- 您现在的位置：买卖IC网 > PDF目录20624 > CS5467-ISZR (Cirrus Logic Inc)IC ENERGY METERING 1PHASE 28SSOP PDF资料下载
参数资料
| 型号： | CS5467-ISZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 18/46页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 28SSOP |
| 标准包装： | 1,000 |
| 输入阻抗： | 30 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 0.8V |
| 电压 - 低输入/输出： | 0.2V |
| 电流 - 电源： | 3.5mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
| 配用： | 598-1555-ND - BOARD EVAL FOR CS5467 ADC |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页
CS5467
5. PIN DESCRIPTIONS
5.1 Analog Pins
The CS5467 has four differential inputs: VIN1 ??? VIN2 ??
IIN1 ? , and IIN2 ? are the voltage1, voltage2, current1,
and current2 inputs, respectively. A single-ended power
fail monitor input, voltage reference input, and voltage
reference output are also available.
5.1.1 Voltage1 & Voltage2 Inputs
The output of the line voltage resistive divider or trans-
5.1.6 Crystal Oscillator
An external quartz crystal can be connected to the XIN
and XOUT pins as shown in Figure 7 . To reduce system
cost, each pin is supplied with an on-chip, phase-shift-
ing capacitor to ground.
.
XOUT
former is connected to the VIN1+ (VIN2+) and VIN1-
(VIN2-) input pins of the CS5467. The voltage channel
is equipped with a 10x, fixed-gain amplifier. The
full-scale signal level that can be applied to the voltage
channel is ±250 mV. If the input signal is a sine wave,
the maximum RMS voltage is
250 mVp / ? 2 ? 176.78 mVRMS which is approximate-
ly 70.7% of maximum peak voltage.
5.1.2 Current1 & Current2 Inputs
XIN
DGND
C1
C2
Oscillator
Circuit
C1 = C2 = 22 pF
The output of the current-sensing resistor or transform-
er is connected to the IIN1+ (IIN2+) and IIN1- (IIN2-) in-
put pins of the CS5467. To accommodate different
current-sensing elements, the current channel incorpo-
rates a programmable gain amplifier (PGA) with two se-
lectable input gains. The full-scale signal level for the
current channels is ±50 mV or ±250 mV. If the input sig-
nal is a sine wave, the maximum RMS voltage is
35.35 mVRMS or 176.78 mVRMS which is approxi-
mately 70.7% of maximum peak voltage.
5.1.3 Power Fail Monitor Input
An analog input (PFMON) is provided to determine
when a power loss is imminent. By connecting a resis-
tive divider from the unregulated meter power supply to
the PFMON input, an interrupt can be generated, or the
Low Supply Detected (LSD) Status register bit can be
monitored to indicate low-supply conditions. The PF-
MON input has a comparator that trips around the level
of the voltage reference input (VREFIN).
5.1.4 Voltage Reference Input
The CS5467 requires a stable voltage reference of
2.5 V applied to the VREFIN pin. This reference can be
supplied from an external voltage reference or from the
VREFOUT output. A bypass capacitor of at least 0.1 ? F
is recommended at the VREFIN pin.
5.1.5 Voltage Reference Output
The CS5467 generates a 2.5 V reference (VREFOUT).
It is suitable for driving the VREFIN pin, but has very lit-
tle fan-out capacity and is not recommended for driving
external circuits.
18
Figure 7. Oscillator Connections
Alternatively, an external clock source can be connect-
ed to the XIN pin.
5.2 Digital Pins
5.2.1 Reset Input
The active-low RESET pin, when asserted, will halt all
CS5467 operations and reset internal hardware regis-
ters and states. When de-asserted, an initialization se-
quence begins, setting default register values.
5.2.2 CPU Clock Output
A logic-level clock output (CPUCLK) is provided at the
crystal frequency to drive an external CPU or microcon-
troller clock. Two phase choices are available.
5.2.3 Interrupt Output
The INT pin indicates an enabled Internal Status regis-
ter ( Status ) bit is set. Status register bits indicate condi-
tions such as data ready, modulator oscillations, low
supply, voltage sag, current faults, numerical overflows,
and result updates.
5.2.4 Energy Pulse Outputs
The CS5467 provides three pins (E1, E2, E3) for pulse
energy outputs. These pins can also be used to output
other conditions, such as voltage1 sign, power fail mon-
itor, or energy sign.
DS714F3
相关PDF资料 |
PDF描述 |
|---|---|
| AISC-0402-1NOJ-T | INDUCTOR WW CERAM 1.0NH 0402 |
| S5KC-13 | RECTIFIER GPP SMD 800V 5A SMC |
| ACC43DRXH | CONN EDGECARD 86POS .100 DIP SLD |
| GSA50DTMZ-S664 | CONN EDGECARD 100PS R/A .125 SLD |
| A7PSB-1510M | CABLE D-SUB-AMM15B/AE15M/AFM15B |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5471 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:DUAL CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER |
| CS5471-BS | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cirrus Logic 功能描述: |
| CS5471-BSR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CS547233-ISZR | 功能描述:模数转换器 - ADC IC 24-bit 2-ch Delta Sigma ADC 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 |
| CS547239-ISZ | 制造商:Cirrus Logic 功能描述:C 24-BIT 2-CH DELTA SIGMA ADC - Bulk |
发布紧急采购，3分钟左右您将得到回复。