MT9P111 Datasheet, PDF (6/67 Pages) ON Semiconductor – Digital Image Sensor

MT9P111: 1/4-inch 5 Mp SOC Digital Image Sensor
MT9P111 Overview
MT9P111 Overview
The MT9P111 has a color image sensor with a Bayer color filter arrangement and a 5Mp
active-pixel array with electronic rolling shutter (ERS). The sensor core readout is 12-bit,
supports skipping and binning, and can be flipped and/or mirrored. The sensor core
also supports separate analog and digital gain for all four color channels
(R, Gr, Gb, B).
The MT9P111 also has an embedded phase-locked loop oscillator (PLL) that can
generate the internal sensor clock from the common clock signals available in typical
mobile phone systems. When in use, the PLL adjusts the incoming clock frequency up,
allowing the MT9P111 to run at almost any desired resolution and frame rate within the
sensor's capabilities. The PLL can be bypassed and powered down to reduce power
consumption.
The MT9P111 has numerous power-conserving features including a soft standby mode
and a hard standby mode. In standby mode, the sensor can be configured to consume
less power than normal operation, with the option of retaining a limited amount of the
internal configuration settings. By default, entering standby disables the internal VDD
power rail. In addition, there is a SHUTDOWN mode that will disable the power supplies
in order to achieve the lowest power consumption possible.
The MT9P111 can be used with either a serial MIPI interface or the parallel data output
interface, which has a programmable I/O slew rate to minimize EMI and an output FIFO
to eliminate output data bursts. JPEG format can be output in both the MIPI and the
parallel data output interfaces. EXIF, MIPI data type support is also included, along with
Scalado support.
The advanced image flow processor (IFP) and flexible programmability of the MT9P111
provide a variety of ways to enhance and optimize the image sensor performance. Built-
in optimization algorithms enable the MT9P111 to operate at factory settings as a fully
automatic, highly adaptable camera; however, most of its settings are user-program-
mable.
These algorithms include black level conditioning, shading correction, defect correc-
tion, noise reduction, color interpolation, color correction, aperture correction, and
image formatting such as cropping and scaling.
The MT9P111 also includes a sequencer that coordinates all events triggered by the user.
The sequencer manages auto focus, auto white balance, flicker detection, anti-shake,
and auto exposure for the different operating modes, which include preview, still
capture, video, and snapshot with flash.
All modes of operation are individually configurable and are organized as two contexts.
A context is defined by sensor image size, frame rate, resolution, and other associated
parameters. The user can switch between the two contexts by sending a command
through the two-wire serial interface.
A two-wire serial register interface bus enables read/write access to control registers,
variables, and special function registers within the MT9P111. The hardware registers
include sensor core controls, color pipeline controls, and output controls.
The general purpose VGPIO can be configured to allow the user extended platform func-
tionality or achieve a 10-bit parallel Bayer output.
MT9P111_DS Rev. G Pub. 5/15 EN
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