H2R Electronics

• Small pop noise when standby switches ON/OFF
• Built-in circuit to prevent ripple addition when motor starts
• Built-in thermal shutdown circuit
• Built-in standby switch circuit
• Built-in soft clip circuit

Audio, Consumer Electronics

• Floating channel designed for bootstrap operation
• Fully operational to +500V or +600V
• Tolerant to negative transient voltage dV/dt immune
• Gate drive supply range from 10 to 20V
• Undervoltage lockout for both channels
• 3.3V logic compatible
• CMOS Schmitt-triggered inputs with pull-down
• Cycle by cycle edge-triggered shutdown logic
• Matched propagation delay for both channels
• Outputs in phase with inputs

• High-Speed Switching Performance: Enables fast response times in circuits, making it suitable for high-frequency applications like communication devices and quick-switching networks.
• Low Power Consumption: Contributes to energy savings, especially in battery-powered devices.
• High Reliability: Its robust construction and thermal stability allow it to operate effectively even in demanding conditions like high temperatures.
• Compact Design: The DIP package allows for easy integration into various circuit boards and helps create smaller electronic devices. 

• Integrated Audio Processing and Amplification: It combines digital audio processing and amplification functionalities on a single chip, making it a complete solution for digital audio streaming from the source to the speaker.
• High Efficiency (Class D Amplification): The IC utilizes Class D amplification for high efficiency and low power dissipation.
• Flexible Power Output Configurations: It supports various output configurations, including stereo (2 x 30W into 8Ω), 2.1 channel (2 x 15W + 1 x 30W), and stereo plus line-out options.
• FFX® Technology: The STA369BW incorporates STMicroelectronics' FFX® technology for high-quality audio conversion from PCM to PWM, providing over 100 dB SNR and dynamic range.
• Digital Signal Processing (DSP) Capabilities: It features an embedded 24-bit DSP with up to 8 user-programmable biquads (EQ) per channel for advanced audio processing and sound enrichment.
• Dynamic Range Control (DRC): Includes dual-band DRC (B2DRC) that dynamically equalizes the system for linear frequency response, along with independent limiters/compressors.
• Audio Presets: Provides a variety of built-in audio presets like crossover filters, anti-clipping modes, and nighttime listening mode for reduced software development and faster time-to-market.
• Wide Range Supply Voltage: Operates within a supply voltage range of 5V to 26V (operating) and has an absolute maximum rating of 30V.
• I²C Control and I²S Input: Features an I²C control interface for easy configuration and an I²S input data interface to accept various audio formats.
• Protection Features: Includes embedded thermal overload and short-circuit protection for reliability and safety. 

• Class-D Technology: Offers high efficiency and low dissipation. 
• Dual-Channel or Mono BTL: Can be configured as a stereo amplifier or a single, higher-power mono bridge-tied load amplifier. 
• High Power Output: Delivers significant power, for example, 2x80W or 2x110W, depending on the specific variant and power supply. 
• Wide Operating Voltage: Designed to work with a broad supply voltage range, from ±12.5V to ±30V. 
• Low Power Consumption: Features a low quiescent current. 
• Built-in Protections: Includes overvoltage, overtemperature, and overcurrent protection for system robustness. 
• Mode Control: A MODE pin allows switching between Standby (very low current), Mute (audio suppressed), and fully operational modes. 

• Multi-mode Control:The L6566 can operate in both fixed-frequency (FF) and quasi-resonant (QR) modes, offering flexibility in design and application. 
• Flyback Converters:It's specifically designed for flyback converters, which are widely used in power supplies for various applications like adapters, chargers, and industrial power supplies. 
• Single-Stage PFC:The L6566 is also suitable for single-stage power factor correction (PFC) converters, enabling compliance with standards like EN61000-3-2. 
• SMD Package:The "SMD" designation means the L6566 is a surface mount device, typically found in a 16-SOIC (0.154, 3.90mm Width) package, making it suitable for automated assembly. 

FR6311 is an audio signal processor for home audio. This IC contains 6 channels of electronic volume, gain control, input selector, and 2 band tone control.

FR6311 is a pin to pin compatible chip for R2S15902FP

Features
• 6 channels independent electronic volume (0 to –99dB/1dBstep, –∞dB)
• 6 channels independent gain control (0 to +14dB/ 2dB step)
• L/R channel 4 input selector (Input gain: 0 to +14dB/ 2dB step)
• Multi channel input: 6 channels input
• Tone control Bass: –14 to + 14dB(2dB step),
Treble: –14 to + 14dB(2dB step)
• Can use 1 input for REC output (REC output gain: 0, +2, +4, +6dB)
• Built-in ADC output (Input Att: 0/ –6/ –12/ –18dB)
• Built-in L+R/ L–R block
• Built-in digital power supply

The 33999 is a 16-output low-side switch with a 24-bit serial input control. It is designed for a variety of applications including inductive, incandescent, and LED loads. The Serial Peripheral Interface (SPI) provides both input control and diagnostic readout. Eight parallel inputs are also provided for direct Pulse Width Modulation (PWM) control of eight dedicated outputs. Additionally, an output-programmable PWM input provides PWM of any combination of outputs. A dedicated reset input provides the ability to clear all internal registers and turn all outputs off.

The 33999 directly interfaces with microcontrollers and is compatible with both 3.3 V and 5.0 V CMOS logic levels. The 33999, in effect, serves as a bus expander and buffer with fault management features that reduces the MCU’s fault management burden. This device is powered by SMARTMOS technology.



Features

• Designed to operate 5.0 V < VPWR < 27 V

• 24-Bit SPI for control and fault reporting, 3.3 V/5.0 V compatible

• Outputs Are Current Limited (0.9 A to 2.5 A) to Drive Incandescent

  lamps

• Output voltage clamp of +50 V during inductive switching

• On/Off control of open load detect current (LED application)

• VPWR standby current < 10 A

• RDS(on) of 0.55  at 25 °C typical

• Independent overtemperature protection

• Output selectable for PWM control

• Output ON short-to-VBAT and OFF short-to-ground/open detection

• 54-Pin Exposed Pad Package for Thermal Performance

CXD9788AR is a single-chip fax engine product manufactured by Sony. The following is detailed information about CXD9788AR: 

. The CXD9788AR is an integrated circuit chip designed specifically for fax applications.

. It has highly integrated functions for fax machines, printers and other related equipment

The LM833 device is a dual operational amplifier with high-performance specifications for use in quality audio and data-signal applications. Dual amplifiers are utilized widely in audio circuits optimized for all preamp and high level stages in PCM and HiFi systems. The LM833 device is pin-for-pin compatible with industry-standard dual operation amplifiers. With addition of a preamplifier, the gain of the power stage can be greatly reduced to improve performance.

1• Dual-Supply Operation: ±5 V to ±18 V

• Low Noise Voltage: 4.5 nV/√Hz

• Low Input Offset Voltage: 0.15 mV

• Low Total Harmonic Distortion: 0.002%

• High Slew Rate: 7 V/μs

• High-Gain Bandwidth Product: 16 MHz

• High Open-Loop AC Gain: 800 at 20 kHz

• Large Output-Voltage Swing: –14.6 V to 14.1 V

• Excellent Gain and Phase Margins

• Available in 8-Terminal MSOP Package (3.0 mm x 4.9 mm x 0.65 mm)

  2 Applications

  • HiFi Audio System Equipment

  • Preamplification and Filtering

  • Set-Top Box

  • Microphone Preamplifier Circuit

  • General-Purpose Amplifier Applications

The TDA8947J contains four identical audio power amplifiers. The TDA8947J can be used as: four Single-Ended (SE) channels with a fixed gain of 26 dB, two times Bridge-Tied Load (BTL) channels with a fixed gain of 32 dB or two times SE channels (26 dB gain) plus one BTL channel (32 dB gain) operating as a 2.1 system

The TDA8947J comes in a 17-pin Dil-Bent-Sil (DBS) power package. The TDA8947J is pin compatible with the TDA8944AJ and TDA8946AJ.

The TDA8947J contains a unique protection circuit that is solely based on multiple temperature measurements inside the chip. This gives maximum output power for all supply voltages and load conditions with no unnecessary audio holes. Almost any supply voltage and load impedance combination can be made as long as thermal boundary conditions (number of channels used, external heatsink and ambient temperature)

allow it.

• SE: 1 W to 25 W, BTL: 4 W to 50 W operation possibility (2.1 system)

• Soft clipping

• Standby and Mute mode

• No on/off switching plops

• Low standby current

• High supply voltage ripple rejection

• Outputs short-circuit protected to ground, supply and across the load

• Thermally protected

• Pin compatible with TDA8944AJ and TDA8946AJ

• Transition Mode Operation: Optimised for applications like electronic lamp ballasts, AC-DC adapters, and switched-mode power supplies (SMPS).
• Wide Input Voltage Range: Works effectively in applications with input voltages from 85V to 265V, maintaining excellent Total Harmonic Distortion (THD).
• Low Power Consumption: Features a very low startup current (typically 50µA) and quiescent operating current (typically 4mA), which helps minimize power dissipation.
• Adjustable Over-Voltage Protection (OVP): Provides a precise and adjustable OVP feature, which helps protect the circuit from damage due to excessive output voltage.
• Disable Function: Includes a disable function on the ZCD pin, enabling lower current consumption in standby mode.
• Internal Start-up Timer: A built-in timer facilitates the startup sequence.
• Current Sense Filter on Chip: Integrated current sense filter simplifies the circuit design.
• Totem Pole Output Stage: Capable of driving a Power MOS or IGBT with source and sink currents of ±400mA.
• Precise Internal Reference Voltage: Provides a 1% precision internal reference voltage (at T j= 25°C). 

he KA3882 is a current mode PWM (Pulse Width Modulation) controller designed for off-line and DC-to-DC converter applications. It's a fixed-frequency controller featuring internal circuits for undervoltage lockout (UVLO), low start-up current, temperature-compensated reference, a high-gain error amplifier, current sensing comparator, and a high-current totem pole output for driving a MOSFET. It's commonly used in Switch Mode Power Supplies (SMPS). Here's a more detailed breakdown:
• SMPS Controller:The KA3882 is a key component in Switch Mode Power Supplies, responsible for controlling the switching of a MOSFET to regulate voltage and current. 
• Current Mode Control:It utilizes current mode control, which provides improved transient response and cycle-by-cycle current limiting compared to voltage mode control. 
• Key Features:
  • Low Start-up Current: The KA3882 requires a low start-up current (typically 0.2mA) for efficient operation. 
  • High Operating Frequency: It can operate at frequencies up to 500kHz, allowing for smaller and more efficient designs. 
  • UVLO with Hysteresis: It includes undervoltage lockout with hysteresis to prevent erratic behavior at low input voltages. 
  • Short Shutdown Delay Time: The shutdown delay time is short (typically 100ns), enabling quick response to faults. 
  • High Current Totem Pole Output: The output stage is designed to drive a power MOSFET efficiently. 
  • Output Swing Limiting: It limits the output voltage swing to 22V. 

Specification:-

• High side floating supply voltage: -0.3 to 625 V
• High side floating supply offset voltage: VB -25 to VB +0.3 V
• High side floating output voltage: -0.3 to VB +0.3 V
• Low side and logic fixed supply voltage: -0.3 to 25V
• Low side output voltage: -0.3 to VCC+0.3 V
• Logic Supply Voltage: -0.3 to VSS+25 V