Texas Instruments

Mixed Signal & Analog Showcase
Blue Band
Mixed Signal & Analog Showcase Inside:
Showcase (Volume 29) is available in HTML and PDF format. - 330KB

Integrated shift register
    and 8-channel peripheral
    driver.
Intelligent quad high-side
    driver.
Class-D audio amplifier sets
    new standards in efficiency.
Programmable D/A allows
    for speed/power optimization.
Industry's first
    programmable resolution A/D.

High-speed 10-bit A/D with
    glueless DSP interface 90-mA
    loads
16-bit A/D D/A analog
    front-end.
UART provides quad-channel
    integration and 64-byte FIFO
Fully compliant 4-port
    USB hub.
USB power distribution
    features independant switches.
Dual low dropout regulator
    with integrated processor
    resets.
Programmable-sychronous buck
    regulator addresses advanced
    microprocessor power needs.
High performance DSP
    power controller
Low-voltage audio power amps
    designed for stero headphone
    applications.
SOT-23 50mA low-dropout
    regulator.
3-channel power supply
    supervisors.


Industry's first programmable resolution
analog-to-digital converter

Product features

  • Reconfigurable:
      2 MSPS @ 10 bit,
      3 MSPS @ 8 bit,
      7 MSPS @ 4 bit
  • Wide input bandwidth for undersampling 120 MHz @ –3 dB
  • Low operating supply current:
      3.5 mA @ 5.5 V (10 MHz)
  • Simultaneous sample and hold
  • Programmable conversion modes
The industry’s first high-speed, programmable resolution analog-to-digital converter (ADC) redefines system design for digital signal processor (DSP) applications.

The TLV1562 provides flexibility and ultimately, a first-to-market DSP solution for portable digital radios, paging systems, process and motor controls, remote sensing, automotive systems, servo controls and communications systems such as wireless local loops.

The resolution and sampling speed of the TLV1562 can be set to change dynamically during operation. Any of the three following combinations can be programmed: 10 bits resolution at 2 million samples per second (MSPS); 8 bits at 3 MSPS; and 4 bits at 7 MSPS. In addition, the device features a unique dual sample/hold (S/H) architecture enabling it to output a continuous stream of digital data for long periods of time. Its dual S/H channels can also be configured to minimize interrupt latency, thereby providing the flexibility to optimize it for your specific application.

The converter also includes an internal code-conversion capability that offloads processing tasks from the DSP for improved system performance. The TLV1562 itself converts binary code into two’s complement code and outputs this directly to the DSP, eliminating the need for the DSP to expend execution cycles on code conversion. It also offers a wide input bandwith (75 MHz at –1 dB and >120 MHz at –3 dB) making it ideal for undersampling applications. Furthermore, it has programmable conversion modes, both interrupt driven and continuous modes, optimizing it for MIPS sensitive DSP applications.

Finally, the TLV1562 has a wide power supply range from 2.7 V to 5.5 V. In power-sensitive applications, such as mobile systems, the TLV1562 offers power consumption as low as 5 milliamps for 2.7-V systems or 8.5 milliamps for 5.5-V systems. It also has a DSP and microprocessor compatible DSP interface.

The TLV1562 is available in 28-pin TSSOP and SOIC packages.

TI offers ADCs and DACs that are compatible with our family of powerful DSPs. A selection tool is available for choosing the best Data Converter for your application: www.ti.com/sc/dsps



The TLV1562 provides flexibility and ultimately, a first-to-market DSP solution for portable digital radios, paging systems, process and motor controls, remote sensing, automotive systems, servo controls and communications systems such as wireless local loops.

TI&ME

Vol 29 November, 1998

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
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