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AK4370
低能耗24位DAC配有耳机放大器、混音器及线路输出
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The AK4370 is 24-bit DAC with headphone amplifier. The AK4370 features an analog mixing circuit that allows easy interfacing in the mobile phone and portable communication designs. The integrated headphone amplifier features "pop-noise free" power-on/off, a mute control, and it delivers 40mW of power into 16. The AK4370 is packaged in a 24-pin QFN (4mm4mm) package, ideal for portable applications. |
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- Applications: Mobile Phone, PDA, Portable Media Player
- Multi-bit ΔΣ DAC
- Sampling Rate
- 8kHz ~ 48kHz
- On chip perfect filtering 8 times FIR interpolator
- Passband: 20kHz
- Passband Ripple: ±0.02dB
- Stopband Attenuation: 54dB
- Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
- System Clock
- 256fs/384fs/512fs/768fs/1024fs
- Input Level: AC Couple Input Available
- Audio I/F Format: MSB First, 2’s Complement
- I2S, 24bit MSB justified, 24bit/20bit/16bit LSB justified
- Master/Slave Mode
- Digital Mixing: LR, LL, RR, (L+R)/2
- Bass Boost Function
- Digital ATT
- Analog Mixing Circuit: 4 Inputs (Single-ended or Full-differential)
- Stereo Lineout
- S/N: 90dB@3.3V
- Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step
- Headphone Amplifier
- Output Power: 40mW x 2ch @16Ω, 3.3V
- S/N: 92dB@3.3V
- Pop Noise Free at Power-ON/OFF and Mute
- Output Volume: 0 ~ –63dB & +12/+6/0 dB Gain
 1.5dB step (0 ~ –30dB), 3dB step (–30 ~ –63dB)
- μP Interface: 3-wire/I2C
- Power Supply: 1.6V ~ 3.6V
- Power Supply Current: 3.8mA @1.8V (6.8mW, DAC+HP, No output)
- Ta: -30 ~ 85°C
- Small Package: 24pin QFN (4mm x 4mm, 0.5mm pitch)
- Register Compatible with AK4368
- Evaluation Board: AKD4370
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AK4370 BLOCK DIAGRAM
Data Sheet PDF
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Data Sheets
Rev. MS0595-E-00 2007/03
PDF : 706KB / 49pages
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Evalution Board Manual
Rev. KM086300 2006/12
PDF : 846KB / 30pages |
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