Article List :  2008/10 : 65 posted

ADS-325A - 10-Bit, 20MHz Sampling A/D Converter

C&D Technologies 2008/10/31 09:48

GENERAL DESCRIPTION
DATEL's ADS-325A is a low power, 10-bit, 20MHz, CMOS sampling A/D converter. Its small 48 pin plastic LQFP package contains a S/H amplifier, a 3-state output register, linearity calibration circuitry, and all necessary control logic. Only two external reference voltages, an A/D clock and a few digital inputs are required. The A/D clock may be applied with 50% duty cycle.
The excellent dynamic performance includes a spurious free dynamic range of 65dB and a signal-to-noise ratio with distortion of 54dB with a 3MHz input. ADS-325A is capable of operating from a single +5V power supply and typically consumes only 150mW. It can also operate from a +5V analog VS with +3.3V digital VS enabling an interface with 3.3V logic circuitry. The ADS-325A is ideally suited for high quality video/CCD imaging applications.

FEATURES
*10-bit, 20MHz sampling
*±1LSB max. differential nonlinearity
*Internal calibration circuit
*Internal S/H amplifier
*70MHz input bandwidth
*TTL/CMOS compatible in-out logic
*Latched three-state output data
*Single +5V supply
*Low 150mW power dissipation
*Small 48 pin LQFP package
*Low cost

 

ADS-325A - 10-Bit, 20MHz Sampling A/D Converter

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TAG A/D, Converter


PCM1796 - 24-BIT, 192kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-ANALOG CONVERTER

Burr-Brown 2008/10/31 09:40

DESCRIPTION
The PCM1796 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1796 provides balanced current outputs, allowing the user to optimize analog performance externally. The PCM1796 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1796 also
interfaces with external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port, which supports register write and readback functions. The PCM1796 also supports the time division multiplexed command and audio (TDMCA) data format.

FEATURES
*24-Bit Resolution
*Analog Performance:
- Dynamic Range: 123 dB
- THD+N: 0.0005%
*Differential Current Output: 4 mA p-p
*8× Oversampling Digital Filter:
- Stop-Band Attenuation: –98 dB
- Pass-Band Ripple: ±0.0002 dB
*Sampling Frequency: 10 kHz to 200 kHz
*System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
*Accepts 16-, 20-, and 24-Bit Audio Data
*PCM Data Formats: Standard, I2S, and Left-Justified
*DSD Format Interface Available
*Interface Available for Optional External Digital Filter or DSP
*TDMCA or Serial Port (SPI/I2C)
*User-Programmable Mode Controls:
- Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
- Digital De-Emphasis
- Digital Filter Rolloff: Sharp or Slow
- Soft Mute
- Zero Flag for Each Output
*Compatible With PCM1792 (Pins and Mode Controls)
*Dual Supply Operation:
- 5-V Analog, 3.3-V Digital
*5-V Tolerant Digital Inputs
*Small 28-Lead SSOP Package

APPLICATIONS
*A/V Receivers
*SACD Players
*DVD Players
*HDTV Receivers
*Car Audio Systems
*Digital Multitrack Recorders
*Other Applications Requiring 24-Bit Audio

PCM1796DB, PCM1796DBR  

PCM1796 - 24-BIT, 192kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-ANALOG CONVERTER

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BCM56580 - 16 × 2.5 GbE + 4 × 10 GbE ETHERNET MULTILAYER SWITCH

Broadcom 2008/10/31 09:30

DESCRIPTION
The BCM56580 network switch is a high-density, 2.5-Gigabit Ethernet switching chip solution with 20 ports. Additionally, the BCM56580 integrates all the SerDes required to interface to applicable copper and fiber physical interfaces. The integrated SerDes functionality includes 10-Gbps XAUI interfaces and 2.5/1-Gbps SGMII PHY interfaces. The integrated SerDes complies with the CX-4 standard and PICMG3.1 standard, which ensures interoperability with Ethernet line cards in an advanced TCA chassis.
With 80 Gbps of aggregate switching bandwidth, BCM56580 represents a high level of Ethernet switching integration that enables embedded switching vendors to extend the life of their  existing GbE system designs by providing a performance upgrade using the same physical enclosures and backplanes. This ability has many benefits, including reducing the vendor development cost and creating additional value in current generation systems through upgradability.
The BCM56580's low power dissipation simplifies board design and optimizes vendor board space.
The advanced ContentAware engine supports ToS/DiffServ, policybased routing, priority tagging, and remapping. The advanced packet filtering and classification functions of the BCM56580 make it ideal for Utility computing applications, where user segregation and network
security is critical.
In addition, the BCM56580 provides advanced security features that improve network resiliency and reliability. Moreover, the BCM56580 features advanced load balancing functionality that uses flow information to provide high-percentage link utilization.
The BCM56580 supports L2 switching with 4K VLANs, IPv4 and IPv6 full routing functionality, enabling it to become a direct extension of the enterprise network. This provides additional value to customers by eliminating the hardware and management cost of having intermediate
routers.
As the latest member of the StrataXGS switch family, the BCM56580 Software Development Kit preserves software continuity with Gigabit Ethernet switches, reducing development cost and shortening the product time-to-market.
The BCM56580 implements congestion handling features such as Head- Of-Line blocking prevention and IEEE 802.3x flow control.
In addition to a 32-bit PCI interface used to communicate with a local CPU, the BCM56580 supports an I2C controller for communicating with external devices such as serial EEPROM, flash memories, and parallel port devices.
The BCM56580 relies on Broadcom’s modular switching architecture to provide intelligent packet processing, network security, and enhanced manageability at a low cost. The BCM56580 is an ideal solution for nextgeneration, high-speed, embedded switching applications, such as Blade Servers and advanced TCA chassis platforms.

FEATURES
*16 × 2.5-GbE/1-GbE and 4 × 10-GbE/2.5-GbE/1-GbE ports
*Based on StrataXGS® field-proven, robust architecture
*Integrated high-performance SerDes
- Integrated XAUI™ SerDes for all 10-GbE ports
- Integrated single-lane SerDes for all 2.5-GbE ports
*80-Gbps switching capacity at line rate
*Support for eight classes of service (CoS) per port
*Support for Deficit Round Robin, Weighted Round Robin, and Strict priority scheduling
*Support for a cut-through switching mode
*Port trunking and remote mirroring support
*Fully integrated data and address memory on a single chip
*Advanced packet flow control
- Head of line blocking prevention
- Full-duplex flow control (802.3x)
*ContentAware™ network processing per port
- Line rate multifield packet classification
- Supports IEEE 802.1p, TOS/DiffServ, rate limiting, policing, priority tagging, and remapping
- Extended security and ACL filtering
*Full IPv6 routing support
*Enhanced security and management capabilities
*Low power consumption

APPLICATIONS
*Embedded switch in next-generation 2.5 GbE Blade Servers
*2.5 GbE/1 GbE switching engine in advanced TCA chassis platforms
*Embedded switch to enhance performance of existing Gigabit Ethernet Blade Servers or advanced TCA chassis  

BCM56580 - 16 × 2.5 GbE + 4 × 10 GbE ETHERNET MULTILAYER SWITCH

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TAG ETHERNET


VRBC-10F2Ax - NON-ISOLATED DC/DC CONVERTERS

Bel Fuse 2008/10/30 09:47

Description
The Bel VRBC-10F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 10 A of output current with full load efficiency of 94% at 3.3 Vdc output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4 Vdc - 5.5 Vdc). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, remote sense, over current protection, short current protection, wide input, and programmable output voltage.

Features
*Non-Isolated
*Under-Voltage Lockout (UVLO)
*High Efficiency
*Wide Input Range
*High Power Density
*Wide Trim Range
*Fixed Frequency (300kHz)
*Remote On/Off
*OCP/SCP
*Remote Sense
*Flexible Output Voltage Sequencing
*Converter Can Sink and Source Current
*Over Temperature Protection
*Active Low/High (Option)

VRBC-10F2AL, VRBC-10F2A0
 

VRBC-10F2Ax - NON-ISOLATED DC/DC CONVERTERS

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TAG DC/DC


AT24C128B - Two-wire Serial EEPROM 128K (16,384 x 8)

Atmel 2008/10/30 09:36

Description
The AT24C128B provides 131,072 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 16,384 words of 8 bits each. The device’s cascadable feature allows up to eight devices to share a common two-wire bus. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini MAP, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball dBGA2 packages. In addition, the entire family is available in a 1.8V (5.5V to 3.6V)
version.

Features
*Low-voltage and Standard-voltage Operation
*1.8 (VCC = 1.8V to 5.5V)
*Internally Organized as 16,384 x 8
*Two-wire Serial Interface
*Schmitt Trigger, Filtered Inputs for Noise Suppression
*Bidirectional Data Transfer Protocol
*1 MHz (5.5V, 2.5V), and 400 kHz (1.8V) Compatibility
*Write Protect Pin for Hardware and Software Data Protection
*64-byte Page Write Mode (Partial Page Writes Allowed)
*Self-timed Write Cycle (5 ms Max)
*High Reliability
*Endurance: One Million Write Cycles
*Data Retention: 40 Years
*Lead-free/Halogen-free
*8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini MAP, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball dBGA2 Packages
*Die Sales: Wafer Form, Tape and Reel and Bumped Wafers

AT24C128B-PU, AT24C128BN-SH-B, AT24C128BN-SH-T, AT24C128B-TH-B, AT24C128B-TH-T, AT24C128BY6-YH-T, AT24C128BD3-DH-T, AT24C128BU2-UU-T, AT24C128B-W-11  

AT24C128B - Two-wire Serial EEPROM 128K (16,384 x 8)

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TAG EEPROM, Serial



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