OV420 companion ASIC product brief
Compact Companion ASIC
for Medical Imaging Applications
lead free
available in
a lead-free
package
The OV420 is a single chip solution for the OV6930-
based medical applications. The OV420 provides an
integrated analog-to-digital data conversion using a
built-in A/D converter (ADC), black level calibration
(BLC), lens correction (LENC), defect pixel correction
(DPC), AEC/AGC and digital video parallel output (DVP).
As shown in figure 2-1, the OV420 supports a standard
SCCB interface to communicate with the system and
manipulate the above mentioned functions.
During operation, the OV420 decodes the proprietary
analog output from the OV6930 and digitizes it by an
ADC. The generated digital signals will then be
processed by a digital signal processor (DSP) and finally,
standard DVP outputs are sent out.
Find out more at www.ovt.com.
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Medical Endoscopes
Industrial Endoscopes
¬ Veterinarian Endoscopes
Applications
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low cost, single-chip solution for the
OV6930 medical sensor
SCCB slave and master support
high bandwidth ADC,
supporting up to 16MHz
supports 10-bit digital parallel output
low voltage, 1.8V (core), 3.3V (analog)
and 3.3V (I/O) operation
external system clock or independent
crystal operation
auto gain/exposure control
black level calibration (BLC)
test pattern generator
digital signal processor (DSP)
RAW output with 10-bit parallel
digital video port (DVP)
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Product Features ¬OV00420-A36G
(lead-free, 36-pin wCSP™)
Ordering Information
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power supply:
- core: 1.8V ±5%
- I/O: 3.3V ±10%
- analog: 3.3V ±10%
power requirements:
- active: 16 mA (typical)
- standby: 65 µA (typical)
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temperature range: -30°C to +70°C
package dimensions:
3.17 mm x 3.17 mm
Product Specifications
OV420
Version 1.0, July, 2017
OmniVision reserves the right to make changes to their products or to discontinue any product or
service without further notice. OmniVision and the OmniVision logo are registered trademarks of
OmniVision Technologies, Inc. wCSP is a trademark of OmniVision Technologies, Inc. All other
trademarks are the property of their respective owners.
4275 Burton Drive
Santa Clara, CA 95054
USA
Tel: + 1 408 567 3000
Fax: + 1 408 567 3001
www.ovt.com
Functional Block Diagram
OV6930
image
sensor
customer
medical
system
OV420
ADC memory
controller BLC DSP DVP
SCCB
serial
interface
SCCB
master
system
control
SCCB
slave
AEC/AGC
PLL
