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DPO-4456 Series Digital Phosphor Oscilloscope

  • 4 Ch Analog
  • 350 MHz ~ 1 GHz Bandwidth
  • 5 GS/s sampling rate
  • 200 or 500 Ms/ch memory depth
  • 1,000,000 wfms/s capture rate
  • Trigger source: Analog( Ch1~Ch4(, Ext, digital(D0~D15), 220 Vac
  • Trigger type: edge, pulse, logic, TV video, HD video
  • Function/AW Generator, AM/FM/FSK support
  • 16 Ch Logical Analyzer, 2.5 GS/s
  • Protocol Analyzer: I2C, SPI, CAN, LIN, FlexRay, RS232, USB, Audio, MIL-STD-1553
  • LAN, USB, VGA, Aux ports
  • SCPI/IEEE488, VISA and Software Library for Windows
  • 10.4" touch screen display
  • Wide ange of optional accessories

Ceyear DPO-4456 Series Digital Phosphor Oscilloscope


4456 Series Digital Phosphor Oscilloscope integrates functionalities of a digital oscilloscope, a logic analyzer, a function generator, a protocol analyzer and a digital voltmeter and has many functions including waveform autoset, automatic measurement of waveform parameter, cursor measurement, histograms measurement, arithmetic operation, FFT analysis, serial protocol trigger and analysis, limit and mask test, power measurement and analysis, waveform record and replay, mixed signal analysis, arbitrarily function generator and so on.and analysis, waveform record and replay, mixed signal analysis, arbitrarily function generator and so on.


  • Five in One
  • Any Acquire Phosphor
  • Abundant optional sensors
  • 10.1-inch screen
  • Compact, Light, Portable


Oscilloscope has 350MHz-1GHz bandwidth, 5GSa/s sample rate, up to 500Mpts/CH memory depth, up to 1000,000 wfms/s Waveform capture rates. The originally developed Any Acquire Phosphor technique provides brand-new use experiences of oscilloscope for clients.

Logic Analyzer(optional)

The logic analyzer provides 16 logic channels, 2.5GSa/s sample rate and 500Mpts memory depth and makes it possibile to analysis mixed signal easily

Function Generator(optional)

The function generator can output more than 10 types of pre-defined waveforms with the bandwidth up to 25MHz. The arbitrary waveform generator provides 16k points outputs and you can quickly generate signals you want through drawing the output waveform on the capacitance touch screen.

Protocol Analyzer(optional)

The protocol analyzer supports auto trigger, decoding and analysis of multiple protocols, like I2C, SPI, CAN, LIN, FlexRay, RS232, USB, Audio, and 1553. Serial protocol test solutions are available for embedded, vehicle, computer, audio and aviation etc.


4456 series support passive voltage probes, high voltage single-ended probes, high voltage differential probes and current probes etc, which meets your various test requirements.
  • 350MHz,500MHz,1GHz Bandwidth
  • 5GSa/s Sample rate
  • 500Mpts/CH Memory depth
  • 1000,000 wfms/s Waveform capture rate
  • Precise digital trigger
  • Capacitive screen, multi-point touch
More Information

Technical Specifications

Specification of 4456 Series



Standard   Model

Economic   Model







Vertical system

Vertical system



Bandwidth    Note: >5mV/div







Rise   time







Bandwidth   limits


Input   impedance


Input   coupling


Input   sensitivity range



Amplitude   accuracy

±3% (Note:>   5mV/div)

Max.   input voltage


Vertical   resolution



Offset   range




Channel   isolation


Horizontal system












Horizontal   system

Sample   rate


5GSa/s(1ch,2ch)、2.5GSa/s(3ch,   4ch)

5GSa/s(1ch)、2.5GSa/s(2ch)1.25GSa/s(3ch,   4ch)

Record   length




Acquisition   modes

Normal:acquire   sampled values

 and sample value

Peak Detect:capture   glitches as narrow as 200ps

Peak Detect:capture   glitches as narrow as 800ps

Hi Res: 11digits resolution, can   reduce random noise

Envelope:min-max   envelope reflecting peak detect data over multiple acquisitions

Average:from   2 to 512 waveforms included in average

Roll:scroll   waveforms right to left across the screen, time-base: 100ms/div~1000s/div

Segmentation:   The economical acquisition memory can be divided into 131,072 segments   maximally

Max.   duration at highest sample rate




Maximum   waveform capture rate

Fast sample model:1,000,000   wfms/s

Segment model:700,000   wfms/s

Time base   range



Time base   accuracy


Time   base delay time range

-10 divisions   to 5000s

Ch to   ch deskew  range

±150ns,resolution:   400ps

±150.4ns,resolution:   800ps

Trigger System













Trigger   system

Trigger   source


Trigger   modes

Auto, normal, single

Trigger   hold off range

6.4ns to 12.8s

Trigger   level ranges

Int(CH1~CH4):±4   divisions


Trigger sensitivity

Int(CH1~CH4):users   can adjust,step   by 0.1 div

Ext:50mV、Ext   /10:500mV

Trigger types

Zone   trigger (visual trigger): Trigger on a user-defined zone drawn on the display  


Edge:trigger   at positive or negative edge in any channel or auxiliary input .

Sequence:prepare at a chosen edge,   trigger at a chosen time or other chosen edge of the event   .

Runt:trigger on a pulse that crosses   one threshold but fails to cross a second threshold before crossing the first   again.

Pulse   width:trigger on width of   positive or negative pulses that are >, <, =, ≠, or inside/outside a specified   period of time. pulse width range:0.8ns~10s,resolution: 0.8ns.

Logic:trigger when any logical   pattern of channels goes false or stays true for specified period of time.   Any input can be used as a clock to look for the pattern on a clock edge.   Pattern (AND, OR, NAND, NOR) specified for all input channels defined as   High, Low, or Don’t Care.

Setup   and hold:trigger on   violations of both setup time and hold time between clock and data present on   any of the input.

channels   .

Rise/Fall   Time:trigger on pulse   edge rates that are faster or slower than specified.

Video:trigger on all lines, odd,   even, or all fields on NTSC, PAL, and SECAM video signals .

HD   video(Option S03): trigger on 480p/60、576p/50、720p/50、720p/60、1080i/50、1080i/60、1080p/24、1080p/25、1080p/30.

Measurement and analysis system



















Measurement   and analysis system

Auto measurement

30,   of which up to eight can be displayed on-screen at any one time. Measurements   include: period, frequency, delay, top drop, rise Time, fall Time, positive   duty cycle, negative duty cycle, positive pulse width, negative pulse width,   burst width, phase, positive overshoot, negative overshoot , peak to peak,   amplitude, high, low, max, min, mean, cycle mean, RMS, cycle RMS, positive   pulse count, negative pulse count, rising edge count, falling edge count,   area and cycle area. 


Waveform and screen

Measurement   statistics

Mean, min, max, standard deviation

Reference   levels

User-definable   reference levels for automatic measurements can be specified in either   percent or units.


Isolate the specific occurrence   within an acquisition to take measurements on, using either the screen or   waveform cursors.

Waveform   histogram


A   waveform histogram provides an array of data values representing the total   number of hits inside of a user-defined region of the display.

Source:CH1~CH4,   REF1~REF4, math.

Type: vertical, horizontal.

Measurement types:12,   of which up to eight can be displayed on-screen at any one time. waveform   count, hits in box, peak hits, median, max, min, peak-to-peak, mean, standard   deviation, sigma 1, sigma 2, sigma 3.

Waveform   mathematics

Arithmetic:add,   subtract, multiply and divide waveforms.

Math functions:integrate,   differentiate, FFT

FFT:set   FFT vertical scale to Linear RMS or dBV RMS, and FFT window to rectangular,   hamming, hanning or


Advanced   math:define   extensive algebraic expressions including waveforms, reference waveforms,   math functions, scalars,   up to two user-adjustable variables and results of parametric measurements.

Limit   and mask test (Option S01)

Incluided standard masks:ITU-T, ANSI   T1.102,   USB

Mask test source:CH1~CH4

Limit test source:CH1~CH4、REF1~REF4

Mask   creation:Limit   test vertical tolerance from 0 to 1 division; limit test horizontal tolerance   from 0 to 500 m division. Load standard mask and custom mask from text file.

Mask scaling:lock   to source on, lock to source off.

Test criteria run unti:Minimum number of   waveforms (from 1 to 1,000,000 and Infinity).

The shortest time (1 s-48 h;   infinity)


Violatetion threshold:1~1000000.

Actions on test failure:stop acquisition,   save screen image to file, save waveform to file,, trigger out pulse.

Actions on test complete:trigger out pulse.

Result display:test status, total   waveforms, number of violations, violation rate, total tests, failed tests,   test failure rate, elapsed time, total hits for each mask segment.



Power measurement and analysis

(Option S02)

Power   quality test: VRMS, Vcrest factor, frequency, IRMS,   Icrest factor, active power, apparent power, reactive power, power   factor, phase angle

Switching   loss measurement: Power loss and energy loss, including Ton, Toff,   conduction, total loss

Harmonics:   THD-F, THD-R, RMS measurement, harmonic graphic display and table display

Ripple   measurement: Vripple and Iripple

Modulation   analysis: Graphic display of modulation types including +pulse width, -pulse   width, period, frequency, +duty ratio and -duty ratio

Safety   operation area: Graphic display of measurement of safety operation areas of   switching equipment and template test

Measurement   of dV/dt and dI/dt: Conversion rate marker measurement

Protocol analysis Options

















Decode channel


Display format

Binary, hexadecimal

Display types

Bus, digital, event list with   time scale information.

I2C(Option S04)

Trigger   on start, repeated start, stop, missing ACK, address, data, or address and   data on I2C buses up to 10 Mb/s.

Signal rate:≤10Mbps; Protocol   type:7   digita /10 digits address

RS232(Option S05)

Trigger on Tx start bit, Rx   start bit, Tx end of packet, Rx end of packet, Tx data, Rx data, Tx parity   error, and Rx parity error up to 2Mbps.

Signal rate:50bps~2Mbps

SPI(Option S06)

Trigger on start of frame,   MOSI, MISO, or MOSI and MISO on SPI buses up to 10 Mb/s.

Signal rate:≤10Mbps

CAN(Option S07)

Trigger on start of frame,   frame type, identifier, data, identifier and data,end of frame, missing ACK,   or bit stuffing error on CAN signals up to 1 Mb/s.

Signal rate:10kbps~1Mbps

LIN(Option S08)

Trigger on sync, identifier,   data, identifier and data, wakeup frame, sleep frame, errors, up to 100 kb/s.

Signal rate:800bps~100kbps; Protocol   standard:1.x、2.x

FlexRay(Option S09)

Trigger on start of frame, type   of frame, identifier, cycle count, complete header field,data, identifier and   data, end of frame or errors ,up to 10 Mb/s.

Signal rate:2.5Mbps、5Mbps、10Mbps

Audio(Option S10)

Trigger on word select, frame sync,   or data. Maximum data rate for I2S/LJ/RJ/TDM is 10 Mb/s.

Signal rate:≤10Mbps; Protocol   type:I2S、LJ、RJ、TDM

USB(Option S11)

Trigger on sync active, start   of frame, reset, suspend, resume, end of packet, token packet, data packet,   handshake packet, special packet, error. Low speed is 1.5Mbps and full speed   is 12Mbps. 

Signal rate:low speed 1.5Mbps,   full speed 12Mbps

MIL-STD-1553(Option S12)

Trigger on synchronization, word type,   command word, data word, error and idle time, with a rate of 1 Mbps


Signal rate:1Mbps

Logical Analyzer (Option H01)


Logical   analyzer


Option H01

Number of digital channels


Threshold grouping

Pod   1: D7~D0; Pod2: D15~D8

Threshold selection

TTL   (1.4 V), 5VCMOS (2.5 V), 3.3VCMOS (1.65 V), 2.5VCMOS (1.25 V), ECL (-1.3 V),   PECL (3.7 V), user-defined

User-defined threshold range

±20   V, with an increment of 10 mV

Threshold precision

±   (150 mV+3% of threshold setting)

Maximum input voltage

±40   V peak-peak value

Input dynamic range

±10   V relative to the threshold

Minimum voltage amplitude


Maximum input switching rate


Input impedance

100   kΩ±1%

Vertical resolution


Timing sample rate


Memory   depth

500Mpts/CH   (C/D/E)

200Mpts/CH   (CM/DM/EM)

Minimum   detection pulse width


Inter   channel delay error


Function generator (Option H02)












Function generator




Option H02

Number   of channels


Max output frequency


Maximum sample rate


Vertical resolution


Output impedance

50Ω (typical value)

Output waveform

Standard   waveform: Sine wave, square wave, oblique wave, pulse, DC, noise and   arbitrary wave

Built-in   waveform: SinC, Exponential Rise/Decay, Gaussian, Lorentz curve and haversine   curve



Sine wave

Frequency   range: 0.1 Hz~25 MHz

Harmonic   distortion: -40 dBc

Stray:   -40 dBc

Total   harmonic distortion: 1%

Signal-to-noise   ratio: 40 dB

Square wave/pulse

Frequency   range: 0.1 Hz~10MHz

Duty   ratio: 1%~99%

Duty   ratio resolution: 0.1%  or 5 ns (the   larger one prevails)

Minimum   pulse width: 40 ns

Pulse   width resolution: 5 ns or 4 digits (the larger one prevails)

Ramp /triangular wave

Frequency   range: 0.1 Hz~1MHz

Linearity:   1%

Variable   symmetry: 0~100%


Bandwidth:   25 MHz

Built-in waveform frequency

0.1   Hz~1 MHz

Arbitrary   waveform

Waveform   length: 1~16,384

Frequency   range: 0.1 Hz~10MHz


Precision:   100 ppm

Resolution:   0.1 Hz or 4 digits (the larger one prevails)


Output   range: 50 mVpp~2.5 Vpp (50Ω)

Precision:   ±[1.5% peak to peak amplitude setting +1.5% DC offset setting)+1 mV

DC   offset

Offset   range: ±1.25 V (50Ω)

Offset   resolution: 1 mV (50Ω)

Offset   precision: ±2% of the offset setting value

Digital voltmeter

Digital voltmeter

Measurement source


Measurement types

AC RMS, DC, DC+AC RMS,   frequency


Digital voltmeter:4 digits

Frequency counter:6 digits

Display system

Display   system

Display type

10.4 inch color LCD

Display resolution

1024 horizontal × 768 vertical pixels


full,   grid, crosshair, frame

Touch screen

Capacitive, supports waveform and menu   operation.

Waveform styles

Dots, vectors, persistence.

Display format


Grey grade


Waveform color

Normal, inverted, temperature and   spectral


Chinese, English


The   waveform, scale and screen brightness can be freely adjusted

input and output ports


Input   and output ports

USB host port

Two ports on front and two ports on   rear of instrument.

USB device port

One port on rear of instrument.

LAN port

RJ-45 connector, supports 10/100/1000   Mb/s

Video output port

DB-15 female connector, connect to   show the oscilloscope display on an external monitor or projector.

Auxiliary input

Rear panel BNC, 1MΩ impedance, max.   input: 300Vrms.

Auxiliary output

Rear panel BNC,used   for trigger pulse signal output, event output of limit mask test, or built-in   training signal output

Reference input/output

Rear panel BNC,time   base systems is used for input or output of reference clock, frequency is 10MHz.

Probe compensator

Front panel pins, frequency is 1kHz, amplitude   is approx. 3 V.

Physical characters

Physical   characters

Structural style


Power source


Max. power consumption: 150 W

Operating temperature




Max. weight




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