Features: ·Single-Chip CCD and Video Signal Processor
·10-Bit, 28-MSPS, A/D-Converter Single 3-V Supply Operation
·Very Low Power: 150 mW Typical, 2-mW Power-Down Mode
·Differential Nonlinearity Error: < ±0.5 LSB Typical
·Integral Nonlinearity Error: <±0.9 LSB Typical
·Programmable Gain Amplifier (PGA) With 0-dB to 36-dB Gain Range (0.045 dB/Step)
·Automatic or Programmable Optical Black Level and Offset Calibration With Digital Filter and Bad Pixel Limits
·Additional DACs for External Analog Setting
·Serial Interface for Register Configuration
·Internal-Reference Voltages
·48-Pin TQFP PackageApplication· Video CamcorderSpecificationsSupply voltage, AVDD, DVDD, DIVDD . . . . . . . . . . . . . . . . . 0.3 V to 6.5 V
Analog input voltage range . . . . . . . . . . . . . . . . . . . 0.3 V to AVDD+0.3 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . .0.3 V to DVDD+0.3 V
Operating virtual junction temperature range, TJ . . . . . . .. . 40to 150
Operating free-air temperature range, TA . . . . . . . . . .. . . 20 to 75
Storage temperature range, Tstg . . . . . .. . . . . . . . . . . . . 65 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . 260
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DescriptionThe TLV990B is a complete CCD and video signal processor/digitizer designed for video camcorder applications. The TLV990B performs all the analog-processing functions necessary to maximize the dynamic range, corrects various errors associated with the CCD sensor, and then digitizes the results with an on-chip high-speed analog-to-digital converter (ADC).
The key components of the TLV990B include: an input clamp circuit for CCD and analog video signals, a correlated double sampler (CDS), a programmable-gain amplifier (PGA) with 0 to 36-dB gain range, two internal digital-to-analog converters (DAC) for automatic or programmable optical black level and offset calibration, a 10 bit, 28-MSPS pipeline ADC, a parallel data port for easy microprocessor interface, a serial port for configuring internal control registers, two additional DACs for external system control, and internal reference voltages.
Designed in advanced CMOS process, the TLV990B operates from a single 3-V power supply with a normal power consumption of 150 mW at 28 MSPS, and 2 mW in power-down mode.
Its very high throughput rate, single 3-V operation, very low-power consumption, and fully-integrated analog processing circuitry make the TLV990B an ideal CCD and video signal-processing solution for electronic video-camcorder applications.
This device is available in a 48-pin TQFP package and is specified over a 20 to 75operating temperature range.
TLV990B Data Sheet
