Power Stereo with Headphone Speaker Amplifiers AK4373 low-power 2

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Power Stereo with Headphone Speaker Amplifiers AK4373 low-power 2

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AK4373
Power Stereo with Headphone Speaker Amplifiers
AK4373 low-power 24-bit stereo that features advanced digital audio processing, stereo line output, stereo headphone amplifier, mono speaker amplifier. headphone amplifier configured several ways, including 45mW single-ended pseudo-capless mode, 90mW differential mode. Performance CD-quality, with 96dB headphone line output, 97dB speaker driver. advanced digital audio processing block incorporates DSP-like functions, including low-pass high-pass filters, frequency compensation, stereo enhancement, limiter, five uncommitted bi-quads. There auxiliary analog input with mixers output circuits that used simple noise-cancellation. integrated enables easy clocking, serial control interface either 3-wire I2C. core power supply ranges from 2.2V 3.6V, with digital supply range 1.6V 3.6V, ensuring easy interface 1.8V processors. optional output amplifier supply 4.0V boost output power. Power consumption 26mW headphone mode when using 3.3V supply, 12mW using 2.2V supply.
FEATURES
24-bit stereo Sampling rate: 8kHz 48kHz Stereo headphone amplifier: 45mW into (single-ended, 3.3V, 96dB SNR) 90mW into (differential, 3.3V, 96dB SNR) 45mW into (Cap-less, 3.3V, 86dB SNR) Pop-noise free Stereo lineout (96dB SNR) Mono speaker driver (dynamic Piezo) 400mW into (97dB SNR) Advanced digital audio processing: Low-pass, high-pass filters stereo enhancement Frequency compensation (speaker Five uncommitted bi-quads limiter function Analog input mixing noise cancellation Integrated 3-wire serial control 2.2V 3.6V core, 1.6V 3.6V digital supplies power: 26mW (headphone mode, 3.3V) 32-pin package (25mm 0.5mm pitch)
MCKO MCKI
APPLICATIONS
Portable navigation devices Portable media players Portable game players Smart phones PDA's Bluetooth headphones Music player docking stations
BENEFITS
Differential headphone mode supports enables high output power with supply voltage Pseudo-capless headphone mode eliminates coupling caps closed system applications Digital audio processing compensates errors caused speaker's poor frequency response limiter normalizes audio levels Analog input enables free noise-cancellation
About Audio2goAudio2goidentifies products designed mobile applications, emphasizing power, small size, high integration. Popular features include speaker drivers, headphone amps, PLL's, preamps.
SDTI
Digital Audio Interface
Digital Processing Block High -pass filter -pass filter stereo Enhancem Frequency pensation Five -quads iter
Stereo
Control
Contact Information
http://www.akm.com
Semiconductor
1731 Technology Drive Suite Jose, 95110 Tel: (408) 436-8580 Tel: (888) AKM-SEMI
AK4373
Application Diagrams
Digital Processing Block High -pass filter -pass filter stereo Enhancem Frequency pensation Five -quads iter Control
Stereo
le-E
Digital Processing Block High -pass filter -pass filter stereo Enhancem Frequency pensation Five -quads iter Control
Stereo
iffe
Digital Processing Block High -pass filter -pass filter stereo Enhancem Frequency pensation Five -quads iter Control
Stereo
Contact Information
http://www.akm.com
Semiconductor
1731 Technology Drive Suite Jose, 95110 Tel: (408) 436-8580 Tel: (888) AKM-SEMI

Power Stereo with Headphone Speaker Amplifiers AK4373 low-power 2

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