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epc660 Datasheet Preview

epc660 Datasheet

3D TOF imager

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DATASHEET – epc660
3D TOF imager 320 x 240 pixel
General Description
The epc660 is a fully integrated 3D-TOF imager with a resolution of
320 x 240 pixels (QVGA). As a system on chip, the epc660 con-
tains next to the CCD pixel-field the complete control logic to oper-
ate the device. The output of the chip is 12 bit DCS distance data
per pixel, which are accessible through a high-speed digital 12-bit
parallel video interface.
Only few additional components are needed to generate a com-
plete 3D camera. Depending on illumination power and optical de-
sign, a resolution in the millimeter range for distances up to dozens
of meters is feasible. Up to 158 full frame TOF images are deliv-
ered in rolling mode. The extremely high sensitivity of the chip al-
lows for a reduced illumination power and reduced overall power
consumption compared to other TOF imagers.
epc660 is based on the same technology and instruction set as the
epc635 Half-QQVGA TOF imager from ESPROS.
An evaluation kit for the epc660 is available with hard- and soft-
ware examples and a comprehensive manual to speed up system
integration.
Applications
People detection and counting
Postal parcel size measurement
Machine safety
Helicopter near terrain flight assistance
ADAS systems
Pedestrian detection and breaking systems
Man-Machine interface
Gesture control
Body size measurement
General volumetric mapping
Mobile robotics
Simultaneous localization and mapping (SLAM)
Block Diagram
VDDA
VSSA
VDDIO
VSSIO
VDD
VSS
SHUTTER
SCL
SDA
epc660
RGU
Charge
Pump
13V
EEPROM
I2C Slave
Pixel
Cont.
&
Seq.
Memory
Memory
Controller
&
Registers
XTALOUT
XTALIN_CLKIN
OSC
PLL
ROW Buffer
ADC Read-Out
320x240
Pixel Field
ADC Read-Out
ROW Buffer
4x Temp.
Sensors
at corners
De-
modulator
VDDPXH
VDDPXM
VSSPX
VBS
TCMI
VSYNC_A0
HSYNC_A1
XSYNC_SAT
DATA[11:0]
DCLK
m+n
Clock Delay
CGU
0
1
Modulator
DLL
LED Driver
LED2 (push-pull)
LED (open-drain)
VSSLED
Figure 1: Functional block diagram
© 2020 ESPROS Photonics Corporation
Characteristics subject to change without notice
1 / 64
Datasheet_epc660-V2.14
www.espros.com




epc

epc660 Datasheet Preview

epc660 Datasheet

3D TOF imager

No Preview Available !

Main Features
General
3D TOF imager in full monolithic design
320 x 240 pixel-field, backside illuminated
39 fps full 3D TOF frame rate, single frame rate up to 158fps
Region of interest setting allows up to several kfps
4 integrated temperature sensors
Measurement performance
Absolute accuracy in the sub-centimeter range with appropriate
setup and calibration
Integrated LED (or laser diode) driver
Laser diode (LD) illumination possible
Open-drain LED output pad, up to 200mA drive
Push-pull LED2 output pad, up to 50mA drive
Parallel digital data interface TCMI
48MS/s max. data rate, 2.5/3.3V compatible
12/8-bit parallel DATA output + XSYNC/SAT flag
VSYNC, HSYNC and DCLK outputs
I2C control interface (slave)
400kHz (FM) / 1MHz (FM+)
Integrated EEPROM 128 x 8-bit
Calibration data and user programmable parameters
Unique chip ID
System / modulation clock
System clock 4MHz, internal by using crystal/resonator or us-
ing external input
External LED/LD modulation input MODCLK (optional) up to
96MHz
Power supply
Supply voltages +10V, +5V, +2.5/3.3V, +1.8V, -10V
Power consumption approx. 750mW (average)
Packaging
9.7x8.7mm cost optimized 68pin CSP (chip scale package),
Backside illuminated flip-chip SMD mounting
Other data
ROHS compatible
Measurement Modes
Illumination modulation modes
Sinusoidal modulation
Selectable modulation frequencies 0.75 ... 24MHz resulting in
unambiguity distance of 6.25m … 200m
Distance measurement modes
39 fps 3D TOF with 4x DCS frames, full pixel-field
79 fps 3D TOF with 2x DCS frames, full pixel-field
158 fps 3D TOF with rolling read-out 4x DCS frames, full pixel-
field
Ultra fast measurement by reduction of the image field (ROI)
SHUTTER release input for precise start/stop and single/con-
tinuous measurement control
Non distance measurement modes
Ambient-light measurement (Grayscale image without illumina-
tion)
Grayscale image with active illumination
Readout Modes
ROI (Region of interest)
Rectangular sub-pixel-field read-out
Increased frame rate
Binning and resolution reduction
Binning of max. 4 adjacent pixels (2 hor. and 2 ver.)
Resolution reduction to 2nd, 4th or 8th row or column to read-out
Increased frame rate for reduced number of rows
Figure 2: Picture of the epc660
© 2020 ESPROS Photonics Corporation
Characteristics subject to change without notice
2 / 64
Datasheet_epc660-V2.14
www.espros.com


Part Number epc660
Description 3D TOF imager
Maker epc
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