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参数资料
| 型号： | DC575A |
| 厂商： | Linear Technology |
| 文件页数： | 29/48页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2410 |
| 软件下载： | QuikEval System |
| 设计资源： | DC575A Design File DC575A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 2 |
| 位数： | 24 |
| 采样率（每秒）： | 7.5 |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2410 |
| 已供物品： | 板 |
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LTC2410
35
APPLICATIO S I FOR ATIO
WU
U
Simultaneous Sampling with Two LTC2410s
One such application is synchronizing multiple LTC2410s,
see Figure 45. The start of conversion is synchronized to
the rising edge of CS. In order to synchronize multiple
LTC2410s, CS is a common input to all the ADCs.
To prevent the converters from autostarting a new con-
version at the end of data output read, 31 or fewer SCK
clock signals are applied to the LTC2410 instead of 32 (the
32nd falling edge would start a conversion). The exact
timing and frequency for the SCK signal is not critical
since it is only shifting out the data. In this case, two
LTC2410’s simultaneously start and end their conversion
cycles under the external control of CS.
Increasing the Output Rate Using Mulitple LTC2410s
A second application uses multiple LTC2410s to increase
the effective output rate by 4
×, see Figure 46. In this case,
four LTC2410s are interleaved under the control of sepa-
rate CS signals. This increases the effective output rate
from 7.5Hz to 30Hz (up to a maximum of 60Hz). Addition-
ally, the one-shot output spectrum is unfolded allowing
further digital signal processing of the conversion results.
SCK and SDO may be common to all four LTC2410s. The
four CS rising edges equally divide one LTC2410 conver-
sion cycle (7.5Hz for 60Hz notch frequency). In order to
synchronize the start of conversion to CS, 31 or less SCK
clock pulses must be applied to each ADC.
Both the synchronous and 4
× output rate applications use
the external serial clock and single cycle operation with
reduced data output length (see Serial Interface Timing
Modes section and Figure 6). An external oscillator clock
is applied commonly to the FO pin of each LTC2410 in
order to synchronize the sampling times. Both circuits
may be extended to include more LTC2410s.
Figure 45. Synchronous Conversion—Extendable
31 OR LESS CLOCK CYCLES
CS
SCK1
SCK2
2410 F45
SDO1
SDO2
31 OR LESS CLOCK CYCLES
LTC2410
#1
VCC
REF+
REF –
IN+
IN –
GND
FO
SCK
SDO
CS
SCK2
SCK1
CS
SDO1
SDO2
LTC2410
#2
VCC
REF+
REF –
IN+
IN –
GND
FO
SCK
SDO
CS
CONTROLLER
EXTERNAL OSCILLATOR
(153,600HZ)
VREF+
VREF–
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相关代理商/技术参数 |
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| DC579A | 功能描述:BOARD DAC LTC2600 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:QuikEval™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
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| DC57F10W06P6 | 制造商:Conesys 功能描述:CONN 26482 CIRC PIN 6 POS CRMP ST CBL MNT - Bulk |
| DC57F10W06P6-CO | 制造商:Conesys 功能描述:CONN 26482 CIRC PIN 6 POS CRMP ST CBL MNT - Bulk |
| DC57F10W06PN | 制造商:Conesys 功能描述:CONN 26482 CIRC PIN 6 POS CRMP ST CBL MNT - Bulk |
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