參數(shù)資料
型號: AK4565VF
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: LOW POWER 20BIT CODEC WITH BUILT IN ALC
中文描述: 低功耗20位編解碼器中的ALC的建造
文件頁數(shù): 1/33頁
文件大?。?/td> 249K
代理商: AK4565VF
ASAHI KASEI
[AK4565]
MS0132-E-01
2003/05
- 1 -
GENERAL DESCRIPTION
The AK4565 is a low power voltage, 20bit CODEC. The recording feature includes four stereo inputs
selector which switches among microphone and line inputs etc. And the input PGA has an ALC function,
making it suitable for microphone application. The AK4565 has a dedicated power supply pin for digital
I/F, which can support I/O level down to 1.5V. The AK4565 can be powered-down partly and is suitable
for portable application.
FEATURES
1. Resolution: 20bits
2. Recording Functions
Four Stereo Inputs Selector
Input PGA (Programmable Gain Amplifier) with ALC (Automatic Level Control)
FADEIN / FADEOUT
Digital HPF for DC-offset cancellation (fc=3.7Hz@fs=48kHz)
3. Playback Function
Digital De-emphasis Filter (tc = 50/15
m
s, fs=32k, 44.1k and 48kHz)
4. Power Management
5. CODEC
Single-ended Inputs/Outputs
Input / Output Level: 1.5Vpp@VREF=2.5V (= 0.6 x VREF)
S/(N+D): 83dB(ADC), 86dB(DAC) @VREF=2.5V
DR, S/N: 87dB(ADC), 91dB(DAC) @VREF=2.5V
6. Master Clock: 256fs/384fs
7. Sampling Rate: 8kHz
50kHz
8. Audio Data Interface Format: MSB-First, 2’s compliment
ADC: 20bit MSB justified, I
2
S
DAC: 20bit MSB justified, 16/20bit LSB justified, I
2
S
9.
m
P Interface: 4-wire
10. Power Supply
CODEC, IPGA: 2.3
3.6V (typ.2.5V)
Digital I/F: 1.5
3.6V(typ.2.5V)
11. Power Supply Current
ALL Power ON: 12.5mA
IPGA + ADC: 8mA
DAC: 5.5mA
12. Ta = - 40
~
85
o
C
13. Package: 28pin VSOP
14. AK4563A pin-compatible
Low Power 20bit CODEC with built-in ALC
AK4565
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