The PS2705-1 is an optically coupled isolator containing a GaAs light emitting diode and an NPN silicon phototransistor.
This package is SOP (Small Outline Package) type and has shield effect to cut off ambient light.
It is designed for high density mounting applications.

*AC input response
*High isolation voltage (BV = 3 750 Vr.m.s.)
*High current transfer ratio (CTR = 100 % TYP.)
*SOP (Small Outline Package) type
*High-speed switching (tr = 3 μs TYP., tf = 5 μs TYP.)
*Ordering number of taping product : PS2705-1-F3, F4
*UL approved: File No. E72422 (S)
*VDE0884 approved (Option)

*Hybrid IC
*FA/OA equipment
*Programmable logic controllers
*Power supply

PS2705-1-V, PS2705-1-A, PS2705-1-V-A

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 The MT90502 Multi-Channel AAL2 SAR bridges a standard TDM (Time Division Multiplexed) backplane to a standard ATM (Asynchronous Transfer Mode) bus.
The device provides the CPS (Common Part Sublayer) and SAR (Segmentation and Reassembly) engines.
The MT90502 has the capability of simultaneously processing 1023 bi-directional CIDs (AAL2 Channel Identifiers) and 1023 bi-directional VCs (Virtual Circuits).
The device can be connected directly to an H.110 compatible bus.
The TDM bus consists of 32 bi-directional serial data streams operating at 2.048, 4.096, or 8.192 Mbits/s.
The MT90502 directly accepts G.711 PCM (Pulse Code Modulation) and G.726 ADPCM (Adaptive Differential Pulse Code Modulation) traffic for packetisation.
For these two data formats, the device also implements silence suppression and comfort noise generation.
To support other voice compression algorithms, the MT90502 connects directly to commercially available DSPs through synchronous serial data streams.
The Variable Bit Rate (VBR) traffic is HDLC encapsulated and carried over the serial data streams.
The interface to the ATM domain is provided by three UTOPIA Level 1 ports (Ports A, B, and C). All three of the UTOPIA ports can operate in ATM (master) or PHY (slave) mode. Ports A and B combined, architects a compliant UTOPIA Level 2 Multi-PHY port.
The MT90502 provides the capability of routing ATM cells to different UTOPIA interfaces, SAR engine or CPU.
This feature can be used to connect another MT90502 (to support up to 2046 CID channels or 2046 phone calls) and/or to connect an external AAL1 and/or AAL5 SAR.

* AAL2 Segmentation Reassembly device capable of simultaneously processing up to 1023 active CIDs (AAL2 Channel Identifier) and 1023 active VCs (Virtual Circuits).
* Support for up to 255 CIDs per VC. Maximum of 1023 CIDs.
* Implements AAL2 Common Part Sub-layer (CPS) functions specified in ITU I.363.2.
* Implements AAL2 Service Specific Convergence Sub-layer (SSCS) functions for G.711 PCM and G.726 ADPCM voice.
* Supports 44-byte PCM or ADPCM packet profiles specified in AF-VMOA-0145.00.
* CPS packet payload can support up to 64-bytes.
* Supports over-subscription of 10:1.
* H.100/H.110 compatible TDM bus for PCM or ADPCM data. Supports both master and slave TDM bus clock operation.
* TDM bus also supports compressed voice such as ITU G.723, G.728 and G.729 through HDLC encapsulation.
* Three UTOPIA Level 1 ports configurable as PHY or ATM allowing for connection to an external AAL5 SAR processor, or for chaining multiple MT90502 devices. Ports A & B are configurable as a single 8-bit UTOPIA Level 2 PHY port with 5 ADDR lines.
* UTOPIA module provides a cell switching function with a header translation.
* Performs silence suppression for PCM and ADPCM.
* Comfort noise generation.
* Capability to inject and recover CPS packets through the CPU host processor bus.
* 8-bit or 16-bit microprocessor port, configurable to Motorola or Intel timing.
* Single rail 3.3 V, 456 PBGA.
* IEEE 1149 (JTAG) interface.

* Gateway
* ATM Edge Switch
* Next Generation Digital Loop Carrier
* Multiservice Switching Platform
* 3rd Generation Mobile System Equipment


TAG channel, Multi

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 The GS1582 is the next generation multi-standard serializer with an integrated cable driver.
The device provides robust parallel to serial conversion, generating a SMPTE 292M/259M-C compliant serial digital output signal.
The integrated cable driver features an output disable (high impedance) mode and an adjustable signal swing.
Data input is accepted in 20-bit parallel format or 10-bit parallel format. An associated parallel clock input must be provided at the appropriate operating frequency; 74.25/74.1758/13.5MHz (20-bit mode) or 148.5/148.352/27MHz (10-bit mode).
The GS1582 features an internal PLL which, if desired, can be configured for a loop bandwidth below 100kHz.
When used in conjunction with the GO1555 Voltage Controlled Oscillator, the GS1582 can tolerate well in excess of 300ps jitter on the input PCLK and still provide output jitter within SMPTE specifications.
In addition to serializing the input, the GS1582 performs NRZ-to-NRZI encoding and scrambling as per SMPTE 292M/259M-C when operating in SMPTE mode.
When operating in DVB-ASI mode, the device will insert K28.5 sync characters and 8b/10b encode the data prior to serialization.
The device also provides a range of other data processing functions.
All processing features are optional and may be enabled/disabled via external control pin(s) and/or host interface programming.
The GS1582 can embed up to 8 channels of audio into the video data stream in accordance with SMPTE 299M and SMPTE 272M.
The audio input signal formats supported by the device include AES/EBU and I2S serial digital formats with a 16, 20 or 24 bit sample size and a 48 kHz sample rate.
Additional audio processing features include individual channel enable, channel swap, group swap, ECC generation and audio channel status insertion.
Typical power consumption, including the GO1555 VCO, is 500mW.
The standby feature allows the power to be reduced to 125mW.
Power may be reduced to less than 10mW by also removing the power to the cable driver and eliminating transitions at the parallel data and clock inputs.
The GS1582 is Pb-free and RoHS compliant.

Key Features
* HD-SDI, SD-SDI, DVB-ASI transmitter with audio embedding
* Integrated SMPTE 292M and 259M-C compliant cable driver
* Integrated ClockCleaner™
* User selectable video processing features, including:
* Generic ancillary data insertion
* Support for HVF or EIA/CEA-861 timing input
* Automatic standard detection and indication
* Enhanced SMPTE 352M payload identifier generation and insertion
* TRS, CRC, ANC data checksum, and line number calculation and insertion
* EDH packet generation and insertion
* Illegal code remapping
* SMPTE 292M and SMPTE 259M-C compliant scrambling and NRZ → NRZI encoding
* Blanking of input HANC and VANC space
* User selectable audio processing features, including:
* SMPTE 299M and SMPTE 272M-A/C compliant audio embedding
* Support for up to 8 channels
* Support for audio group replacement
* JTAG test interface
* 1.8V core and 3.3V charge pump power supply
* 1.8V and 3.3V digital I/O support
* Low power standby mode
* Operating temperature range: -20oC to +85oC
* Pb-free, RoHS compliant, 11mm x 11mm 100-ball BGA package

* SMPTE 292M and SMPTE 259M-C Serial Digital Interfaces
* DVB-ASI Serial Digital Interfaces


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 The Envy24TM is a versatile PCI multi-channel I/O controller.
It allows up to 12x2 simultaneous input and output channels with the data source or destination beingeit her analog or digital.
Some of the typical applications for this part are computer based multi-track audio, multi-channel audio, PC-based data acquisition, waveform generation and computer telephony integration.
The Envy24 can be combined with professional grade I²S converters, S/PDIF transmitters/receivers or AC-link codecs, such as the VT1611ATM.
The controller integrates a very high resolution digital mixer allowing up to 20 channels of mixing.
This is aimed specifically for monitoring final outputs, making master copies and for budget conscious studios that may lack an individual out-board mixer.
The Envy24 supplies a master I²C interface providingconnection to an E²PROM to store and retrieve PCI Subsystem and Subsystem vendor IDs, specific board configurations and custom features identification.
This interface is available for controllingother devices as well.
For target markets where legacy audio is still important, the SoundBlaster Pro compatible hardware ensures hardware compatibility under DOS for DDMA (Distributed DMA) and non-DDMA systems.
The device also includes a Microsoft Win9x architecture based DirectSound hardware accelerator that interfaces to AC’97 via AC-link.
The separate path allows concurrent operation with the 24-bit professional multi-track audio section.
The Envy24 is a “Digital-Ready” audio device allowing acceleration in cooperation with the host and redirecting audio streams to other endpoints.
The Envy24 integrates two independent MPU-401 MIDI UARTs.
This features allows hooking up multiple external MIDI devices and dedicatingthe two paths for different purposes.
Additionally, a conventional standard Joystick port and timer is integrated.
Only R and C components are necessary to complete the circuit.
Also an 8-bit GPIO brings flexibility for multi-purpose use.
The Envy24 is a power miser device due to its aggressive power management scheme and hard-wired design architecture.
The device is ACPI compliant makingit suitable for platforms designed for “OnNow”.
Dependingon the samplingra tes that need to be supported by the target solution, one or two crystals are sufficient to operate the whole system.
Alternatively, a PLL Clock synthesizer chip can be used to generate the necessary frequencies.
The clock chip can be controlled by the GPIO pins for programmability.

Product Features
* PCI 2.1 I/F with bus masteringand burst modes
* 24-bit resolution audio format support
* Samplingrates up to 96kHz
* 8x2 I/O on AC-link or I²S, up to 4x2 converters
* Simultaneous I²S for S/PDIF I/O up to 96kHz
* 20 channels, 36-bit wide digital mixer
* Monitor and master copy functions
* Peak meters on all 20 professional multi-track streams
* Concurrent 16 streams DirectSoundTM accelerator
* Sample Rate Converter for DirectSound applications
* Two MPU-401 MIDI UART ports
* ACPI and PCI PMI support
* I²C subset I/F for E²PROM (configuration and ID storage) and peripherals control
* HW SoundBlaster® Pro legacy
* FM synthesis for DOS® legacy
* 64-voices SW Wavetable General MIDI Synthesizer for Windows95
* DirectInputTM compatible Joystick port
* 8-bit GPIO port
* Windows® 95/98, NT4.0 drivers
* 24.576, 16.9344 or 22.5792 MHz crystal operation
* 3.3V operatingsupply (5V tolerant I/O)
* 128-pin PQFP (14mm x 20mm body)

Product Applications
* PC-based multi-track audio
* Discrete multi-channel audio
* High-end PCI audio
* “Pro-sumer” audio
* General purpose multi-channel I/O
* Computer telephony
* PC-based data acquisition
* PC-based waveform generation
* PC-based instrumentation
* PC-based control and automation


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