AK4343 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AK4343 Datasheet PDF : 98 Pages
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ASAHI KASEI
[AK4343]
AK4343
Stereo DAC with HP/RCV/SPK-AMP
GENERAL DESCRIPTION
The AK4343 is a stereo DAC with a built-in Headphone-Amplifier, Receiver-Amplifier and 1.2W output
Speaker-Amplifier. The AK4343 features analog mixing circuits and PLL that allows easy interfacing in
mobile phone and portable A/V player designs. The AK4343 is available in a 32pin QFN, utilizing less
board space than competitive offerings.
FEATURES
1. Playback Function
• Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz)
• Bass Boost
• Soft Mute
• Digital Volume (+12dB ∼ −115.0dB, 0.5dB Step, Mute)
• Digital ALC (Automatic Level Control)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
• Stereo Separation Emphasis
• Programmable EQ
• Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
• Mono Receiver-Amp
- BTL Output
- Output Power: 30mW@32Ω (AVDD=3.3V)
• Stereo Headphone-Amp
- S/(N+D): 70dB@7.5mW, S/N: 90dB
- Output Power: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
• Mono Speaker-Amp
- S/(N+D): 50dB@240mW, S/N: 90dB
- BTL Output
- Availbable for both Dynamic and Piezo Speaker
- Output Power: 1.2W@8Ω (HVDD=5V), 400mW@8Ω (HVDD=3.3V)
• Analog Mixing:
3.0Vrms@50Ω (HVDD=5V)
- 3 Stereo Input
- Gain Amplifier (+32dB/+26dB/+20dB or 0dB)
2. Power Management
3. Master Clock:
(1) PLL Mode
• Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (LRCK pin)
32fs or 64fs (BICK pin)
(2) External Clock Mode
• Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
4. Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
5. Sampling Rate:
• PLL Slave Mode (LRCK pin): 7.35kHz ∼ 48kHz
• PLL Slave Mode (BICK pin): 7.35kHz ∼ 48kHz
• PLL Slave Mode (MCKI pin):
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
• PLL Master Mode:
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
MS0478-E-01
-1-
2006/10
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