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参数资料
| 型号： | CDB5464U |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 19/46页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR CS5464 ADC |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | CS5464 |
| 主要属性： | 电能表 |
| 次要属性： | 图形用户接口，SPI? 和 USB 接口 |
| 已供物品： | 板，线缆，软件 |
| 产品目录页面： | 754 (CN2011-ZH PDF) |
| 相关产品： | CS5464-ISZR-ND - IC ENERGY METERING 1PHASE 28SSOP 598-1194-5-ND - IC ENERGY METERING 1PHASE 28SSOP 598-1193-5-ND - IC PWR/ENERGY METER 3CH 28-SSOP |
| 其它名称： | 598-1554 CDB-5464U |
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CS5464
6. SETTING UP THE CS5464
6.1 Clock Divider
The internal clock to the CS5464 needs to operate
around 4 MHz. However, by using the internal clock di-
vider, a higher crystal frequency can be used. This is im-
path within a channel, a phase matching filter (PMF) is
applied to the other path within that channel. The PMF
filter matches the amplitude and phase response of the
HPF in the band of interest, but passes DC.
portant when driving an external microcontroller
requiring a faster clock and using the CPUCLK output.
K is the divide ratio from the crystal input to the internal
clock and is selected with Configuration register ( Con-
fig ) bits K[3:0]. It has a range of 1 to 16. A value of zero
results in a setting of 16.
VHPF
0
0
1
1
IHPF
0
1
0
1
Filter Configuration
No filter on Voltage or Current
HPF on Current, PMF on Voltage
HPF on Voltage, PMF on Current
HPF on Current and Voltage
6.2 CPU Clock Inversion
By default, CPUCLK is inverted from XIN. Setting Con-
figuration register bit iCPU removes this inversion. This
can be useful when one phase adds more noise to the
system than the other.
6.3 Interrupt Pin Behavior
The behavior of the INT pin is controlled by the IMODE
and IINV bits in the Configuration register as shown.
Table 3. High-pass Filter Configuration
6.6 Cycle Count
Low-rate calculations, such as average power and RMS
voltage and current integrate over several ( N ) output
word rate (OWR) samples. The duration of this averag-
ing window is set by the Cycle Count ( N ) register. By de-
fault, Cycle Count is set to 4000 (1 second at output
word rate [OWR] of 4000 Hz). The minimum value for
Cycle Count is 10.
IMODE
0
0
1
IINV
0
1
0
INT Pin
Active-low Level
Active-high Level
Low Pulse
6.7 Energy Pulse Outputs
By default, E1 outputs active energy, E3, reactive ener-
gy, and E2, the sign of both active and reactive energy.
(See Figure 2. Timing Diagram for E1, E2, and E3 on
page 13.)
Three pairs of bits in the Mode Control ( Modes ) register
control the operation of these outputs. These bits are
1
1
High Pulse
named E1MODE[1:0], E2MODE[1:0], and
E3MODE[1:0]. Some combinations of these bits over-
Table 1. Interrupt Configuration
If IMODE = 1, the duration of the INT pulse will be two
DCLK cycles, where DCLK = MCLK/K.
6.4 Current Input Gain Ranges
Control register bits I1gain (I2gain) select the input
range of the current inputs.
ride others, so read the following paragraphs carefully.
The E2 pin can output energy sign, apparent energy, or
energy channel in use (1 or 2). Table 4 lists the func-
tions of E2 as controlled by E2MODE[1:0] in the Modes
register .
Note: E2MODE[1:0]=3 is a special mode.
I1gain, I2gain Maximum Input Gain
0 ±250 mV 10x
1 ±50 mV 50x
Table 2. Current Input Gain Ranges
E2MODE1 E2MODE0
0 0
0 1
1 0
1 1
E2 output
Energy Sign
Apparent Energy
Channel in Use
Enable E1MODE
6.5 High-pass Filters
Mode Control ( Modes ) register bits VHPF and IHPF ac-
tivate the HPF in the voltage and current paths, respec-
tively. Each energy channel has separate VHPF and
IHPF bits. When a high-pass filter is enabled in only one
DS682F3
Table 4. E2 Pin Configuration
The E3 pin can output reactive energy, power fail mon-
itor status, voltage sign, or apparent energy. Table 5
19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CDB5464U-Z | 制造商:Cirrus Logic 功能描述:EVAL BD PB-FREE DEMO BOARD FOR CS5464 - Boxed Product (Development Kits) 制造商:Cirrus Logic 功能描述:Eval Board |
| CDB5466U | 功能描述:数据转换 IC 开发工具 Eval Bd F/Residental Pow-Meter Apps 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 |
| CDB5466U-Z | 制造商:Cirrus Logic 功能描述:PB-FREEEVAL BOARD FOR CS5466 WITH USB - Bulk |
| CDB5467U | 功能描述:数据转换 IC 开发工具 Eval Bd 4-Ch Sngl-Phs Pow/Energy 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 |
| CDB5471 | 制造商:Cirrus Logic 功能描述:Tools Development kit Kit Con |
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