CX93610 Datasheet, PDF (1/2 Pages) Conexant Systems, Inc – PIR Sensor with Video

CX93610
DIFT JPEG Encoder with a 656 Camera Interface and
Optional Microphone Input
The CX93610 is a monolithic mixed
signal Application-Specific Standard
Product (ASSP) designed for low cost
and low power motion detection
surveillance camera applications, as
well as home monitoring/remote
monitoring applications. Used with an
external CMOS image sensor, the
CX93610 offers a variety of specialized
JPEG encoding techniques to highly
compress and save image data in an
internal 512KB/256KB frame buffer. An
optional 2:1 and 4:1 scaler is available
for image re-sizing. In addition, a 4:2:0
sub-sampling conversion is available to
further reduce image file sizes. With a
microphone input and programmable
allocated buffering, a 2- or 4-bit
ADPCM audio session can be recorded
simultaneously during image captures.
The stored images and audio data are
then passed on to an external
microprocessor for uploading to a
desired medium.
The CX93610 is controlled through a
simple register set via the
microprocessor interface, and the
variety of available interfaces (Serial
Peripheral Interface [SPI], UART, and
I²C) allow for wide flexibility in
microprocessor selection. With both
digital and analog photocell sensor
inputs available, the CX93610 can
facilitate the measurement of ambient
light and use an on-chip LED driver to
control an external infrared LED during
low-light conditions. With low cost, low
power, and high image compression
capability, the CX93610 is ideally
suited for security and monitoring
applications.
Key Features
Integrated mixed-signal design for analog-to-
digital image processing
On-chip 512KB/256KB frame buffer
Supports enhanced JPEG compression
techniques and >1MP CMOS sensors and
processes both color and black and white
images
DIFT Encoded JPEG reduces file sizes by up
to 99 percent
Low sleep mode power - 10nA and low
operating power (target <15mA)
Frame by Frame Motion Detection with
programmable thresholds
Integrated analog components (ADCs, LCD
driver)
I²C, SPI, and UART interfaces for flexible
connectivity
Register-driven device
Optional microphone input records audio
session simultaneously during image
captures
Benefits
No External components required for image
conversion
No external RAM required
Provides excellent image processing up to 30
fps
Applications
‹ PIR Sensor with Video
‹ Video Intercom/Door Phone
‹ Baby monitor applications
‹ Remote home monitoring
‹ Low-end surveillance camera
Faster transfer time and longer battery life
Longer battery life and energy-efficient design
generates less heat.
Enhances monitoring by alerting host of
activity
No analog components required
Allows for wide selection of microprocessors
Simple operation, no CPU
Provides complete A/V solution with flexible
frame buffer for audio and video data storage
Part Number CX93610
Description DIFT JPEG Encoder
with a 656 Camera Interface and
Optional Microphone Input