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| 型号： | THS1206CDA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封装： | GREEN, PLASTIC, TSSOP-32 |
| 文件页数： | 14/43页 |
| 文件大小： | 722K |
| 代理商： | THS1206CDA |
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THS1206
SLAS217H – MAY 1999 – REVISED JULY 2003#
www.ti.com
21
FIFO DESCRIPTION
In order to facilitate an efficient connection to today’s processors, the THS1206 is supplied with a FIFO. This integrated
FIFO enables a problem-free processing of data with today’s processors. The FIFO is provided as a flexible circular buffer.
The circular buffer integrated in the THS1206 can store up to 16 conversion values. Therefore, the amount of interrupts
to be served by a processor can be reduced significantly.
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Read Pointer
Trigger Pointer
Write Pointer
Data in FIFO
Free
Figure 29. Circular Buffer
The converted data of the THS1206 is automatically written into the FIFO. To control the writing and reading process, a
write pointer, a read pointer and a trigger pointer are used. The read pointer always shows the location which is read next.
The write pointer indicates the location which contains the last written sample. With a selection of multiple analog input
channels, the converted values are written in a predefined sequence to the circular buffer (autoscan mode). In this way,
the channel information for the reading processor is continually maintained.
The FIFO can be programmed through the control register of the ADC. The user has the ability to select a specific trigger
level according to Table 13 in order to choose the configuration which best fits the application. The FIFO provides the signal
DATA_AV, which signals the processor to read the amount of data equal to the trigger level selected in Table 13. The signal
DATA_AV becomes active when the trigger condition is satisfied. The trigger condition is satisfied when as many values
as selected for the trigger level are written into the FIFO.
The signal DATA_AV could be connected to an interrupt input of a processor. In every interrupt service routine call, the
processor must read the amount of data equal to the trigger level from the ADC. The first data represents the first channel
according to the autoscan mode, which is shown in Table 10. The channel information is therefore always maintained.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS1206CDA | 制造商:Texas Instruments 功能描述:12BIT ADC 6MSPS CMOS SMD 1206 制造商:Texas Instruments 功能描述:12BIT ADC, 6MSPS CMOS, SMD, 1206 制造商:Texas Instruments 功能描述:12BIT ADC, 6MSPS CMOS, SMD, 1206; Resolution (Bits):12bit; Sampling Rate:6MSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:36mA; Digital IC Case Style:TSSOP; No. of Pins:32; Input ;RoHS Compliant: Yes |
| THS1206CDA | 制造商:Texas Instruments 功能描述:12 bit simultaneous sampling analog/digi |
| THS1206CDAG4 | 功能描述:模数转换器 - ADC 12-Bit 6 MSPS Quad Channel RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| THS1206CDAR | 功能描述:模数转换器 - ADC 12-Bit 6 MSPS Quad Channel RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| THS1206CDARG4 | 功能描述:模数转换器 - ADC 12-Bit 6 MSPS Quad Channel RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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