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TI Analog Connection
Your monthly update of new Analog products from TI
August 2006
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Data Converters
Power Management
Amplifiers
& Linear
Low-Power
RF
Interface
White Paper: Audio Compression
Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
DATA CONVERTERS
Low-Noise, 18-Bit, 1-MSPS Parallel SAR ADC: The ADS8482 includes an 18-bit capacitor-based SAR A/D converter with differential (pseudo-bipolar) input, inherent sample and hold, built-in low drift reference, reference buffer and conversion clock. The ADS8482 also has improved competitive AC/DC performance. For measurement applications, it offers excellent DC stability vs. temperature--0.05ppm/°C offset drift TC and 0.5ppm/°C gain drift TC.
- ±2.5LSB Max INL
- +1.5/-1LSB Max DNL
- Applications: Medical Imaging, Industrial Process Control, Automatic Test Equipment, Optical Networking
16-Bit, 500-kSPS, Low-Power ADC: The ADS8327, a low-power (10.6mW) SAR ADC with unipolar input, offers a wide voltage serial interface and is capable of chain mode operation.
- Analog Supply Range: 2.7V to 5.5V
- INL: ±2LSB (max); DNL: ±1LSB (max)
- Applications: Communications, Medical Instruments, Data Acquisition Systems
Low-Noise, Low-Glitch, 16-Bit Multiplying DAC: The DAC8832 is an ultra low- power, single-channel, 16-bit, high accuracy, serial-input, voltage-output DAC operating from a single 3-V to 5-V power supply. The DAC8832 has unbuffered voltage output.
- ±1 LSB MAX INL and DNL
- Low Glitch: 10 nV-S; Low Noise: 18 nV/√Hz
- Applications: Industrial Process Control, Automatic Test Equipment, General Data Acquisition, Optical Networking, Portable
14-Bit, Parallel Input, Multiplying DAC: The DAC8806 is a single-channel, 4-quadrant multiplying DAC featuring fast 0.5µs settling time, high-speed parallel interface and wide +2.7-V to +5.5-V power supply range, making it ideal for low-power applications.
- INL: ±1LSB (max)
- Micropower Operation: 5µA at 5V
- Applications: Closed-Loop Monitoring and Control, Process Control, Data Acquisition Systems
High-End Audio Sample Rate Converters: The SRC4392 and SRC4382 are combo asynchronous sample rate converters with an AES Digital Interface Receiver (DIR) and an AES Digital Interface Transmitter (DIT). Flexible audio interfaces allow connection to a wide range of audio data converters and digital signal processors.
- SRC4392 Dynamic Range: 144dB; THD+N: -140dB
- SRC4382 Dynamic Range: 128dB; THD+N: -125dB
- Wide Sampling Range Ratio: 16:1 to 1:16
- Applications: Digital Mixing Consoles, Broadcast Studio Equipment, A/V Receivers
SRC4392: Price (1 ku) $9.95
Stereo, Digital Audio Lip Sync Delay with I²C Control: Designed to provide 170ms of digital audio delay for A/V systems, the TPA5050 is easy to use and requires only one external component. Capable of one-sample delay resolution, the device makes any audio delay imperceptible to the ear.
- Digital Audio Formats: 16- to 24-bit I²S, Right-Justified, Left-Justified
- Delay Time:170ms/ch at fs = 48kHz
- Applications: HDTV, Wireless Speakers, A/V Systems
24-Bit, 96-kHz, High-Performance Stereo Audio ADC: The PCM1808 is a high-performance, low-cost, stereo ADC with single-ended analog voltage input. It features -65dB stopband attenuation, ±0.05dB passband ripple, 256-, 384- or 512-fs sampling rate and it supports left-justified and I²S data formats.
- SNR: 101dB (typ) at fs = 96kHz
- THD+N: -93dB (typ)
- Applications: DVD Recorders, Digital TV, Mini Component Stereo Systems, Car Navigation/Audio
IF Down Converter IC for CATV: The SN761688 is a low-distortion, monolithic IC designed for the out-of-band tuner of a CATV. The circuit integrates an RF AGC amplifier, mixer and IF amplifier.
- Wide Gain-Range RF AGC Amplifier
- Mixer for Down Conversion
- Applications: CATV Tuner, Set-Top Box
POWER MANAGEMENT
Green-Mode, Quasi-Resonant Controller: The UCC28600 is a green mode quasi-resonant PWM controller for offline AC/DC power supplies. It offers advanced features such as high gate drive current, frequency fold back at light loads and burst mode, making it efficient at all output power levels including no load.
- Efficient, Quasi-Resonant Operation (Up to 89% Efficient)
- High Gate Drive Capability with TrueDrive™: 1A+ Source; 750mA Sink
- Applications: Power Supplies, AC/DC Adapters, Bias Supplies for LCD Monitors
High-Frequency, 4-A Sink, Synchronous MOSFET Driver: The TPS28225 is a high-speed driver for N-channel complimentary driver power MOSFETs with adaptive dead-time (14ns) control and low EMI emissions. The driver is optimized for use in a variety of high-current and multi-phase DC/DC converters.
- Wide Gate Drive Voltage: 4.5V to 8.8V; Best at 7V to 8V
- High Current Source: 2A
- Applications: Multi-Phase DC/DC Converters, Desktop and Server VRMs and EVRDs
2nd-Generation Impedance Track™: The bq20z90 battery fuel gauge IC measures the charge and discharge activity of a battery and calculates its remaining capacity. When combined with the bq29330, an analog front-end protector IC, the chipset provides all reporting functions and protects the individual cells of an Li-Ion or Li-Polymer battery pack.
- Reduced External Components
- Drives up to 5 LEDs
- Supports SHA-1 Authentication
- Applications: Notebook Computers, Data Loggers, Medical and Test Equipment
1-A, 1-Cell Li-Ion Charge Management IC: The bq2402x bqTINY™ series are highly integrated charge management ICs that enable battery charging from either an AC adapter or USB port input. They integrate a 1-A charge FET and reverse-blocking circuitry, as well as Charge Enable (CE) and Power Good (PG) functions.
- 3-mm x 3-mm QFN Package
- Selectable 100-mA and 500-mA Charge Rates
- Applications: PDAs, MP3 Players, Digital Cameras, Internet Appliances
1.5-A, Step-Down DC/DC Converters: The TPS6251x family are high-efficiency, step-down converters targeted for operation from a 1.6-V to 3.8-V input voltage rail. They are ideally suited for 2-cell alkaline or NiMHd applications and POL regulators running from a fixed 3.3-V, 2.5-V or 1.8-V input voltage rail.
- Output Current: Up to 1500mA
- “Out of Audio” Operation Minimizes Interference
- Applications: Portable Media Players, Hard Disk Drives, WiMAX and WLAN
3-Channel Boost Supply for Large LCD Displays: The TPS6510x series offers a compact power supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. An auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.
- Input Voltage Range: 2.7V to 5.5V
- Switching Frequency: 1.6MHz Fixed
- Internal Power-On Sequencing and Softstart
- Applications: TFT LCD Display Monitors, Portable DVD Players, Car Navigation Systems
Highly Integrated Battery and Power Management IC: The TPS65820 is a fully integrated battery management and power conversion solution for 1-cell, Li-Ion battery-powered systems. Features include a 1.5A battery charger, two 600mA step-down converters, one boost type white LED driver, ADC, fast I²C serial interface and a SIM card supply.
- Boost converter for up to 6 White LED’s
- 3 High PSRR LDOs, 3 General-Purpose LDOs
- 8-Channel 10-bit ADC
- Applications: Smartphones, Portable Media Player, Digital Radio, GPS
200-mA, Low Quiescent Current, High-PSRR LDO: The TPS799xx family of low-dropout (LDO), low-power linear regulators offer excellent AC performance with very low ground current. Features include 40µA quiescent current, 29.5µVrms ultra-low noise, 66dB at 1kHz high PSRR and 100mV low dropout.
- Available in Fixed and Adjustable Output Versions: From 1.2V to 6.5V
- Fast Start-Up Time: 45µs
- Overall Accuracy (Line/Load/Temp): 2%
- Applications: WLAN, Mobile Handset, Bluetooth, PDAs, RF-Sensitive Applications
1-A LDO with Low Noise and High PSRR: The TPS796xx family of LDOs features high PSRR (53dB at 10kHz), excellent line and load transient responses and very low quiescent current, 265µA (typ).
- Fixed Voltages: 1.8, 2.5, 2.8, 3, 3.3, 5V and Adjustable
- Ultra Low Noise: 40µV
- Applications: Battery-Powered Devices, POL for FPGA/DSP and Processors, TF Equipment
Single-Output, Isolated DC/DC Converter Series: The PTQA4 series of isolated DC/DC converters are housed in an industry-standard quarter-brick package and are rated up to 100W with load currents as high as 30A. They are available in 2.5V/30A and 3.3V/30A output models and offer up to 92% efficiency.
- 48-V Input (36-V to 75-V Range)
- 1500VDC I/O Isolation Voltage
- Applications: Telecom Central Office Applications, Datacom, Wireless, Optical
PTQA430033x: Price (1 ku) $35.00
AMPLIFIERS & LINEAR
0.5°C Accurate, Digital-Out Temp Sensor: The TMP275 is a ±0.5°C accurate, two-wire serial output temperature sensor that is SMbus-compatible and allows up to 8 devices on one bus. It operates over a 2.7-V to 5.5-V supply range, has user-selectable 9- to 12-bit resolution and low 50µA quiescent current.
- Accuracy: ± 0.5°C (max) from +10°C to +85°C
- Standby: 0.1µA
- Fast Conversion Time: 40ms
- Applications: Servers, Base Stations, HDTV, Storage Area Networks, HVAC
Sensor Signal Conditioning for Closed-Loop Magnetic Current Sensor: The DRV401 is a highly integrated analog circuit that is designed for use with magnetic current sensors from VACUUMSCHMELZE GmbH & Co. KG (VAC). The DRV401 advances VAC technology by increasing dynamic range, improving accuracy and reducing the size, cost, and complexity.
- 5-V Single Supply Operation
- Linearity Error < 0.1%
- Applications: Power Generation, Power Control, Power Distribution, Battery Charging, Electric Vehicles, Motor Control, Industrial Automation, Manufacturing Processes, Uninterruptible Power Supplies
LOW-POWER RF
CC1100/1150DK Development Kit: The CC1100/1150DK is a complete development tool for developing applications based on the CC1100 transceiver and/or the CC1150 transmitter.
- Includes all required hardware and software to evaluate, demonstrate, prototype and develop various applications for the ISM band. Also included is required hardware for testing RF performance and prototyping applications.
- The kit is available in two versions for the 433 MHz and 868/915 MHz frequency range.
CC2500/CC2550DK Development Kit: The CC2500/2550DK is a complete development tool for developing applications based on the CC2500 transceiver and/or the CC2550 transmitter.
- This development kit,designed to help achieve objectives as quickly as possible, lets the engineer evaluate SmartRF®04 products, perform RF measurements and develop a prototype.
- A complete development kit contains 2 SmartRF®04 evaluation boards, 2 CC2500EM evaluation modules, 1 CC2550EM evaluation module, antennas and cables.
INTERFACE
3.3-V/5-V High-Speed Capacitive Digital Isolators: The ISO722 is a digital isolator that provides an isolation barrier up to 4000V. Working in conjunction with isolated power supplies, these devices prevent noise currents on data buses or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
- Isolation: 4000Vpeak
- Transient Immunity: 25kV/µs (min)
- Signaling Rate: 0Mbps to 150Mbps
- Applications: Industrial Fieldbus, Computer Peripheral Interface, Motor Control
FlatLink™ 3G Transmitter for Phone Video Displays: The FlatLink 3G SN65LVDS301 device transmits video from the applications processor to the LCD display of a mobile phone. It serializes single-ended parallel data into 1, 2 or 3 low EMI, sub-LVDS lines, beneficial for clamshell phones. It features 24-bit true color and is configurable to support screen resolutions from QVGA up to XGA including HVGA and VGA.
- Device Data Throughput: Up to 1755Mbits/s
- Applications: Mobile Phones, Portable/Handheld Multimedia Players/Gaming
FlatLink™3G Receiver for Video Phone Displays: The SN65LVDS302 receiver de-serializes FlatLink™3G-compliant serial input data to 27 parallel data outputs. The receiver contains one shift register to load 30 bits from 1, 2 or 3 serial inputs and latches the 24 pixel bits and 3 control bits out to the parallel CMOS outputs after checking the parity bit.
- Data Throughput Rate: Up to 1755Mbits/s
- Pixel Clock Range: 4MHz - 65MHz
- Applications: Mobile Phones, Portable/Handheld Multimedia Players/Gaming
1.8-V to 5-V Dual UART With 16-Byte FIFOs: The TL16C2552 is a dual UART with each UART having its own register set and FIFOs, sharing only the data bus interface and clock source. Complete modem control capability and a processor interrupt system provide flexibility for different application needs.
- Programmable Auto-RTS and Auto-CTS
- Programmable Baud Rates up to 1.5MBaud (24MHz Input Clock)
- Applications: POS Terminals, Gaming Terminals, Router Control, Factory Automation
1-Gbps to 4.25-Gbps Limiting Equalizer with LOS: The TLK4201EA, a versatile, high-speed limiting equalizer with LOS for applications in digital high-speed links, is suitable to receive 4.25Gbps data over 36 inches of FR4 PC board interconnects or up to 30 feet of CX-4 copper cable. High input signal dynamic range ensures low jitter output even when overdriven with input signal swings as high as 2000mVp-p.
- Compensates Up to 12dB Loss at 2.1GHz
- Applications: High Speed Data Communication Links, Backplanes, Fiber Channel Systems
WHITE PAPER: Audio Compression
White Paper Provides Audio Compression Algorithm Overview: Digital compression algorithms are designed to produce a digital representation of an audio signal that, when decoded and reproduced, sounds the same as the original signal and uses a minimum of digital information (bit-rate) for the compressed (or encoded) representation. This white paper “Audio Compression Algorithms,” by Ambika Ammal, discusses different compression algorithms as well as basic principles of design.
TRAINING AND SEMINARS
All-New Power Supply Design Seminars Begin in September: These one-day highly technical seminars will give you an array of advanced new power supply concepts, basic design principles and real-world application examples. Presented by a select group of top power supply specialists within the power management product design and applications teams worldwide, these seminars are valuable for the new designer as well as the experienced design engineer. Register now at: www.ti.com/powerseminars2006
New TI Analog Design Center: From online training and webcasts to device selection, design, simulation and samples, TI's new Analog Design Center provides intuitive tools to help you identify the best solutions for your needs. Easily go from online training or a Webcast to quick search or parametric search. In addition, use TI's selection guides and solutions guides to help you find the optimal devices for your design. Move to a working solution using TI's design tools, reference designs and calculation utilities. Next, perform in-depth behavioral analysis of your design using TINA-TI, a fully functional version of TINA loaded with a library of TI macro models.
Whatever design stage you’re in, TI can help. Visit TI's new Analog Design Center at www.ti.com/analogdesigncenter.
ZigBee™ Training Classes: This hands-on, two-day course in Waltham, MA and Seoul, Korea will provide a solid foundation both in ZigBee protocol and in Z-Stack-based product development. Get face-to-face access to expert assistance and answers that address your specific needs. Even if you are currently just evaluating ZigBee, our training course is designed to get you started the right way.
COMPANY
AUTHORED ARTICLES IN THE MEDIA
“Dave's
2 Cents: So many choices …,” by Dave Freeman, Portable
Design.
“Designing class-D audio amplifiers into portable applications,” by Nick Holland, Greg Hupp & Andy Liang, Planet Analog.
CUSTOMER SUPPORT CONTACT INFORMATION
| Product Information Center | - Americas |
| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
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