General Description
 The HT82A832R is an 8-bit high performance RISC-like microcontroller designed for USB Phone product applications.
The HT82A832R combines a 16-bit PCM ADC, USB transceiver, SIE (Serial Interface Engine),
audio class processing unit, FIFO and an 8-bit MCU into a single chip.
The DAC in the HT82A832R operates at a sampling rate of 48kHz/8kHz and the 16-bit PCM ADC
operates at 8kHz for the Microphone input.
For the DAC, the HT82A832R has a digital programmable gain amplifier.
The gain range is from -32dB to +6dB. For the ADC input, the digital gain range is from 0dB to 19.5dB.

Features
* Operating voltage: fSYS = 6M/12MHz: 3.3V~5.5V
* 24 bidirectional I/O lines (max.)
* Two 16*bit programmable timer/event counters and overflow interrupts
* 4096x15 program memory ROM
* 192x8 data memory RAM (Bank 0)
* USB 2.0 full speed compatible
* USB spec V1.1 full speed operation and USB audio device class spec V1.0
* Embedded high*performance 16 bit PCM ADC
* Built*in Digital PGA (Programmable Gain Amplifier)
* 48kHz/8kHz sampling rate for audio playback controlled by software option
* 8kHz audio recording sampling rate
* Embedded class AB speaker driver power amplifier
* Embedded High Performance 16 bit audio DAC
* Supports audio playback digital volume control
* 5 endpoints supported (endpoint 0 included)
* Supports 1 Control, 2 Interrupt, 2 Isochronous transfer
* Two hardware implemented Isochronous transfers
* Total FIFO size: 464 bytes (8, 8, 384, 32, 32 for EP0~EP4)
* Programmable frequency divider (PFD)
* Integrated SPI hardware circuit
* Play/Record Interrupt
* HALT and wake*up features reduce power consumption
* Watchdog Timer
* 16*level subroutine nesting
* Bit manipulation instruction
* 15*bit table read instruction
* 63 powerful instructions
* All instructions executed within one or two machine cycles
* Low voltage reset function (3.0V0.3V)
* 48*pin SSOP/LQFP package

 

HT82A832R - USB Audio MCU

DESCRIPTION
 The UTC PA0202 is a monolithic integrated circuit that stereo bridged audio power amplifiers capable of producing 2 W into 3Ω with a 5V supply voltage or 800mW into 3Ω with a 3.3V supply
voltage.
The UTC PA0202 simplifies design and frees up board space for other features.
Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in UTC PA0202, that reduce clicks and pops noise during power up or shutdown mode operation.
A MUX control terminal (HP/LINE) allows selection between the two sets of stereo input signals.
To simplify the audio system design, UTC PA0202 combines a stereo bridge-tied loads (BTL)mode for speaker drive and a stereo single-end (SE)mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal.

FEATURES
* Improves depop circuitry to eliminate turn-on and turn-off transients in output
* Output power:
- 2W(typ.)@5V into 3Ω with 0.2% THD+N max (1kHz)
- 800mW(typ.)@3.3V into 3Ω with 0.2% THD+N max (1kHz)
* Fully specified for use with 3-Ω Loads
* Stereo switchable bridged/single-ended power amplifiers
* Input MUX select terminal
* Thermal-shutdown protection
* Shutdown mode available

PA0202-N24-R
PA0202-N24-T
PA0202L-N24-R
PA0202L-N24-T  

PA0202 - 2-W STEREO AUDIO POWER AMPLIFIER WITH MUTE

Description
 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

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

GS1582-IBE3

 

GS1582 - Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleaner™

General Description
HT82V733 is an integrated class AB mono speaker driver contained in an SOP-8 package.
The device is fabricated in a CMOS process and has been primarily developed for portable digital audio applications.

Features
* High signal-to-noise ratio
* High slew rate
* Low distortion
* Large output voltage swing
* Excellent power supply ripple rejection
* Low power consumption
* Short-circuit elimination
* Wide temperature operating range
* No switch ON/OFF clicks
* Low standby current
* Power off control
* Direct drive speaker
* 8-pin SOP package

 

HT82V733 - 240mA Audio Power Amp

Overview
 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

VT1712-128PQFP

 

VT1712 - PCI Multi-Channel Audio Controller