OV7910 PDF

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Both devices support composite video and S-Video. A minimum of external components are required to complete a fully functional camera subsystem. These products are ideal for all applications requiring a small footprint, low voltage, low power and low cost color or black and white video camera. Tel: Fax: e-mail: info ovt. Pin No. Default may be changed by applying external bias to this pin. CLK is asserted on this pin during active image period. Adding a pullup resistor on this pin enables frame sync.

Adding a pullup resistor on this pin enables I2C control. Must be decoupled with 0. F capacitor to analog ground. Internal reference. Table 2 below shows how to configure the standard of choice. Please note Table 2. Note: Color format configuration is valid only for the OVP image sensor 1. Table 3 below summarizes the formats available and the settings required on the appropriate pins.

December 7, Version 1. The image sensor reads the input the pins at power up, which enables user-defined default configurations. By default, the I2C port is disabled. Fast AWB updates color every 2 fields while slow 1. If able only through the I2C port. By using the I2C port, the color temperature may be further fine tuned to the requirement of the application.

G2X pin 19 can then be used to enhance the AGC gain range. All of these functions except power down can be configured either by an external pin or through the I2C interface. These functions may also be controlled through the I2C interface. Spectrum Response December 7, Version 1. Video Timing Diagram 10 Version 1.

Note that the restart feature is not supported here. SDA is configured as open drain for bidirectional purpose. If the read data is the last byte, the master does not perform an acknowledge, indicating to the slave below. The master must supply the subaddress. In multi-byte write or multi-byte read cycles, the subaddress is automatically increment after the first data byte so that continuous locations can be accessed in one bus cycle. A multi-byte cycle overwrites its original subaddress; therefore, if a read cycle immediately follows a multi-byte cycle, you must insert a single-byte write cycle that provides a new subaddress.

The ID is preset to 80 write and 81 for read. In the write cycle, the second byte in I2C bus is the subaddress for selecting the individual on-chip registers, and the third byte is the data associated with this register.

Writing to an undefined subaddress is ignored. In the read cycle, the second byte is the data associated with the previous stored subaddress. Reading of undefined subaddresses returns unknown data. Table 5. If AGC is enabled, the internal control stores the optimal gain value in this register. Storage for the current blue channel setting for white balance control. BLU[] — blue channel gain balance value.

Storage for the current red channel setting for white balance control. RED[] — red channel balance value. SAT[] — saturation adjustment. Initiate soft reset. All registers are set to default values and chip is reset to known state and resumes normal operation. This bit is automatically cleared after reset. OmniVision Technologies, Inc. No part of this publication may be copied or reproduced, in any form without the prior written consent of OmniVision Technologies, Inc.


OV7910 PDF



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