CSE7759

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RR eR ee ve vv 1v 11 .1 ..11 1 1 1 1 1 The firstThe first 1The first 11 page1 pagepage ,page ,, Altogether, AltogetherAltogether 1Altogether 11 11 11 page1 pagepage CSE7759 User's manualCSE7759 User's manual Rev.1.1 Tel: + ( 86 755) 86169257 Tel: + ( 86 755) 86169257 Fax: + ( 86 755) 86169057 Fax: + ( 86 755) 86169057 Company Web site: www.chipsea.com Company Web site: www.chipsea.com

CSE7759 History modify records Rev1.1 The first 2 Page of 11 pageThe first 2 Page of 11 pageThe first 2 Page of 11 pageThe first 2 Page of 11 pageThe first 2 Page of 11 page History modify records time recording version number 2012-10-22 Original Issue2012-10-22 Original Issue 1.0 1.1

Rev1.1 The first 3 Page of 11 pageThe first 3 Page of 11 pageThe first 3 Page of 11 pageThe first 3 Page of 11 pageThe first 3 Page of 11 page table of Contents

2.1 Analog Features

3.1 CSE7759 typical application

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1 Chip Function1 Chip Function

Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For CSE7759 Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For CSE7759 Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For CSE7759 Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For CSE7759 Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For CSE7759 Single phase multi-function measurement chip, which provides high frequency pulses CF High frequency electrical energy for metering and CF1 For 1.1 The main characteristics of the chip functions1.1 The main characteristics of the chip functions Accuracy. 6. The main application areas: the need to measure the voltage, current and power applications, such as a single-phase multi-function meter, the metering plug6. The main application areas: the need to measure the voltage, current and power applications, such as a single-phase multi-function meter, the metering plug Block, DRO like. 1.2 Chip structure described1.2 Chip structure described Map 1 Chip Functional Block DiagramMap 1 Chip Functional Block DiagramMap 1 Chip Functional Block Diagram PGA ADC PGA ADC Active Power Irms Vrms caculation Voltage to Frequency Converter Sigma_i Sigma_u Reference Voltage 2.43V Clock Power On Reset V1P V1N VDD GND SEL CF1 CFV2P

RR eR ee ve vv 1v 11 .1 ..11 1 1 1 1 1 The firstThe first 5The first 55 page5 pagepage ,page ,, Altogether, AltogetherAltogether 1Altogether 11 11 11 page1 pagepage 1.3 Chip Pin Description1.3 Chip Pin Description CSE7759 use SOP8 Package.CSE7759 use SOP8 Package.CSE7759 use SOP8 Package.CSE7759 use SOP8 Package. VDD VIP VIN GND CF CF1 SEL V2P CSE7759 Map 2 Chip pin mapMap 2 Chip pin mapMap 2 Chip pin map table 1 CSE7759 Pin Descriptiontable 1 CSE7759 Pin Descriptiontable 1 CSE7759 Pin Description Pin Number Pin Name input OutputPin Number Pin Name input OutputPin Number Pin Name input Output Explanation Chip power supply Current differential signal input terminal, the maximum differential input signal ± 43.75Mv Current differential signal input terminal, the maximum differential input signal ± 43.75Mv NOTE: When not in use a current signal, V1P with V1N To receive short GND NOTE: When not in use a current signal, V1P with V1N To receive short GND NOTE: When not in use a current signal, V1P with V1N To receive short GND NOTE: When not in use a current signal, V1P with V1N To receive short GND NOTE: When not in use a current signal, V1P with V1N To receive short GND NOTE: When not in use a current signal, V1P with V1N To receive short GND Entry Voltage signal having a positive input terminal. The maximum input signal ± 700mV Voltage signal having a positive input terminal. The maximum input signal ± 700mV NOTE: When a voltage signal is not used, V2P To receive short GND NOTE: When a voltage signal is not used, V2P To receive short GND NOTE: When a voltage signal is not used, V2P To receive short GND NOTE: When a voltage signal is not used, V2P To receive short GND Chip ground Export Active high-frequency pulse output, the duty cycle 50% Active high-frequency pulse output, the duty cycle 50% Export SEL = 0 Rms output current, the duty cycle 50% ;SEL = 0 Rms output current, the duty cycle 50% ;SEL = 0 Rms output current, the duty cycle 50% ;SEL = 0 Rms output current, the duty cycle 50% ; SEL = 1 , RMS output voltage, the duty cycle 50% ;SEL = 1 , RMS output voltage, the duty cycle 50% ;SEL = 1 , RMS output voltage, the duty cycle 50% ;SEL = 1 , RMS output voltage, the duty cycle 50% ; Entry RMS output pin configuration, with pulldown Entry

1 VD D

2, 3 V1P, V1N

4 V2 P

5 GN D

7, CF 1

8 SEL

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2 Chip Feature Description2 Chip Feature Description

Recommended operating conditions parameter Symbol Min Typ Max Units Positive supply temperature range 2.1 Analog Features2.1 Analog Features VDD = 5 V ± 10%; GND = 0 V; parameter Symbol Min Typ Max Units Accuracy Active Power Full range input gain range 0.1% Full range input gain range 0.1% ~ 100% P Active~ 100% P Active RMS current Full range input gain range From 0.2% to 100% range From 0.2% to 100% RMS voltage Full range input gain range 0.2% Full range input gain range 0.2% ~ 100% V RMS~ 100% V RMS Analog input (all channels) Common mode signal Analog Input Crosstalk voltage channel full scale ( 50, 60Hz )Crosstalk voltage channel full scale ( 50, 60Hz )Crosstalk voltage channel full scale ( 50, 60Hz ) Input capacitance Equivalent input impedance: Current ChannelEquivalent input impedance: Current Channel Voltage Channel Equivalent Input Noise Current Channel Voltage Channel Power supply Current consumption IA + ID + (VDD = 5 V) Power ( VDD = 5 V) Power ( VDD = 5 V) Brownout detector threshold a low pressure Brownout detector threshold a high pressure PA ctive - ±0.2 - % IRMS - ±0.5 - % VRMS - ±0.5 - % -1 - 1 V - -100 - dB IC - 6.4 - pF EII 500 6 - kΩ MΩ NI - µVrms µVrms 3 - mA mA PC - 15 mW PMLO - 4 - V PMHI - 4.3 - V VDD 4.5 5.0 5.5 V TA -40 - +85 ℃

CSE7759 Chip Feature Description RR eR ee ve vv 1v 11 .1 ..11 1 1 1 1 1 The firstThe first 7The first 77 page7 pagepage ,page ,, Altogether, AltogetherAltogether 1Altogether 11 11 11 page1 pagepage Built-in reference voltage parameter Symbol Min Typ Max Units The reference voltage Drift 2.2 Digital features2.2 Digital features VDD = 5 V , GND = 0 V VDD = 5 V , GND = 0 V VDD = 5 V , GND = 0 V parameter Symbol Min Typ Max Units Master Clock Master clock frequency Master clock duty cycle filter Input sample rate ( DCLK = Input sample rate ( DCLK = MCLK / K ) MCLK / K ) Digital filter output rate A high-pass filter corner (- 3dB )frequencyA high-pass filter corner (- 3dB )frequencyA high-pass filter corner (- 3dB )frequency input Output High-level input voltage VDD = 5V High-level input voltage VDD = 5V Low level input voltage VDD = 5V, Low level input voltage VDD = 5V, High-level output voltage Iout = +5 mA High-level output voltage Iout = +5 mA Low Output Voltage Iout = -5 mA Low Output Voltage Iout = -5 mA Input leakage current Digital output pin capacitance 2.3 Switching Characteristics2.3 Switching Characteristics V TCVREF - 25 - ppm /℃ MCLK 3.04 3.579 4.12 MHz 30 50 7 0 % - DCLK/4 - Hz OWR - DCLK/128 - Hz - 0.543 - Hz VIH 0.8VDD - - V VIL - - 0.8 V VOH VDD-0.5 - - V VOL - - 0.5 V Iin - ±10 - µA COUT - 5 - pF

CSE7759 Chip Feature Description RR eR ee ve vv 1v 11 .1 ..11 1 1 1 1 1 The firstThe first 8The first 88 page8 pagepage ,page ,, Altogether, AltogetherAltogether 1Altogether 11 11 11 page1 pagepage 2.4 Limit Ratings2.4 Limit Ratings parameter Symbol Min Typ Max Units Digital Power Analog supply VDD to GND V1P, V1N, V2P Analog Input Voltage Digital input voltage Digital output voltage Working temperature storage temperature VDD -0.3 - +6.0 V VDD -0.3 - +6.0 V -0.3 - +6.0 V -1 +1 V VINA -0.3 - VDD+0.3 V VIND -0.3 - VDD+0.3 V VOUTD -0.3 - VDD+0.3 V TA -40 - 85 °C Tstg -65 - 150 °C

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3 Chip applications3 Chip applications

3.1 CSE7759 typical application3.1 CSE7759 typical application3.1 CSE7759 typical application CSE7759 VDD V1P V1N V2P GND CF CF1 SEL Manganin load 220V L N Power Module 33nF 33nF 33nF 10u0.1u 1mΩ MCU Map 3 : CSE7759 typical applicationMap 3 : CSE7759 typical applicationMap 3 : CSE7759 typical applicationMap 3 : CSE7759 typical applicationMap 3 : CSE7759 typical application CSE7759 internal DSP Having a certain gain after the frequency conversion module, active power, RMS voltage, and RMS current output frequency is calculated CSE7759 internal DSP Having a certain gain after the frequency conversion module, active power, RMS voltage, and RMS current output frequency is calculated CSE7759 internal DSP Having a certain gain after the frequency conversion module, active power, RMS voltage, and RMS current output frequency is calculated CSE7759 internal DSP Having a certain gain after the frequency conversion module, active power, RMS voltage, and RMS current output frequency is calculated by the following equation: V1 : The voltage on the pin current path;V1 : The voltage on the pin current path; V2 : The voltage signal the voltage on the pin channel;V2 : The voltage signal the voltage on the pin channel; : Built-in oscillator, typically a frequency of about 3.579MHz ;: Built-in oscillator, typically a frequency of about 3.579MHz ;: Built-in oscillator, typically a frequency of about 3.579MHz ;

RR eR ee ve vv 1v 11 .1 ..11 1 1 1 1 1 The firstThe first 1The first 11 01 00 page0 pagepage ,page ,, Altogether, AltogetherAltogether 1Altogether 11 11 11 page1 pagepage RMS voltage magnitude CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement CF1 Pin on there 2Hz Right and left output signal (this signal can CF Analyzing creep pulse frequency masked), in order to ensure correct measurement RMS magnitude, is applied in the channel V1P \\ V1N RMS current not be less than 40uv , Applied to the channel V2P use, please contact our support technology. 3.3 Chip startup threshold creep prevention3.3 Chip startup threshold creep prevention CSE7759 The use of anti-creep new algorithm, as long as the power value of the input signal is greater than the noise level inside the metering module begins CSE7759 The use of anti-creep new algorithm, as long as the power value of the input signal is greater than the noise level inside the metering module begins normal dosing. 3.4 Built-in oscillator3.4 Built-in oscillator 3.5 Built-in reference source3.5 Built-in reference source

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4 CSE7759 Package4 CSE7759 Package4 CSE7759 Package

CSE7759 use SOP8 Package, package specific information as shown below:CSE7759 use SOP8 Package, package specific information as shown below:CSE7759 use SOP8 Package, package specific information as shown below:CSE7759 use SOP8 Package, package specific information as shown below: Map 4 : CSE7759 FIG Package InformationMap 4 : CSE7759 FIG Package InformationMap 4 : CSE7759 FIG Package InformationMap 4 : CSE7759 FIG Package InformationMap 4 : CSE7759 FIG Package Information