ACS422x68中文资料CODEC + Headphone Amp + Stereo Speaker Amp数据手册Tempo规格书

描述 Description

The ACS422x68 is a low-power, high-fidelity integrated CODEC targeted at portable applications such as tablet computers, personal navigation devices, portable projectors and speaker docks. In addition to a high-fidelity low-power CODEC, the device integrates a stereo DDX™ Class-D speaker amplifier and a true capless headphone amplifier. Beyond high-fidelity for portable systems, the device offers an enriched “audio presence” through built-in audio processing capability.

特性 Features

◆ High fidelity 24-bit stereo CODEC
• DAC 124dB SNR, 102dB DNR, THD+N better than -82dB
• ADC 90dB DNR, THD+N better than -80dB
◆ Built in audio controls and processing
• 3D Stereo Enhancement
• 12-band Stereo Parametric Equalizers
• Multiband Compressor/Limiter/Expander
• Psychoacoustic Bass Enhancement for limited bass response drivers
• High-frequency Psychoacoustic Content Restoration for Compressed Audio Content
◆ Filterless Stereo DDX Class-D Speaker Driver
• 3W/channel (4Ω), 10% THD+N typical
• 1W/channel (8Ω) or 2W/channel (4Ω), 0.05% THD+N typical
• Tri-state DDX Class-D achieves low EMI and high-efficiency
• >80% efficiency at 1W
• Spread spectrum support for reduced EMI output power mode
• Anti-Pop circuitry
◆ On-chip true cap-less headphone driver
• 35mW output power (16Ω), 29mW output power (32Ω)
• Charge-pump allows true ground centered outputs
• 124dB SNR / 102dB DNR
◆ I2S / LJ / RJ / TDM data interface
◆ Microphone/line-in interface
• Analog microphone or line-in inputs
• Digital microphone (ACS422D68)
• Automatic level control
◆ On-chip low-jitter PLL for audio timing
◆ Low power with built in power management
• 1.7 V CODEC supports 1Vrms
• Very low standby and no-signal power consumption
• 1.8V digital / 1.7V analog supply for low power
◆ 2-wire (I2C compatible) control interface
◆ Package Options
• 48-pin 7x7mm QFN (Quad Flat No-leads) Package
• 68-pin dual-row 6x6mm TLA (Thermal Leadless Array) Package
• 63-pin dual-row 5x5mm HLA™ (Hi-density Leadless Array) Package