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| 型号： | CDK5571 |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 15/34页 |
| 文件大小： | 0K |
| 描述： | CDB5571 W/CAPTURE PLUS 2 SYSTEM |
| 标准包装： | 1 |
| 系列： | CapturePLUS™II |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 100k |
| 数据接口： | 串行 |
| 输入范围： | 2.4 ~ 4.2 V |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | CS5571 |
| 已供物品： | 2 个板，线缆，CD，电源 |
| 产品目录页面： | 756 (CN2011-ZH PDF) |
| 相关产品： | CS5571-ISZR-ND - IC ADC 16BIT DELTA-SIGMA 24-SSOP 598-1266-5-ND - IC ADC 16BIT 1CH 100KSPS 24SSOP |
| 其它名称： | 598-1279 CDK5571-1 |
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3/25/08
10:56
CS5571
3.3 Voltage Reference
The voltage reference for the CS5571 can range from 2.4 volt to 4.2 volts. A 4.096 volt reference is re-
quired to achieve the specified signal-to-noise performance. Figure 6 and Figure 7 illustrate the connec-
tion of the voltage reference with either a single +5 V analog supply or with ±2.5 V.
For optimum performance, the voltage reference device should be one that provides a capacitor connec-
tion to provide a means of noise filtering, or the output should include some type of bandwidth-limiting fil-
ter.
Some 4.096 volt reference devices need only 5 volts total supply for operation and can be connected as
shown in Figure 6 or Figure 7 . The reference should have a local bypass capacitor and an appropriate
output capacitor.
Some older 4.096 voltage reference designs require more headroom and must operate from an input volt-
age of 5.5 to 6.5 volts. If this type of voltage reference is used ensure that when power is applied to the
system, the voltage reference rise time is slower than the rise time of the V1+ and V1- power supply volt-
age to the converter. An example circuit to slow the output startup time of the reference is illustrated in
5.5 to 15 V
2k
10 μ F
VIN
VOUT
4.096 V
GND
Refer to V1- and VREF1 pins.
Figure 5. Voltage Reference Circuit
3.4 Analog Input
The analog input of the converter is single-ended with a full-scale input of ± 2.048 volts, relative to the
ACOM pin.. This is illustrated in Figure 6 and Figure 7 . These diagrams also illustrate a differential buffer
amplifier configuration for driving the CS5571.
The capacitors at the outputs of the amplifiers provide a charge reservoir for the dynamic current from the
A/D inputs while the resistors isolate the dynamic current from the amplifier. The amplifiers can be pow-
ered from higher supplies than those used by the A/D but precautions should be taken to ensure that the
op-amp output voltage remains within the power supply limits of the A/D, especially under start-up condi-
tions.
DS768PP1
15
相关PDF资料 |
PDF描述 |
|---|---|
| CDK5581 | KIT BOARD FOR CDB5581 ADC |
| CF1176-000 | SHIELD TERMINATOR |
| SMS4SE4K9 | 集管和线壳 4P QIKMATE PIN STRT PC BOARDMOUNT |
| CF6147-000 | CABLE TERMINATION |
| CF6153-000 | HEAT SHRINK TUBING |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CDK5571-1 | 制造商:Cirrus Logic 功能描述:- Bulk |
| CDK5571-1/FAE | 制造商:Cirrus Logic 功能描述:- Bulk |
| CDK5571-2 | 功能描述:CDB5570-2 W/CAPTURE PLUS 2 SYSTM RoHS:是 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| CDK5580 | 功能描述:数据转换 IC 开发工具 KIT CDB558 w/ Capture Plus II RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| CDK5581 | 功能描述:数据转换 IC 开发工具 KIT CDB558 w/ Capture Plus II RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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