4382A evaluation board demonstrates the optimum layout and power supply arrangements.
4.10
Analog Output and Filtering
The application note “Design Notes for a 2-pole Filter with Differential Input” discusses the second-order
Butterworth filter and differential-to-single-ended converter which was implemented on the CS4382A eval-
pensation for an external filter. Therefore, the DAC system phase and amplitude response will be dependent
on the external analog circuitry. The off-chip filter has been designed to attenuate the typical full-scale out-
put level to below 2 Vrms.
Figure 15 shows how the full-scale differential analog output level specification is derived.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS4382A-CQZR | 功能描述:音频数/模转换器 IC IC 114dB 192 kHz 8Ch DAC w/DSD supt RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| CS4382A-DQZ | 功能描述:音频数/模转换器 IC 8-Ch DAC 24-Bit 192kHz 114dB w/DSD RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| CS4382A-DQZR | 功能描述:音频数/模转换器 IC IC 114dB 192 kHz 8Chn DAC w/DSD supt. RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| CS4382A-EQZ | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:114 dB, 192 kHz 8-channel D/A Converter |
| CS4382A-EQZR | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:114 dB, 192 kHz 8-channel D/A Converter |
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