参数资料
型号: CS5364-CQZ
厂商: Cirrus Logic Inc
文件页数: 21/42页
文件大小: 0K
描述: IC ADC 4CH 114DB 216KHZ 48-LQFP
标准包装: 250
位数: 24
采样率(每秒): 216k
数据接口: 串行
转换器数目: 1
功率耗散(最大): 580mW
电压电源: 模拟和数字
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
输入数目和类型: 4 个差分,单极
产品目录页面: 755 (CN2011-ZH PDF)
配用: CDB5364-ND - EVALUATION BOARD FOR CS5364
其它名称: 598-1088
28
DS625F4
CS5364
4.10
Analog Connections
The analog modulator samples the input at half of the internal Master Clock frequency, or 6.144 MHz nom-
inally. The digital filter will reject signals within the stopband of the filter. However, there is no rejection of
input signals that are at (N X 6.144 MHz) the digital passband frequency, where n=0,1,2.... Refer to
Figure 15, which shows the suggested filter that will attenuate any noise energy at 6.144 MHz in addition to
providing the optimum source impedance for the modulators. The use of capacitors that have a large volt-
age coefficient (such as general-purpose ceramics) must be avoided since these can degrade signal linear-
ity. COG capacitors are recommended for this application. For additional configurations, refer to Cirrus
Application Note AN241.
Figure 15. Recommended Analog Input Buffer
VQ
+
634
Ω
634
Ω
91
Ω
91
Ω
+
-
2700 pF
470 pF
COG
10 uF
ADC AIN+
ADC AIN -
AIN +
AIN -
COG
100 k
Ω
10 k
Ω
10 k
Ω
100 k
Ω
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