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参数资料
| 型号： | EVAL-AD7401AEDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD7401 |
| 标准包装： | 1 |
| 系列： | iCoupler® |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 20M |
| 数据接口： | 串行 |
| 输入范围： | ±320 mV |
| 在以下条件下的电源（标准）： | 105mW @ 20MSPS |
| 工作温度： | -40°C ~ 125°C |
| 已用 IC / 零件： | AD7401A |
| 已供物品： | 板 |
AD7401A
Rev. C | Page 17 of 20
Z = one sample delay
MCLKOUT = modulators conversion bit rate
*/
Z = one sample delay
WORD_CLK = output word rate
*/
always @ (posedge mclk1 or posedge reset)
if (reset)
begin
/*initialize acc registers on reset*/
acc1 <= 0;
acc2 <= 0;
acc3 <= 0;
end
else
begin
/*perform accumulation process*/
acc1 <= acc1 + ip_data1;
acc2 <= acc2 + acc1;
acc3 <= acc3 + acc2;
end
always @ (posedge word_clk or posedge reset)
if(reset)
begin
acc3_d2 <= 0;
diff1_d <= 0;
diff2_d <= 0;
diff1 <= 0;
diff2 <= 0;
diff3 <= 0;
end
else
begin
diff1 <= acc3 - acc3_d2;
diff2 <= diff1 - diff1_d;
diff3 <= diff2 - diff2_d;
acc3_d2 <= acc3;
diff1_d <= diff1;
diff2_d <= diff2;
end
/*DECIMATION STAGE (MCLKOUT/ WORD_CLK)
*/
always @ (negedge mclk1 or posedge reset)
if (reset)
word_count <= 0;
else
word_count <= word_count + 1;
/* Clock the Sinc output into an output
register
always @ (word_count)
word_clk <= word_count[7];
/*DIFFERENTIATOR ( including decimation
stage)
Perform the differentiation stage (FIR) at a
lower speed.
WORD_CLK
DATA
DIFF3
07
33
2-
02
9
Figure 29. Clocking Sinc Output into an Output Register
WORD_CLK
ACC3
DIFF1
DIFF3
+
–
+
–
DIFF2
Z–1
–
+
–
Z–1
0
733
2-
0
28
WORD_CLK = output word rate
*/
always @ (posedge word_clk)
begin
Figure 28. Differentiator
DATA[15] <= diff3[23];
DATA[14] <= diff3[22];
DATA[13] <= diff3[21];
DATA[12] <= diff3[20];
DATA[11] <= diff3[19];
DATA[10] <= diff3[18];
DATA[9]
<= diff3[17];
DATA[8]
<= diff3[16];
DATA[7]
<= diff3[15];
DATA[6]
<= diff3[14];
DATA[5]
<= diff3[13];
DATA[4]
<= diff3[12];
DATA[3]
<= diff3[11];
DATA[2]
<= diff3[10];
DATA[1]
<= diff3[9];
DATA[0]
<= diff3[8];
end
endmodule
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7401EB | 制造商:AD 制造商全称:Analog Devices 功能描述:Isolated Sigma-Delta Modulator |
| EVAL-AD7401EDZ | 功能描述:BOARD EVALUATION FOR AD7401 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:iCoupler® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD74111EBZ | 功能描述:BOARD EVAL FOR AD74111 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-AD74122EB-U1 | 制造商:Analog Devices 功能描述:- Bulk |
| EVAL-AD7414/15EB | 制造商:AD 制造商全称:Analog Devices 功能描述:【0.5C Accurate, 10-Bit Digital Temperature Sensors in SOT-23 |
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