參數(shù)資料
型號(hào): AK4556VT
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 3V 192kHz 24Bit ツヒ CODEC
中文描述: 3V的192kHz 24位ツヒ編解碼器
文件頁(yè)數(shù): 1/22頁(yè)
文件大?。?/td> 189K
代理商: AK4556VT
ASAHI KASEI
[AK4556]
MS0559-E-00
2006/11
- 1 -
GENERAL DESCRIPTION
The AK4556 is a low voltage 24bit 192kHz CODEC for high performance battery powered digital audio
subsystems. The dynamic performance to power supply voltage ratio is very high, attaining 103dB and
106dB SNR for ADC and DAC, respectively. Sampling rates up to 216kHz are supported. The AK4556
reduces jitter sensitivity by using an integrated switched-capacitor filter. The analog inputs and outputs
are single-ended to minimize pin count and external filtering requirements. Packaged in a very small
20-pin TSSOP, the AK4556 is ideal for space-sensitive applications.
FEATURES
Single-ended ADC
- Dynamic Range, S/N: 103dB@VA=3.0V
- S/(N+D): 91dB@VA=3.0V
- HPF for DC-offset cancel (fc = 1Hz @ fs=48kHz)
- HPF can be disabled
Single-ended DAC
- Dynamic Range, S/N: 106dB@VA=3.0V
- S/(N+D): 90dB@VA=3.0V
- Digital de-emphasis for 32kHz, 44.1kHz and 48kHz sampling
Audio I/F format: MSB First, 2’s Complement
- ADC: 24bit MSB justified or I
2
S compatible
- DAC: 24bit MSB justified, 24bit LSB justified or I
2
S compatible
Input/Output Voltage: ADC = 2.1Vpp @ VA=3.0V
DAC = 2.1Vpp @ VA=3.0V
Master/Slave mode
Sampling Rate:
- Normal Speed: 8kHz to 54kHz (256fs or 512fs)
8kHz to 48kHz (384fs or 768fs)
- Double Speed: 54kHz to 108kHz (256fs)
48kHz to 96kHz (384fs)
- Quad Speed: 108kHz to 216kHz (128fs)
96kHz to 192kHz (192fs)
Master Clock:
- Slave mode: 256fs, 384fs, 512fs or 768fs (Normal Speed)
256fs or 384fs (Double Speed)
128fs or 192fs (Quad Speed)
- Master mode: 256fs or 512fs (Normal Speed)
256fs (Double Speed)
128fs (Quad Speed)
Power Supply: 2.4 to 3.6V (Normal Speed, Double Speed)
2.7 to 3.6V (Quad Speed)
Power Supply Current: 27.5mA
Ta = -40 to 85°C
Very Small Package: 20pin TSSOP
Upper compatible with AK4552
3V 192kHz 24Bit
Σ
CODEC
AK4556
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