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General Description
The LM4780 is a stereo AUDIO amplifier capable of typically delivering 60W per channel of continuous average output power into an 8Ω load with less than 0.5% THD+N from 20Hz - 20kHz.

Features
■ SPiKe Protection
■ Low external component count
■ Quiet fade-in/out mute mode
■ Wide supply range: 20V - 84V
■ Signal-to-Noise Ratio ≥ 97dB (ref. to PO = 1W)

Applications
■ AUDIO amplifier for component stereo
■ AUDIO amplifier for compact stereo
■ AUDIO amplifier for self-powered speakers
■ AUDIO amplifier for high-end and HD TVs

Description
The TLV320AIC3100 is a low-power, highly integrated, high-performance codec which provides a
stereo AUDIO DAC, a mono AUDIO ADC, and a mono class-D 4-Ω speaker driver.

The TLV320AIC3100 features a high-performance AUDIO codec with 24-bit stereo playback and monaural record functionality. The device integrates several analog features, such as a microphone
interface, headphone drivers, and speaker drivers.

8-Channel Video/AUDIO Decoder with Integrated AUDIO DAC

The CX25828 eight-channel video decoder was designed for surveillance applications. The CX25828 contains
eight high-quality NTSC/PAL video decoders, nine AUDIO ADCs, and one AUDIO DAC.

CX25828 Features
Eight High-Quality NTSC/PAL video decoders:
– Anti-aliasing filters
– 10-bit ADCs
– 5-line comb filtering
– Independent scaling
– Brightness/Contrast/Hue/Saturation/Sharpness controls
– Excellent low level-signal locking
AUDIO Codec
– 9 ADCs (8 ADCs for each camera input and one pair AUDIO codec for two-way communication function)
– 1 DAC
– Support for 8/16/32/44.1/48k Hz sample rates
– 4 I2S interfaces for record, mix, cascade, and playback
– Support interleaved I2S/DSP style output
– A-law/u-law encoding
– 8/16/24 bit PCM AUDIO data
Flexible digital video output formats
– ITU-R BT.656
– Byte-interleaved of multiple sources at 27/54/108 MHz
Programmable Motion Detection
I2C interface
9 GPIOs
The CX25828 is packaged in a 128-pin eTQFP package.

General Description
The LM4970 is a LED driver with an AUDIO synchronization mode that virtually eliminates the need for real time software processing for LED lighting effects. The LM4970 includes three individual PWM color LED drivers that provide up to 42mA of current drive for each PWM LED output. The LM4970 features an AUDIO synchronization mode where the AUDIO input signal that is mixed in from three AUDIO inputs is filtered into three frequency bands, with each frequency band assigned to a specific PWM LED driver.

Key Specifications
■ LED Drive Current per channel
  VDD = 5V 42mA (2X setting)
■ Shutdown Current, VDD = 5V 1.5µA (typ)

Features
■ AUDIO synchronized color LED driver
■ User defined LED pattern, color, and intensity capability
■ Programmable:
   LED Drive current
   PWM frequency
   High pass filter frequency select
■ AUDIO input signal gain
■ Eliminates external LED current limiting resistors
■ I2C compatible interface
■ Ultra low shutdown current

Applications
■ Cell Phones
■ Portable MP3, CD, DVD, AAC players
■ PDA’s

Description
AK2347B includes AUDIO filter, limiter, splatter filter, compandor, scrambler, which is highly integrated two-way radio baseband functions for FRS and LMR.
AUDIO high-pass filter shows a high attenuation in magnitude response characteristics under 250Hz that supports to eliminate a subAUDIO tone clearly.

Features
• AUDIO processing
  • TX and RX amplifier
  • Pre/De-emphasis circuit
  • Compressor and Expander with no external components
  • Scrambler and De-scrambler in frequency inversion type (3.388kHz or 3.290kHz)
  • Limiter with level adjuster
  • Splatter filter for wide and narrow band
  • Digital controlled amplifier for microphone, modulator and demodulator sensitivity
• Sub-AUDIO filter with level adjuster for CTCSS and DCS
• Low power supply operation: 2.7 to 3,3V
• Wide range operating for temperature: -40 to 85 °C
• Oscillator circuit for 3.6864MHz and 3.579545MHz crystal
• Serial control interface operation
• Compact plastic packaging, 24-pin SSOP

Description
AK2347A includes AUDIO filter, limiter, splatter filter, compandor, scrambler, which is highly integrated two-way radio baseband functions for FRS and LMR.
AUDIO high-pass filter shows a high attenuation in magnitude response characteristics under 250Hz that supports to eliminate a subAUDIO tone clearly.

Features
• AUDIO processing
  • TX and RX amplifier
  • Pre/De-emphasis circuit
  • Compressor and Expander with no external components
  • Scrambler and De-scrambler in frequency inversion type (3.388kHz or 3.290kHz)
  • Limiter with level adjuster
  • Splatter filter for wide and narrow band
  • Digital controlled amplifier for microphone, modulator and demodulator sensitivity
• Sub-AUDIO filter with level adjuster for CTCSS and DCS
• Low power supply operation: 2.7 to 3,3V
• Wide range operating for temperature: -40 to 85 °C
• Oscillator circuit for 3.6864MHz and 3.579545MHz crystal
• Serial control interface operation
• Compact plastic packaging, 24-pin QFNJ (4.0x4.0x0.75mm 0.5mm pitch)

DESCRIPTION
The PT2314E is an AUDIO processor designed for versatile application, includes 4 stereo input selector with adjustable gain, master volume control with low frequency loudness compensation, speaker output attenuator and tone control. It is a good solution for the home AUDIO signal processing.
Due to the high reliability requirement from the AUDIO business, the PT2314E improves both AUDIO performances and input surge current capability, these causes the PT2314E is the best solution for the cost-effective AUDIO systems.

FEATURES
• 4 stereo inputs with gain selection, range from 0dB
   to +11.25dB in 3.75dB/step
• Master volume from 0 dB to -78.75dB in
   1.25dB/step
• Speaker attenuator for balance, range from 0dB to
   -38.75dB in 1.25dB/step
• Each channel output can be muted individually.
• Low frequency loudness compensation
• Bass and Treble control, range from -14dB to
   +14dB in 2dB/step
• Wide operation range (VDD=4V to 10V)
• Low harmonic distortion, low noise
• Improved and replace PT2314 and PT2314A

APPLICATIONS
• Flat Panel TV
• Home AUDIO System
• Powered Speaker System

Summary
AK2347, in addition voice filter, limiter, to splatter filter, emphasis, compander, scrambler circuit,
Has a built-in programmable LPF for CTCSS, is an IC with a single chip the baseband section of the radio. HPF of the AUDIO filter, reliable sub-AUDIO signals, such as CTCSS shows a high attenuation rate below 250Hz To achieve the removal. Also limiter circuit, it is possible to adjust the limit level by connecting a resistance to external.

Features
□ in addition to voice filter, internal limiter, an AUDIO signal processing circuit such as splatter filter
□ emphasis, compander, scrambler circuit built-in (3.388kHz, 3.290kHz)
□ CTCSS programmable LPF built-in
□ oscillation circuit built by the quartz oscillator (3.6864MHz, 3.579545MHz)
□ operating voltage range: 2.7V ~ 3.3V
□ operating temperature range: -40 ℃ ~ + 85 ℃
□ low consumption by CMOS process current
□ adopt a plastic small package: 24-pin VSOP

DESCRIPTION
The LM4970 is a LED driver with an AUDIO synchronization mode that virtually eliminates the need for real time software processing for LED lighting effects. The LM4970 includes three individual PWM color LED drivers that provide up to 42mA of current drive for each PWM LED output. The LM4970 features an AUDIO synchronization mode where the AUDIO input signal that is mixed in from three AUDIO inputs is filtered into three frequency bands, with each frequency band assigned to a specific PWM LED driver.
The PWM LED drivers can also be directly programmed through an I2C compatible interface for applications where user defined LED pattern, color, and intensity programmability is a priority.
The LM4970 also features an AUDIO input gain control which allows the user to increase the gain if the AUDIO input signal does not create a bright enough effect on the LEDs. The LM4970 is a feature rich LED driver that is available in a space saving 14 pin non pullback WSON package.

FEATURES
• AUDIO Synchronized Color LED Driver
• User Defined LED Pattern, Color, and Intensity Capability
• Programmable:
   – LED Drive Current
   – PWM Frequency
   – High Pass Filter Frequency Select
   – AUDIO Input Signal Gain
• Eliminates External LED Current Limiting Resistors
• I2C Compatible Interface
• Ultra Low Shutdown Current

APPLICATIONS
• Cell Phones
• Portable MP3, CD, DVD, AAC players
• PDAs

KEY SPECIFICATIONS
• LED Drive Current per Channel (VDD = 5V): 42mA (2X Setting)
• Shutdown Current, VDD = 5V: 1.5μA (Typ)

C-Cube Microsystems presents the CL8830 MPEG-2 A/V Processor, its 3rd generation single-chip MPEG-2 A/V decoder. The CL8830 delivers high-quality play back of all popular video disc formats, including Chaoji VCD, CVD, VCD2.0, and VCD1.1. In addition, the CL8830 significantly enriches the consumers' home theater and karaoke experience with its breakthrough RealSonic AUDIO technology.

The CL8830 delivers an unparalleled set of features, including:"

• MPEG-2 A/V decoding at 2/3 and 1/2 D1 resolutions
• Variable bitrate (VBR) technology to ensure the highest quality video output
• An embedded 50 MIPS dedicated AUDIO DSP provides a rich AUDIO feature set
• C-Cube's RealSonic AUDIO technology allows royaltyfree DVD-quality home-theater AUDIO and custom AUDIO effects
• Basic Karaoke functions (mic echo, key control, stereo vocal cancel and voice detect)
• Professional Karaoke functions such as vocal harmony, vocal chorus, vocal scoring, vocal flange, vocal reverb, microphone treble and simulated stereo
• Home Theater Effects, including: WideSound™, RealSonic 3D AUDIO, RealSonic multichannel outputs, RealSonic concert hall, RealSonic dynamic range compression and graphic equalizer
• Two stereo AUDIO input channels allow full stereo multiple language support and full stereo Karaoke
• High-resolution lyrics for clear, crisp movie subtitles
• Lyrics scrolling and color change for Karaoke sing-alone
• Multiple high-resolution Lyrics channels to support multiple language subtitles
• Zoom and fade-in/fade-out functions for still and motion pictures
• Integrated SDRAM interface for compact, low-cost memory design
• ClearView™, DiscView™, and FlexView™ technologies
• Highest playback quality for all video disc formats including Chaoji VCD, CVD, VCD1.x, VCD2.0, CD-DA and CD-I