TLV990-40 Texas instruments

TLV990-40

Уточнить цену

TLV990-40

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The TLV990-40 is a complete CCD and video signal processor/digitizer designed for digital still camera and video camcorder applications. The TLV990-40 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 TLV990-40 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, 40-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 TLV990-40 operates from a single 3-V power supply with a normal power consumption of 200 mW at 40 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 TLV990-40 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°C to 75°C operating-temperature range.

Single-Chip CCD Analog Front-End
10-Bit, 40-MSPS, A/D-Converter Single 3-V Supply Operation
Very Low Power: 200 mW Typical, 2-mW Power-Down Mode
Differential Nonlinearity Error:
< ±0.6 LSB Typical
Integral Nonlinearity Error: <±1.75 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 Package
Application
- Digital Still Camera
- Video Camcorder

The test register must be set to 1011 for 40 MSPS operation.

Resolution (Bits)	10
Number of channels	1
Sample rate (Msps)	40
Gain (min) (dB)	0
Gain (max) (dB)	36
Pd (typ) (mW)	200
Supply voltage (max) (V)	3.3
Operating temperature range (°C)	-20 to 75
Output data format	CMOS Parallel
Rating	Catalog