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參數資料
| 型號： | AK4561 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16bit CODEC with built-in ALC and MIC/HP-Amp |
| 中文描述： | 16位編解碼器在ALC和內置麥克風/惠普放大器 |
| 文件頁數： | 1/48頁 |
| 文件大小： | 332K |
| 代理商： | AK4561 |
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ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Rev. 0.9
2000/09
- 1 -
GENERAL DESCRIPTION
AK4561 is a 16bit stereo CODEC with a built-in Microphone-Amp, Headphone-Amp. Input circuits include
Microphone/LINE inputs selector, power supply for microphone, Pre-Amp, HPF-Amp, EQ-Amp and ALC
(Automatic Level Control) circuit, and output circuits include LINEOUT buffer, Analog Volume and
Headphone-Amp. As Multi-Power-Supply-System can be set a suitable power supply voltage in each block,
the AK4561 is compatible with high performance and low power dissipation. The package is a 64pin TQFP,
therefore, a new system can be a smaller board area than a current system is composed of 2 or 3 chips.
FEATURE
1. Resolution: 16bits
2. Recording Function
·
3-Input Selector (Internal MIC, External MIC and LINE)
·
MIC-Amp
- Pre-Amp, EQ-Amp, HPF-Amp for wind-noise
·
Digital ALC (Automatic Level Control) circuit
·
FADEIN/FADEOUT
·
Digital Delay circuit
·
Digital HPF for offset cancellation (fc=3.7Hz@fs=48kHz)
3. Playback Function
·
Digital De-emphasis Filter (tc=50/15
m
s, fs = 32kHz, 44.1kHz and 48kHz)
·
LINEOUT Buffer: +2dBV
·
Analog Volume
- 0dB
~
-50dB, Mute
·
Headphone-Amp
- Output Level: -5.5dBV@VA=2.8V, R
L
=55
W
·
Monaural Output Buffer
·
BEEP Signal Input
4. Analog Through Mode
5. Power Management
6. ADC Characteristics (LINEIN
ALC
ADC)
·
S/(N+D): 78dB, DR=S/N: 86dB
7. DAC Characteristics (DAC
LINEOUT)
·
S/(N+D): 76dB, DR=S/N: 88dB
8. Master Clock: 256fs/384fs
9. Sampling Rate: 8kHz
~
50kHz
10. Audio Data Interface Format: MSB-First, 2’s compliment (AK4550 Compatible)
·
ADC: 16bit MSB justified, DAC: 16bit LSB justified
11. Ta = -20
~
85
°
C
12. Power Supply
·
CODEC, Analog Volume, Headphone-Amp: 2.6
~
3.3V (typ. 2.8V)
·
LINEOUT: 3.8
~
5.5V (typ. 4.5V)
·
MIC-Amp: 2.6
~
5.0V (typ. 2.8V)
·
Digital I/F: 1.8
~
3.3V (typ. 2.8V)
13. Power Supply Current
·
All Circuit Power On: 37mA
14. Package: 64pin TQFP, 0.4mm Pitch
16bit CODEC with built-in ALC and MIC/HP-Amp
AK4561
- Preliminary -
相關PDF資料 |
PDF描述 |
|---|---|
| AK4561VQ | 16bit CODEC with built-in ALC and MIC/HP-Amp |
| AK4562 | LOW POWER 20BIT CODEC WITH PGA |
| AK4562VN | LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AK4561VQ | 制造商:AKM 制造商全稱:AKM 功能描述:16bit CODEC with built-in ALC and MIC/HP-Amp |
| AK4562 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.A FOR AK4562 |
| AK4562VN | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
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