ON AR0230CSSC00SUEAH3-GEVB 1/2.7â inch 2.1 mp/full hd digital image sensor Datasheet

AR0230CS
1/2.7‐inch
2.1 Mp/Full HD Digital
Image Sensor
GENERAL DESCRIPTION
ON Semiconductor’s AR0230CS is a 1/2.7−inch CMOS digital
image sensor with an active−pixel array of 1928Hx1088V. It captures
images in either linear or high dynamic range modes, with a
rolling−shutter readout. It includes sophisticated camera functions
such as in−pixel binning, windowing and both video and single frame
modes. It is designed for both low light and high dynamic range scene
performance. It is programmable through a simple two−wire serial
interface. The AR0230CS produces extraordinarily clear, sharp digital
pictures, and its ability to capture both continuous video and single
frames makes it the perfect choice for a wide range of applications,
including surveillance and HD video.
Table 1. KEY PERFORMANCE PARAMETERS
Parameter
1/2.7−inch (6.6 mm)
Active Pixels
1928(H) x 1088(V) (16:9 mode)
Pixel Size
3.0 μm x 3.0 μm
Color Filter Array
RGB Bayer
Shutter Type
Electronic rolling shutter and GRR
Input Clock Range
6 – 48 MHz
Output Clock Maximum
148.5 Mp/s (4−lane HiSPi)
74.25 Mp/s (Parallel)
Output
Frame
Rate
Serial
HiSPi 10−, 12−, 14−, 16−, or 20−bit
Parallel
10−, 12−bit
1080p
60 fps
Responsivity
4.0 V/lux−sec
SNRMAX
41 dB
Max Dynamic Range
Up to 96 dB
Supply
Voltage
IBGA80 10 y 10
CASE 503AN
ORDERING INFORMATION
See detailed ordering and shipping information on page 2 of
this data sheet.
Features
• Superior low−light performance
• Latest 3.0 μm pixel with ON Semiconductor
Typical Value
Optical Format
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•
•
•
•
•
•
•
•
•
•
•
I/O
1.8 or 2.8 V
Digital
1.8 V
Analog
2.8 V
HiSPi
0.3 V − 0.6 V (SLVS), 1.7 V − 1.9 V (HiVcm)
Power Consumption
(typical)
386 mW (Linear, 1080p30, 25°C, parallel output)
558 mW (HDR, 1080p30, 25°C, parallel output)
Operating Temperature
–30°C to +85°C ambient
Package Options
10x10 mm 80−pin iBGA
•
•
•
DR−Pix™ technology with Dual Conversion
Gain
Full HD support at up to 1080P 60 fps for
superior video performance
Linear or high dynamic range capture
Optional adaptive local tone mapping
(ALTM)
Pixel or Line interleaved T1/T2 output
Support for external mechanical shutter
On−chip phase−locked loop (PLL) oscillator
Integrated position−based color and lens
shading correction
Slave mode for precise frame−rate control
Stereo/3D camera support
Statistics engine
Data interfaces: four−lane serial high−speed
pixel interface (HiSPi) differential signaling
(SLVS and HiVCM), or parallel
Auto black level calibration
High−speed configurable context switching
Temperature sensor
Applications
• Video surveillance
• 1080p60 (Surveillance) video applications
• High dynamic range imaging
© Semiconductor Components Industries, LLC, 2006
August, 2017 − Rev.11
1
Publication Order Number:
AR0230CS/D
AR0230CS
ORDERING INFORMATION
Table 2. AVAILABLE PART NUMBERS
Part Number
Product Description
Orderable Product Attribute Description †
AR0230CSSC00SUEA0−DRBR
2 Mp 1/3” CIS RGB, 0deg CRA, iBGA Package
Drypack, Anti−Reflective Glass
AR0230CSSC00SUEAH3−GEVB
RGB, 0deg CRA, Headboard
Headboard
AR0230CSSC12SUEA0−DR
2 Mp 1/3” CIS RGB, 12deg CRA, iBGA Package
Drypack
AR0230CSSC12SUEAH3−GEVB
RGB, 12deg CRA, Headboard
Headboard
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
See the ON Semiconductor Device Nomenclature
document (TND310/D) for a full description of the naming
convention used for image sensors. For reference
documentation, including information on evaluation kits,
please visit our web site at www.onsemi.com.
GENERAL DESCRIPTION
The ON Semiconductor AR0230CS can be operated in its
default mode or programmed for frame size, exposure, gain,
and other parameters. The default mode output is a
1080p−resolution image at 60 frames per second (fps)
through the HiSPi port. In linear mode, it outputs 12−bit or
10−bit A−Law compressed raw data, using either the parallel
or serial (HiSPi) output ports. In high dynamic range mode,
it outputs 12−bit compressed data using parallel output. In
HiSPi mode, 12− or 14−bit compressed, or 16−bit linearized
data may be output. The device may be operated in video
(master) mode or in single frame trigger mode.
FRAME_VALID and LINE_VALID signals are output on
dedicated pins, along with a synchronized pixel clock in
parallel mode.
The AR0230CS includes additional features to allow
application−specific tuning: windowing and offset, auto
black level correction, and on−board temperature sensor.
Optional register information and histogram statistic
information can be embedded in the first and last 2 lines of
the image frame.
The AR0230CS is designed to operate over a wide
temperature range of −30°C to +85°C ambient.
FUNCTIONAL OVERVIEW
The AR0230CS is a progressive−scan sensor that
generates a stream of pixel data at a constant frame rate. It
uses an on−chip, phase−locked loop (PLL) that can be
optionally enabled to generate all internal clocks from a
single master input clock running between 6 and 48 MHz.
The maximum output pixel rate is 148.5 Mp/s,
corresponding to a clock rate of 74.25 MHz. Figure 1 shows
a block diagram of the sensor configured in linear mode, and
in HDR mode.
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AR0230CS
ADC Data
ADC Data
12
12
Row Noise Correction
Row Noise Correction
Black Level Correction
Black Level Correction
Test Pattern Generator
Test Pattern Generator
Pixel Defect Correction
Pixel Defect Correction
Adaptive CD Filter
Adaptive CD Filter
12
12
Digital Gain and Pedestal
Digital Gain and Pedestal
Motion Correction
HDR Linearization
A−Law Compression
Smoothing Filter
10 bits
12 bits
HISPI
16
Parallel
16 bits
Companding or ALTM
14 or 12 bits
HISPI
12 bits
Parallel
Figure 1. Block Diagram of AR0230CS
(providing offset correction and gain), and then through an
analog−to−digital converter (ADC). The output from the
ADC is a 12−bit value for each pixel in the array. The ADC
output passes through a digital processing signal chain
(which provides further data path corrections and applies
digital gain). The sensor also offers a high dynamic range
mode of operation where multiple images are combined
on−chip to produce a single image at 16−bit per pixel value.
A compression mode is further offered to allow the 16 bits
per pixel to be transmitted to the host system as a 12−bit
value with close to zero loss in image quality.
User interaction with the sensor is through the two−wire
serial bus, which communicates with the array control,
analog signal chain, and digital signal chain. The core of the
sensor is a 2.1 Mp Active− Pixel Sensor array. The timing
and control circuitry sequences through the rows of the
array, resetting and then reading each row in turn. In the time
interval between resetting a row and reading that row, the
pixels in the row integrate incident light. The exposure is
controlled by varying the time interval between reset and
readout. Once a row has been read, the data from the
columns is sequenced through an analog signal chain
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Master clock
(6−48 MHz)
From
controller
Digital
I/O
power
Digital
Core
power
VDD_IO
VDD
HiSPi
PLL
Analog
power power power
EXTCLK
SADDR
SDATA
SCLK
TRIGGER
TEST
DGND
Digital
ground
VDD
VDD_SLVS VDD_PLL VAA
VDD_PLL
VAA
Analog
power
VAA_PIX
SLVS0_P
SLVS0_N
SLVS1_P
SLVS1_N
SLVS2_N
SLVS2_P
SLVS3_P
SLVS3_N
SLVSC_P
SLVSC_N
FLASH
SHUTTER
OE_BAR
RESET_BAR
VDD_IO
VDD_SLVS
1.5 kΩ
1.5 kΩ
AR0230CS
AGND
Analog
ground
VAA_PIX
NOTES:
1. All power supplies must be adequately decoupled
2. ON Semiconductor recommends a resistor value of 1.5kΩ, but a greater value may be used for
slower two−wired speed.
3. The parallel interface output pads can be left unconnected if the serial output interface is used.
4. ON Semiconductor recommends that 0.1 μF and 10 μF decoupling capacitors for each power
supply are mounted as close as possible to the pad. Actual values and results may vary
depending on lay out and design considerations. Refer to the AR0230CS demo headboard
schematics for circuit recommendations.
5. ON Semiconductor recommends that analog power planes are placed in a manner such that
coupling with the digital power planes is minimized.
6. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage
currents.
Figure 2. Typical Configuration: Serial Four−Lane HiSPi Interface
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To
controller
1.5 kΩ
1.5 kΩ
AR0230CS
Master clock
(6−48 MHz)
Digital
I/O
power
Digital
Core
power
VDD_IO
VDD
PLL
Analog
power power
Analog
power
VDD_PLL
VAA_PIX
VAA
EXTCLK
DOUT[11:0]
SADDR
SDATA
SCLK
From
controller
PIXCLK
LINE_VALID
FRAME_VALID
TRIGGER
OE_BAR
RESET_BAR
TEST
FLASH
SHUTTER
DGND
AGND
Analog
ground
Digital
ground
VDD_IO
VDD
VDD_PLL VAA
VAA_PIX
Figure 3. Typical Configuration: Serial Four−Lane HiSPi Interface
NOTES:
7. All power supplies must be adequately decoupled.
8. ON Semiconductor recommends a resistor value of 1.5kΩ, but a greater value may be used for
slower two−wired speed.
9. The serial interface output pads and VDDSLVS can be left unconnected if the parallel output
interface is used.
10. ON Semiconductor recommends that 0.1 μF and 10 μF decoupling capacitors for each power
supply are mounted as close as possible to the pad. Actual values and results may vary
depending on lay out and design considerations. Refer to the AR0230CS demo headboard
schematics for circuit recommendations.
11. ON Semiconductor recommends that analog power planes are placed in a manner such that
coupling with the digital power planes is minimized.
12. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage
currents.
13. The EXTCLK input is limited to 6−48 MHz
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To
controller
AR0230CS
1
A
B
VDD_PLL
2
3
4
5
6
7
8
9
SLVS0_P
SLVS1_P
SLVSC_P
SLVS2_P
SLVS3_P
VDD
VDD_IO
VDD
SLVS0_N
SLVS1_N
SLVSC_N
SLVS2_N
SLVS3_N
DGND
DGND
SHUTTER
AGND
DGND
VDD_SLVS
VDD
DGND
DGND
DGND
Reserved
EXTCLK
PIXCLK
SADDR
TRIGGER
DGND
AGND
VAA
C
VAA
D
VDD
E
VDD_IO
DGND
SDATA
FLASH
FRAME_VALID
SCLK
DGND
AGND
VAA_PIX
F
VDD
DGND
DOUT11
DOUT10
DOUT9
LINE_VALID
Reserved
AGND
VAA
G
VAA
AGND
DGND
DOUT8
DOUT7
DOUT6
DGND
DGND
VDD_IO
H
VDD_IO
DGND
DGND
DOUT5
DOUT4
DOUT3
RESET_
BAR
TEST
VDD
J
DOUT2
VDD_IO
DOUT1
DOUT0
VDD
DGND
VDD_IO
OE_BAR
VDD_IO
DGND
Figure 4. 80−Ball IBGA Package
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AR0230CS
Table 3. PIN DESCRIPTION, 80−BALL IBGA
Pin Number
Pin Name
Type
SLVS0_P
A2
Output
HiSPi serial data, lane 0, differential P.
Description
SLVS1_P
A3
Output
HiSPi serial data, lane 1, differential P.
SLVSC_P
A4
Output
HiSPi serial DDR clock differential P.
SLVS2_P
A5
Output
HiSPi serial data, lane 2, differential P.
SLVS3_P
A6
Output
HiSPi serial data, lane 3, differential P.
VDD_PLL
B1
Power
PLL power.
SLVS0_N
B2
Output
HiSPi serial data, lane 0, differential N.
SLVS1_N
B3
Output
HiSPi serial data, lane 1, differential N.
SLVSC_N
B4
Output
HiSPi serial DDR clock differential N.
SLVS2_N
B5
Output
HiSPi serial data, lane 2, differential N.
SLVS3_N
B6
Output
HiSPi serial data, lane 3, differential N.
SHUTTER
B9
Output
Control for external mechanical shutter. Can be left floating if not used.
VAA
C1, G1, D9, F9
Power
Analog power.
AGND
C2, G2, D8, E8, F8
Power
Analog ground.
VDD_SLVS
C4
Power
0.3V−0.6V or 1.7V − 1.9V port to HiSPi Output Driver. Set the High_VCM
(R0x306E[9]) bit to 1 when configuring VDD_SLVS to 1.7 – 1.9V.
VDD
C5, J5, A9, H9, A7,
D1, F1
Power
Reserved
C9, F7
DGND
B7, C7, D7, E7, G7,
B8, C8, G8, D2, E2,
F2, H2, C3, G3, H3,
C6, J6
Power
EXTCLK
D3
Input
PIXCLK
D4
Output
SADDR
D5
Input
Two−Wire Serial address select. 0: 0x20. 1: 0x30
TRIGGER
D6
Input
Exposure synchronization input.
VAA_PIX
E9
Power
VDD_IO
E1, H1, J2, J7, A8,
G9, J9
Power
SDATA
E3
I/O
FLASH
E4
Output
Flash control output.
FRAME_VALID
E5
Output
Asserted when Dout frame data is valid.
SCLK
E6
Input
DOUT11
F3
Output
Parallel pixel data output (MSB)
DOUT10
F4
Output
Parallel pixel data output.
DOUT9
F5
Output
Parallel pixel data output.
LINE_VALID
F6
Output
Asserted when Dout line data is valid.
DOUT8
G4
Output
Parallel pixel data output.
DOUT7
G5
Output
Parallel pixel data output.
DOUT6
G6
Output
Parallel pixel data output.
DOUT5
H4
Output
Parallel pixel data output.
DOUT4
H5
Output
Parallel pixel data output.
Parallel pixel data output.
Digital power.
Digital ground.
External input clock.
Pixel clock out. Dout is valid on rising edge of this clock.
Pixel power.
I/O supply power.
Two−Wire Serial data I/O.
Two−Wire Serial clock input.
DOUT3
H6
Output
RESET_BAR
H7
Input
Asynchronous reset (active LOW). All settings are restored to factory default.
TEST
H8
Input.
Manufacturing test enable pin (connect to Dgnd).
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AR0230CS
Table 3. PIN DESCRIPTION, 80−BALL IBGA (continued)
Pin Number
Pin Name
Type
DOUT2
J1
Output
Parallel pixel data output.
Description
DOUT1
J3
Output
Parallel pixel data output.
DOUT0
J4
Output
Parallel pixel data output (LSB)
OE_BAR
J8
Input
Output enable (active LOW).
PIXEL DATA FORMAT
Pixel Array Structure
While the sensor’s format is 1928 x 1088, additional
active columns and active rows are included for use when
horizontal or vertical mirrored readout is enabled, to allow
readout to start on the same pixel. The pixel adjustment is
always performed for monochrome or color versions. The
active area is surrounded with optically transparent dummy
pixels to improve image uniformity within the active area.
Not all dummy pixels or barrier pixels can be read out.
1944
10 barrier + 4 border pixels
1928
x 1088
5.78 mm x 3.26 mm
1116
2 barrier + 6 border pixels
2 barrier + 6 border pixels
10 barrier + 4 border pixels
Light dummy
pixel
Active pixel
Figure 5. Pixel Array Description
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AR0230CS
Column Readout Direction
..
.
Active Pixel (0,0)
Array Pixel (0,0)
Row Readout Direction
...
R G
R G
G B
G
R G
R G
R G
R G
G B
G
G
G
R G
R G
R G
R G
G B
G
G
G
B
B
B
R G
R G
G
G
B
B
B
B
B
B
..
.
Figure 6. Pixel Color Pattern Detail (Top Right Corner)
Default Readout Order
By convention, the sensor core pixel array is shown with
pixel (0,0) in the top right corner (see Figure 6). This reflects
the actual layout of the array on the die. Also, the first pixel
data read out of the sensor in default condition is that of pixel
(10, 14).
When the sensor is imaging, the active surface of the
sensor faces the scene as shown in Figure 7. When the image
is read out of the sensor, it is read one row at a time, with the
rows and columns sequenced as shown in Figure 7.
Lens
Scene
Sensor (rear view)
Row
Readout
Order
Column Readout Order
Pixel (0.0)
Figure 7. Imaging a Scene
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AR0230CS
FEATURES OVERVIEW
For a complete description, recommendations, and usage
guidelines for product features, refer to the AR0230CS
Developer Guide.
3.0 mm Dual Conversion Gain Pixel
To improve the low light performance and keep the high
dynamic range, a large (3.0um) dual conversion gain pixel
is implemented for better image optimization. With a dual
conversion gain pixel, the conversion gain of the pixel may
be dynamically changed to better adapt the pixel response
based on dynamic range of the scene. This gain can be
switched manually or automatically by an auto exposure
control module.
HDR
exposure ratio may be set to 4x, 8x, 16x, or 32x. Depending
on whether HiSPi or Parallel mode is selected, the full 16 bit
value may be output, it can be compressed to 12 bits using
Adaptive Local Tone Mapping (ALTM), or companded to
12 or 14 bits.
Options to output T1 only, T2 only, or pixel interleaved
data are also available. Individual exposures may be read out
in a line interleaved mode as described in the T1/T2 Line
Interleaved Mode section.
By default, the sensor powers up in HDR Mode. The HDR
scheme used is multi−exposure HDR. This allows the sensor
to handle up to 96 dB of dynamic range. In HDR mode, the
sensor sequentially captures two exposures by maintaining
two separate read and reset pointers that are interleaved
within the rolling shutter readout. The intermediate pixel
values are stored in line buffers while waiting for the two
exposure values to be present. As soon as a pixel’s two
exposure values are available, they are combined to create
a linearized 16−bit value for each pixel’s response. The
Resolution
The active array supports a maximum of 1928x1088
pixels to support 1080p resolution. Utilizing a 3.0um pixel
will result in an optical format of 1/2.7−inch (approximately
6.6mm diagonal).
Frame Rate
At full (1080p) resolution, the AR0230CS is capable of
running up to 3060 fps.
Image Acquisition Mode
time in such a way that the stream of output frames from
the AR0230CS switches cleanly from the old integration
time to the new while only generating frames with uniform
integration. See “Changes to Integration Time” in the
AR0230CS Register Reference.
• Global reset mode.
This mode can be used to acquire a single image at the
current resolution. In this mode, the end point of the pixel
integration time is controlled by an external
electromechanical shutter, and the AR0230CS provides
control signals to interface to that shutter. The benefit of
using an external electromechanical shutter is that it
eliminates the visual artifacts associated with ERS
operation. Visual artifacts arise in ERS operation,
particularly at low frame rates, because an ERS image
effectively integrates each row of the pixel array at a
different point in time.
The AR0230CS supports two image acquisition modes:
• Electronic rolling shutter (ERS) mode
This is the normal mode of operation. When the
AR0230CS is streaming, it generates frames at a fixed rate,
and each frame is integrated (exposed) using the ERS. When
ERS mode is in use, timing and control logic within the
sensor sequences through the rows of the array, resetting and
then reading each row in turn. In the time interval between
resetting a row and subsequently reading that row, the pixels
in the row integrate incident light. The integration
(exposure) time is controlled by varying the time between
row reset and row readout. For each row in a frame, the time
between row reset and row readout is the same, leading to a
uniform integration time across the frame. When the
integration time is changed (by using the two−wire serial
interface to change register settings), the timing and control
logic controls the transition from old to new integration
Embedded Data and Statistics
The AR0230CS has the capability to output image data
and statistics embedded within the frame timing. There are
two types of information embedded within the frame
readout.
• Embedded Data:
If enabled, these are displayed on the two rows
•
immediately before the first active pixel row is
displayed.
Embedded Statistics:
If enabled, these are displayed on the two rows
immediately after the last active pixel row is displayed.
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AR0230CS
Multi−Camera Synchronization
The AR0230CS supports advanced line synchronization
controls for multi−camera (stereo) support.
Slave Mode
The slave mode feature of the AR0230CS supports
triggering the start of a frame readout from an input signal
that is supplied from an external ASIC. The slave mode
signal allows for precise control of frame rate and register
change updates.
Context Switching and Register Updates
switch change bit. When the context switch is configured to
context A the sensor will reference the context A registers.
If the context switch is changed from A to B during the
readout of frame n, the sensor will then reference the context
B coarse_integration_time registers in frame n+1 and all
other context B registers at the beginning of reading frame
n+2. The sensor will show the same behavior when changing
from context B to context A. The registers listed in Table 4
are context−switchable:
The user has the option of using the highly configurable
context memory, or a simplified implementation in which
only a subset of registers is available for switching. The
AR0230 supports a highly configurable context switching
RAM of size 256 x 16. Within this Context Memory,
changes to any register may be stored. The register set for
each context must be the same, but the number of contexts
and registers per context are limited only by the size of the
context memory.
Alternatively, the user may switch between two
predefined register sets A and B by writing to a context
Table 4. LIST OF CONFIGURABLE REGISTERS FOR
CONTEXT A AND CONTEXT B
Context A
Context B
Register Description
Register Description
coarse_integration_time
coarse_integration_time_cb
line_length_pck
ine_length_pck_cb
frame_length_lines
frame_length_lines_cb
row_bin
row_bin_cb
col_bin
col_bin_cb
fine_gain
fine_gain_cb
Coarse_gain
coarse_gain_cb
x_addr_start
x_addr_start_cb
y_addr_start
y_addr_start_cb
x_addr_end
x_addr_end_cb
y_addr_end
y_addr_end_cb
y_odd_inc
y_odd_inc_cb
x_odd_inc
x_odd_inc_cb
green1_gain
green1_gain_cb
blue_gain
blue_gain_cb
red_gain
red_gain_cb
green2_gain
green2_gain_cb
global_gain
global_gain_cb
operation_mode_ctrl
operation_mode_ctrl_cb
bypass_pix_comb
bypass_pix_comb_cb
Motion Compensation/DLO
optionally enabled by register write. Additional parameters
are available to control the extent of motion detection and
correction as per the requirements of the specific
application.
In typical multi−exposure HDR systems, motion artifacts
can be created when objects move during the T1 or T2
integration time. When this happens, edge artifacts can
potentially be visible and might look like a ghosting effect.
To correct this, the AR0230CS has special 2D motion
compensation circuitry that detects motion artifacts and
corrects the image. The motion compensation feature can be
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AR0230CS
Tone Mapping
readout window. Horizontal binning is achieved in the
digital readout. The sensor will sample the combined 2x
adjacent pixels within the same color plane. Vertical row
binning is applied in the pixel readout. Row binning can be
configured as 2x rows within the same color plane. Pixel
skipping can be configured up to 2x in both the x−direction
and y−direction. Skipping pixels in the x−direction will not
reduce the row time. Skipping pixels in the y direction will
reduce the number of rows from the sensor effectively
reducing the frame time. Skipping will introduce image
artifacts from aliasing.
The AR0230CS supports row wise vertical binning. Row
wise vertical summing is not supported.
Real−world scenes often have a very high dynamic range
(HDR) that far exceeds the electrical dynamic range of the
imager. Dynamic range is defined as the luminance ratio
between the brightest and the darkest objects in a scene.
Even though the AR0230CS can capture full dynamic range
images, the images are still limited by the low dynamic
range of display devices. Today’s typical LCD monitor has
a contrast ratio around 1,000:1 while it is not atypical for an
HDR image having a contrast ratio of around 250,000:1.
Therefore, in order to reproduce HDR images on a low
dynamic range display device, the captured high dynamic
range must be compressed to the available range of the
display device. This is commonly called tone mapping. The
AR0230CS has implemented an adaptive local tone
mapping (ALTM) feature to reproduce visually appealing
images that increase the local contrast and the visibility of
the images.
Clocking Options
The sensor contains a phase−locked loop (PLL) that is
used for timing generation and control. The required VCO
clock frequency is attained through the use of a pre−PLL
clock divider followed by a multiplier. The PLL multiplier
should be an even integer. If an odd integer (M) is
programmed, the PLL will default to the lower (M−1) value
to maintain an even multiplier value. The multiplier is
followed by a set of dividers used to generate the output
clocks required for the sensor array, the pixel analog and
digital readout paths, and the output parallel and serial
interfaces. Use of the PLL is required when using the HiSPi
interface.
Adaptive Color Difference (ADACD) Noise Filtering
A good noise reduction filter will remove noise from an
image while retaining as much image detail as possible. To
retain image detail, the noise reduction filter must adapt to
the image signal. To remove noise, the noise reduction filter
must adapt to the noise level of the image signal. The key is
to remove the appropriate amount of noise. Over−filtering
will cause image blurring while under−filtering will leave
noise in the image. The AdaCD algorithm relies on a noise
model derived from characterization data to aid in
separating noise from signal.
The AR0230CS AdaCD algorithm performs
pixel−by−pixel color noise correction for each of the red,
blue, and green color planes. Each pixel is corrected based
on surrounding pixel values on the same color plane and a
noise model. The noise model is based on characterization
data, and takes into account applied analog gain.
Temperature Sensor
The AR0230CS sensor has a built−in PTAT−based
temperature sensor, accessible through registers, that is
capable of measuring die junction temperature. The value
read out from the temperature sensor register is an ADC
output value that needs to be converted downstream to a
final temperature value in degrees Celsius. Since the PTAT
device characteristic response is quite linear in the
temperature range of operation required, a simple linear
function can be used to convert the ADC output value to the
final temperature in degrees Celsius.
A single reference point will be made available via
register read as well as a slope for back−calculating the
junction temperature value. An error of +/−5% or better over
the full specified operating range of the sensor is to be
expected.
Fast Mode Switch (Combi Mode)
To facilitate faster switching between linear and HDR
modes, the AR0230CS includes a Combi Mode feature.
When enabled, Combi Mode loads a single (HDR)
sequencer. When switching from HDR to linear modes, the
sequencer remains the same, but only the T1 image is output.
While not optimized for linear mode operation, it allows
faster mode switching as a new sequencer load is not needed.
Switching between modes may result in the output of one
bad frame.
Silicon / Firmware / Sequencer Revision Information
A revision register will be provided to read out (via I2C)
silicon and sequencer/OTPM revision information. This
will be helpful to distinguish among different lots of material
if there are future OTPM or sequencer revisions.
Analog/Digital Gain
A programmable analog gain of 1.5x to 12x (HDR) and
1.5x to 16x (linear) applied simultaneously to all color
channels will be featured along with a digital gain of 1x to
16x that may be configured on a per color channel basis.
Lens Shading Correction
The latest lens shading correction algorithm will be
included for potential low Z height applications.
Skipping/Binning Modes
Companding
The AR0230CS supports subsampling. Subsampling
allows the sensor to read out a smaller set of active pixels by
either skipping, binning, or summing pixels within the
The 16−bit linearized HDR image may be compressed to
12− or 14− bits using on−chip companding. This is useful if
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12
AR0230CS
lanes. The AR0230CS supports serial data widths of 10, 12,
14, 16, or 20 bits on one, two, or four lanes. The specification
includes a DLL to compensate for differences in group delay
for each data lane. The DLL is connected to the clock lane
and each data lane, which acts as a control master for the
output delay buffers. Once the DLL has gained phase lock,
each lane can be delayed in 1/8 unit interval (UI) steps. This
additional delay allows the user to increase the setup or hold
time at the receiver circuits and can be used to compensate
for skew introduced in PCB design. Delay compensation
may be set for clock and/or data lines in the hispi_timing
register R0x31C0. If the DLL timing adjustment is not
required, the data and clock lane delay settings should be set
to a default code of 0x0000 to reduce jitter, skew, and power
dissipation.
on−chip ALTM will not be used and the ISP cannot handle
16 bit data.
Compression
When the AR0230CS is configured for linear mode
operation, the sensor can optionally compress 12−bit data to
10−bit using A−law compression. The A−law compression
is disabled by default.
Packaging
The AR0230CS will be offered in a 10x10 80−iBGA
package (parallel and HiSPi). The package will have
anti−reflective coating on both sides of the cover glass.
Parallel Interface
The parallel pixel data interface uses these output−only
signals:
• FRAME_VALID
• LINE_VALID
• PIXCLK
• DOUT[11:0]
The parallel pixel data interface is disabled by default at
power up and after reset. It can be enabled by programming
R0x301A. When the parallel pixel data interface is in use,
the serial data output signals can be left unconnected.
Sensor Control Interface
The two−wire serial interface bus enables read/write
access to control and status registers within the AR0230CS.
The interface protocol uses a master/slave model in which
a master controls one or more slave devices. The sensor acts
as a slave device. The master generates a clock (SCLK) that
is an input to the sensor and is used to synchronize transfers.
Data is transferred between the master and the slave on a
bidirectional signal (SDATA). SDATA is pulled up to VDD_IO
off−chip by a 1.5kΩ resistor. Either the slave or master
device can drive SDATA LOW−the interface protocol
determines which device is allowed to drive SDATA at any
given time. The two−wire serial interface can run at 100 kHz
or 400 kHz.
High Speed Serial Pixel (HiSPi) Interface
The HiSPi interface supports three protocols,
Streaming−S, Streaming−SP, and Packetized SP. The
streaming protocols conform to a standard video application
where each line of active or intra−frame blanking provided
by the sensor is transmitted at the same length. The
Packetized SP protocol will transmit only the active data
ignoring line−to−line and frame−to−frame blanking data.
The HiSPi interface building block is a unidirectional
differential serial interface with four data and one double
data rate (DDR) clock lanes. One clock for every four serial
data lanes is provided for phase alignment across multiple
T1/T2 Line Interleaved Mode
The AR0230CS has the capability to output the T1 and T2
exposures separately, in a line interleaved format. The
purpose of this is to enable off chip HDR linear combination
and processing. See the AR0230CS Developer Guide for
more information.
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13
AR0230CS
80
Blue
Red
Green (B)
Green (R)
Quantum Efficiency (%)
70
60
50
40
30
20
10
0
350
450
550
650
750
850
950
1050
1150
Wavelength (nm)
Figure 8. Typical Spectral Characteristics
ELECTRICAL SPECIFICATIONS
Unless otherwise stated, the following specifications
apply under the following conditions: VDD = 1.8V –
0.10/+0.15; VDD_IO = VDD_PLL = VAA = VAA_PIX = 2.8V
± 0.3V;
VDD_SLVS = 0.4V – 0.1/+0.2; TA = −30°C to +85°C−40°C
to +105°C; output load = 10pF;
frequency = 74.25 MHz; HiSPi off.
Two−Wire Serial Register Interface
The electrical characteristics of the two−wire serial
register interface (SCLK, SDATA) are shown in Figure 9 and
Table 5.
SDATA
tLOW
tf
tr
t
SU;DAT
tf
tr
t HD;STA
tBUF
SCLK
t
S
t HD;STA
tHD;DAT t HIGH
SU;STA
Sr
t
SU;STO
Figure 9. Two−Wire Serial Bus Timing Parameters
NOTE:
Read sequence: For an 8−bit READ, read waveforms start after WRITE
command and register address are issued.
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14
P
S
AR0230CS
Table 5. TWO−WIRE SERIAL BUS CHARACTERISTICS
(fEXTCLK = 27 MHz;VDD = 1.8V; VDD_ IO = 2.8V;VAA_PIX = 2.8V;VDD_ PLL = 2.8V; TA = 25°C)
Parameter
Standard Mode
Symbol
Fast Mode
Unit
fSCL
0
100
0
400
KHz
tHD;STA
4.0
−
0.6
−
μs
LOW period of the SCLK clock
tLOW
4.7
−
1.3
−
μs
HIGH period of the SCLK clock
tHIGH
4.0
−
0.6
−
μs
Set−up time for a repeated START condition
tSU;STA
4.7
−
0.6
−
μs
Data hold time
tHD;DAT
04
3.455
06
0.95
μs
Data set−up time
tSU;DAT
250
−
1006
−
ns
tr
−
1000
20 + 0.1Cb7
300
ns
SCLK Clock Frequency
Hold time (repeated) START condition.
After this period, the first clock pulse is
generated
Rise time of both SDATA and SCLK signals
Fall time of both SDATA and SCLK signals
Set−up time for STOP condition
Bus free time between a STOP and
START condition
Capacitive load for each bus line
Serial interface input pin capacitance
SDATA max load capacitance
SDATA pull−up resistor
tf
−
300
20 + 0.1Cb7
300
ns
tSU;STO
4.0
−
0.6
−
μs
tBUF
4.7
−
1.3
−
μs
Cb
−
400
−
400
pF
CIN_SI
−
3.3
−
3.3
pF
CLOAD_SD
−
30
−
30
pF
RSD
1.5
4.7
1.5
4.7
KΩ
This table is based on I2C standard (v2.1 January 2000). Philips Semiconductor.
Two−wire control is I2C−compatible.
All values referred to VIHmin = 0.9 VDD and VILmax = 0.1VDD levels. Sensor EXCLK = 27 MHz.
A device must internally provide a hold time of at least 300 ns for the SDATA signal to bridge the undefined region of the falling edge of SCLK.
The maximum tHD;DAT has only to be met if the device does not stretch the LOW period (tLOW) of the SCLK signal.
A Fast−mode I2C−bus device can be used in a Standard−mode I2C−bus system, but the requirement tSU;DAT 250 ns must then be met.
This will automatically be the case if the device does not stretch the LOW period of the SCLK signal. If such a device does stretch the LOW
period of the SCLK signal, it must output the next data bit to the SDATA linet r max + tSU;DAT = 1000 + 250 = 1250 ns (according to the
Standard−mode I2C−bus specification) before the SCLK line is released.
7. Cb = total capacitance of one bus line in pF.
1.
2.
3.
4.
5.
6.
I/O Timing
By default, the AR0230CS launches pixel data, FV, and
LV with the falling edge of PIXCLK. The expectation is that
the user captures DOUT[11:0], FV, and LV using the rising
edge of PIXCLK.
See Figure 10 below and Table 6 for I/O timing (AC)
characteristics.
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15
AR0230CS
t
t RP
tP
tR
t FP
90%
90%
10%
10%
EXTCLK
EXTCLK
PIXCLK
t PD
Data[11:0]
LINE_VALID/
FRAME_VALID
Pxl_o
Pxl_1
Pxl_2
Pxl_n
t PLH
t PFH
t PFL
t PLL
FRAME_VALID leads LINE_VALID by 6 PIXCLKs
FRAME_VALID trails
LINE_VALID by 6 PIXCLKs
Figure 10. I/O Timing Diagram
Table 6. I/O TIMING CHARACTERISTICS
Symbol
Definition
fEXTCLK1s
Min
Typ
Input clock frequency
6
tEXTCLK1
Input clock period
20.8
tR
Input clock rise time
tF
tRP
tFP
Condition
Max
Unit
–
48
MHz
–
166
ns
–
3
–
ns
Input clock fall time
–
3
–
ns
Pixclk rise time
2
3.5
5
ns
Pixclk fall time
2
3.5
5
ns
Clock duty cycle
45
50
55
%
10
14
18
ns
74.25
MHz
tCP
EXTCLK to PIXCLK
propagation delay
Nominal voltages, PLL Disabled
fPIXCLK
PIXCLK frequency
Default, Nominal Voltages
6
tPD
PIXCLK to data valid
Default, Nominal Voltages
3.6
5.5
9.5
ns
tPFH
PIXCLK to FV HIGH
Default, Nominal Voltages
2.9
5.3
9
ns
tPLH
PIXCLK to LV HIGH
Default, Nominal Voltages
2.9
5
9
ns
tPFL
PIXCLK to FV LOW
Default, Nominal Voltages
2.9
5
9
ns
tPLL
PIXCLK to LV LOW
Default, Nominal Voltages
2.9
4.8
9
ns
<10
–
pF
2.5
–
pF
CLOAD
Output load capacitance
–
CIN
Input pin capacitance
–
1. I/O timing characteristics are measured under the following conditions:
− Temperature is 255C ambient
− 10 pF load
− 1.8V I/O supply voltage
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16
AR0230CS
DC ELECTRICAL CHARACTERISTICS
The DC electrical characteristics are shown in the tables
below.
Table 7. DC ELECTRICAL CHARACTERISTICS
Definition
Symbol
Condition
Min
VDD
Core digital voltage
1.7
VDD_IO
I/O digital voltage
1.7/2.5
VAA
Analog voltage
2.5
VAA_PIX
Pixel supply voltage
2.5
Typ
Max
Unit
1.8
1.95
V
1.8/2.8
1.9/3.1
V
2.8
3.1
V
2.8
3.1
V
VDD_PLL
PLL supply voltage
2.5
2.8
3.1
V
VDD_SLVS
HiSPi supply voltage
0.3
0.4
0.6
V
VIH
Input HIGH voltage
VDD_IO*0.7
–
–
V
VIL
Input LOW voltage
IIN
Input leakage current
VOH
–
–
VDD_IO*0.3
V
20
–
–
μA
VDD_IO−0.3
–
–
V
No pull−up resistor; VIN
= VDD_IO or DGND
Output HIGH voltage
VOL
Output LOW voltage
–
–
0.4
V
IOH
Output HIGH current
At specified VOH
−22
–
–
mA
IOL
Output LOW current
At specified VOL
–
–
22
mA
CAUTION:
Stresses greater than those listed in Table 8 may cause
permanent damage to the device. This is a stress rating only,
and functional operation of the device at these or any other
conditions above those indicated in the operational sections of
this specification is not implied.
Table 8. ABSOLUTE MAXIMUM RATINGS
Symbol
Definition
Condition
Typ
Max
Unit
VDD_MAX
Core digital voltage
−0.3
2.4
V
VDD_IO_MAX
I/O digital voltage
–0.3
4
V
VAA_MAX
Analog voltage
–0.3
4
V
VAA_PIX
Pixel supply voltage
–0.3
4
V
VDD_PLL
PLL supply voltage
–0.3
4
V
VDD_SLVS_MAX
HiSPi I/O digital voltage
–0.3
2.4
V
tST
Storage temperature
–40
85
°C
1. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Table 9. 1080p30 HDR (ALTM) 74 MHz Parallel 2.8V
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital operating current
Streaming 1080p30
IDD
1.8
90
175
220
I/O digital operating current
Streaming 1080p30
IDD_IO
2.8
10
30
50
Analog operating current
Streaming 1080p30
IAA
2.8
35
45
85
Pixel supply current
Streaming 1080p30
IAA_PIX
2.8
2
4
7
PLL supply current
Streaming 1080p30
IDD_PLL
2.8
5.5
6.2
7
Power (mW)
309
557.76
813.2
2. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL = VDD_IO = 2.8 V
− VDD = 1.8 V
− PLL Enabled and PIXCLK = 74.25 Mhz
− Low power mode enabled
− TA = 25°C
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17
AR0230CS
Table 10. 1080p30 Linear 74MHz Parallel 2.8V
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital operating current
Streaming 1080p30
IDD
1.8
75
107
145
I/O digital operating current
Streaming 1080p30
IDD_IO
2.8
10
30
50
Analog operating current
Streaming 1080p30
IAA
2.8
20
30
50
Pixel supply current
Streaming 1080p30
IAA_PIX
2.8
1
3
7
PLL supply current
Streaming 1080p30
IDD_PLL
2.8
5.5
6.2
7
Power (mW)
237.2
386.36
580.2
3. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL = VDD_IO =2.8 V
− VDD= 1.8 V
− PLL Enabled and PIXCLK = 74.25 MHz
− Low power mode enabled
− TA = 25°C
Table 11. 1080p30 HDR (ALTM) 74MHz Parallel 1.8V
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital operating current
Streaming 1080p30
IDD
1.8
90
175
220
I/O digital operating current
Streaming 1080p30
IDD_IO
1.8
10
20
30
Analog operating current
Streaming 1080p30
IAA
2.8
35
45
85
Pixel supply current
Streaming 1080p30
IAA_PIX
2.8
2
4
7
PLL supply current
Streaming 1080p30
IDD_PLL
2.8
5.5
6.2
7
Power (mW)
299
509.76
727.2
4. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL = 2.8 V
− VDD = VDD_IO= 1.8 V
− PLL Enabled and PIXCLK = 74.25 MHz
− Low power mode enabled
− TA = 25°C
Table 12. 1080p30 Linear 74 MHz Parallel 1.8V
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital operating current
Streaming 1080p30
IDD
1.8
75
107
145
I/O digital operating current
Streaming 1080p30
IDD_OIO
1.8
10
20
30
Analog operating current
Streaming 1080p30
IAA
2.8
20
30
50
Pixel supply current
Streaming 1080p30
IDD_PIX
2.8
1
3
7
PLL supply current
Streaming 1080p30
IDD_PLL
2.8
5.5
6.2
7
Power (mW)
227.2
338.36
494.2
5. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL =2.8 V
− VDD = VDD_IO= 1.8 V
− PLL Enabled and PIXCLK = 74.25 MHz
− Low power mode enabled
− TA = 25°C
Table 13. 1080p30 HDR (ALTM) 74 MHz HiSPi SLVS (Low Power Mode)
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
145
175
235
Analog Operating Current
Streaming 1080p30
IAA
2.8
25
46
65
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
4
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
6
7.4
8.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
0.4
3
9
14
Power (mW)
351.8
479.32
654
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18
AR0230CS
6. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL = 2.8 V
− VDD = VDD_IO= 1.8 V
− VDD_SLVS= 0.4V
− PLL Enabled and PIXCLK = 37.125 MHz
− 4−lane HiSPi mode
− Low power mode enabled
− TA = 25°C
Table 14. 1080p30 Linear 74 MHz HiSPi SLVS
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
75
115
155
Analog Operating Current
Streaming 1080p30
IAA
2.8
20
30
50
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
3
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
6
7.4
8.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
0.4
3
9
14
Power (mW)
211.8
323.72
468
7. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL =2.8 V
− VDD = VDD_IO= 1.8 V
− VDD_SLVS= 0.4V
− PLL Enabled and PIXCLK = 74.25 MHz
− 4−lane HiSPi mode
− Low power mode enabled
− TA = 25°C
Table 15. 1080p30 HDR (ALTM) 74 MHz HiSPi HiVcm (Low Power Mode)
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
145
175
235
Analog Operating Current
Streaming 1080p30
IAA
2.8
25
46
65
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
4
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
6
7.4
8.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
1.8
10
20
30
Power (mW)
368.6
511.72
702.4
8. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL =2.8 V
− VDD = VDD_IO = VDD_SLVS = 1.8 V
− PLL Enabled and PIXCLK = 37.125 MHz
− 4−lane HiSPi mode
− Low power mode enabled
− TA = 25°C
Table 16. 1080p30 Linear 74Mhz HiSPi HiVcm
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
75
115
155
Analog Operating Current
Streaming 1080p30
IAA
2.8
20
30
50
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
3
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
6
7.4
8.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
9. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL =2.8 V
− VDD = VDD_IO = VDD_SLVS= 1.8 V
− PLL Enabled and PIXCLK = 74.25 MHz
− 4−lane HiSPi mode
− Low power mode enabled
− TA = 25°C
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19
1.8
10
20
30
Power (mW)
228.6
356.12
516.4
AR0230CS
Table 17. Line Interleaved HiSPi SLVS
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
185
230
265
Analog Operating Current
Streaming 1080p30
IAA
2.8
20
36
55
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
3.3
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
7
8.2
9.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
0.4
3
9
14
Power (mW)
412.6
550.6
668.8
10. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL =2.8 V
− VDD = VDD_IO= 1.8 V
− VDD_SLVS= 0.4 V
− PLL Enabled and PIXCLK = 74.25 MHz
− 4−lane HiSPi mode
− TA= 25°C
Table 18. Line Interleaved HiSPi HiVcm
Definition
Condition
Symbol
Voltage
Min
Typ
Max
Digital Operating Current
Streaming 1080p30
IDD
1.8
185
230
265
Analog Operating Current
Streaming 1080p30
IAA
2.8
20
36
55
Pixel Supply Current
Streaming 1080p30
IAA_PIX
2.8
1
3.3
7
PLL Supply Current
Streaming 1080p30
IDD_PLL
2.8
7
8.2
9.5
SLVS Supply Current
Streaming 1080p30
IDD_SLVS
1.8
10
20
30
Power (mW)
429.4
583
717.2
11. Operating currents are measured in mA at the following conditions:
− VAA = VAA_PIX = VDD_PLL = 2.8 V
− VDD= VDD_IO = 1.8 V
− VDD_SLVS = 1.8 V
− PLL Enabled and PIXCLK = 74.25 MHz
− 4−lane HiSPi mode
− TA= 25°C
HiSPi Electrical Specifications
The ON Semiconductor AR0230CS sensor supports both
SLVS and HiVCM HiSPi modes. Refer to the High−Speed
Serial Pixel (HiSPi) Interface Physical Layer Specification
v2.00.00 for electrical definitions, specifications, and
timing information. The VDD_SLVS supply in this datasheet
corresponds to VDD_TX in the HiSPi Physical Layer
Specification. Similarly, VDD is equivalent to VDD_HiSPi as
referenced in the specification. The DLL as implemented on
AR0230CS is limited in the number of available delay steps
and differs from the HiSPi specification as described in this
section.
Table 19. CHANNEL SKEW
(Measurement Conditions: _VDD_HiSPi = 1.8V;VDD_HiSPi_TX = 0.4V; Data Rate = 480 Mbps; DLL set to 0)
Data Lane Skew in Reference to Clock
tCHSKEW1PHY
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20
−150
ps
AR0230CS
POWER−ON RESET AND STANDBY TIMING
Power−Up Sequence
6. After the last power supply is stable, enable
EXTCLK.
7. Assert RESET_BAR for at least 1ms. The parallel
interface will be tri−stated during this time.
8. Wait 150000 EXTCLKs (for internal initialization
into software standby.
9. Configure PLL, output, and image settings to
desired values.
10. Wait 1ms for the PLL to lock.
11. Set streaming mode (R0x301a[2] = 1).
The recommended power−up sequence for the
AR0230CS is shown in Figure 11. The available power
supplies (VDD_IO, VDD, VDD_SLVS, VDD_PLL, VAA,
VAA_PIX) must have the separation specified below.
1. Turn on VDD_PLL power supply.
2. After 100μs, turn on VAA and VAA_PIX power
supply.
3. After 100μs, turn on VDD_IO power supply.
4. After 100μs, turn on VDD power supply.
5. After 100μs, turn on VDD_SLVS power supply.
VDD_PLL (2.8)
t0
VAA_PIX
VAA_(2.8)
t1
VDD_IO (1.8/2.8)
VDD(1.8)
t2
t3
VDD_SLVS (0.4)
EXTCLK
t4
RESET_BAR
tx
t5
Internal
Initialization
Hard Reset
t6
Software
Standby
PLL Lock
Streaming
Figure 11. Power Up
Table 20. POWER−UP SEQUENCE
Definition
Symbol
Minimum
Typical
Maximum
Unit
VDD_PLL to VAA/VAA_PIX
t0
0
100
−
ms
VAA/VAA_PIX to VDD_IO
t1
0
100
−
ms
VDD_IO to VDD
t2
0
100
−
ms
VDD to VDD_SLVS
t3
0
100
−
ms
Xtal settle time
tx
−
30
−
ms
Hard Reset
t4
1
–
−
ms
Internal Initialization
t5
150000
–
−
EXTCLKs
PLL Lock Time
t6
1
–
−
ms
12. Xtal settling time is component−dependent, usually taking about 10 – 100 ms.
13. Hard reset time is the minimum time required after power rails are settled. In a circuit where Hard reset is held down by RC circuit, then the
RC time must include the all power rail settle time and Xtal settle time.
14. It is critical that VDD_PLL is not powered up after the other power supplies. It must be powered before or at least at the same time as the
others. If the case happens that VDD_PLL is powered after other supplies then sensor may have functionality issues and will experience high
current draw on this supply.
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21
AR0230CS
2. The soft standby state is reached after the current
row or frame, depending on configuration, has
ended.
3. Turn off VDD_SLVS.
4. Turn off VDD.
5. Turn off VDD_IO.
6. Turn off VAA/VAA_PIX.
7. Turn off VDD_PLL.
Power−Down Sequence
The recommended power−down sequence for the
AR0230CS is shown in Figure 12. The available power
supplies (VDD_IO, VDD, VDD_SLVS, VDD_PLL, VAA,
VAA_PIX) must have the separation specified below.
1. Disable streaming if output is active by setting
standby R0x301a[2] = 0
VDD_SLVS (0.4)
t0
VDD(1.8)
t1
VDD_IO(1.8/2.8)
t2
VAA_PIX
VAA(2.8)
t3
VDD_PLL (2.8)
EXTCLK
t4
Power Down until next Power up cycle
Figure 12. Power Down
Table 21. POWER−DOWN SEQUENCE
Definition
Symbol
Minimum
Typical
Maximum
Unit
VDD_SLVS to VDD
t0
0
−
−
ms
VDD to VDD_IO
t1
0
−
−
ms
VDD_IO to VAA/VAA_PIX
t2
0
−
−
ms
VAA/VAA_PIX to VDD_PLL
t3
0
−
−
ms
Power Down until Next Power Up Time
t4
100
−
−
ms
t4 is required between power down and next power up
time; all decoupling caps from regulators must be
completely discharged.
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22
AR0230CS
IBGA80 10x10
CASE 503AN
ISSUE O
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23
AR0230CS
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