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SQ930C

High-Speed USB 2.0 Video Camera Controller

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1. INTRODUCTION

SQ930C

High-Speed USB 2.0 Video Camera Controller

1.1 General Description

The SQ930C High-Speed USB 2.0 Video Camera Controller is a highly integrated and cost-effective

solution designed for USB 2.0 PC Camera based applications. It can interface to major brands of CMOS

sensors with VGA / 1.3M pixels.

The SQ930C is designed for USB 2.0, the mainstream specification of personal computers. Without the

restrictions of USB 1.1 PC camera on USB band width, the SQ930C controller fully expresses the

advantage of USB 2.0 on band width (about 40X times faster than USB 1.1). It is also fully compliant with

USB 1.1 specification. The SQ930C utilizes lossless compression to achieve the best image quality.

With an embedded high-efficient JPEG encoder engine; the transmission rate can achieve 30 frames per

second at VGA raw data mode. Based on SQ years of experiences in image processing technology, the

SQ930C will be the best solution for PC camera manufacturers.

1.2 Features

Hardware

Fully compliant with high-speed USB 2.0 specification and 1.1 specification

Supports varieties of CMOS sensor

Movie mode (@ 60MHz)

- JPEG 30fps @ VGA (USB1.1/2.0)

- Raw data 30fps @ VGA (USB 2.0)

Built-in JPEG encoder

Embedded SRAM for image buffer to save overall system cost

Supports global/color gain control

Supports Operation Bias(OB)

8032 CPU

- Compatible with industry standard 803x/805x

- Standard 8051 instruction set

- Control signals for standard 803x/805x I/O ports

- 4 clocks/instruction cycle

Embedded 256 bytes SRAM for CPU

Embedded 32K bytes ROM for CPU

One button shot (still image capture)

Supports external EEPROM for PID/VID

Uses USB bus power

Operation clock: USB PIE & CPU at 30Mhz, others at 60Mhz

Subject to Change Without Notice.

PAGE 4

Version 1.3 - April 22nd , 2005

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