[AK4611]
AK4611
4/8-Channel Audio CODEC
GENERAL DESCRIPTION
The AK4611 is a single chip audio CODEC that includes four ADC channels and eight DAC channels.
The converters are designed with Enhanced Dual Bit architecture for the ADC’s, and Advanced Multi-Bit
architecture for the DAC, enabling very low noise performance. Fabricated on a low power process, the
AK4611 operates off of a +3.3V analog supply and a +1.8V digital supply. The AK4611 supports both
single-ended and differential inputs and outputs. A wide range of applications can be realized, including
home theater, pro audio and car audio. The AK4611 is available in an 80-pin LQFP package.
FEATURES
1. 4channel 24bit ADC
- 128x Oversampling
- Linear Phase Digital Anti-Alias Filter
- Analog Anti-Alias Filter for Single-Ended Input and Differential Input
- ADC S/(N+D)
92dB: Single-Ended Input
97dB: Differential Input
- ADC DR, S/N
103dB: Single-Ended Input
104dB: Differential Input
- Digital HPF for offset cancellation
- I/F format: MSB justified, I
2
S or TDM
- Overflow flag
2. 8channel 24bit DAC
- 128x Oversampling
- Linear Phase 24bit 8 times Digital Filter
- Analog Smoothing Filter for Single-Ended Output
- DAC S/(N+D)
94dB: Single-Ended Output
100dB: Differential Output
- DAC DR, S/N
105dB: Single-Ended Output
108dB: Differential Output
- Individual channel digital volume with 256 levels and 0.5dB steps
- Soft mute
- De-emphasis for 32kHz, 44.1kHz and 48kHz
- Zero Detect Function
- I/F format: MSB justified, LSB justified (16bit, 20bit, 24bit), I
2
S or TDM
3. Sampling Frequency
- Normal Speed Mode: 32kHz to 48kHz
- Double Speed Mode: 64kHz to 96kHz
- Quad Speed Mode: 128kHz to 192kHz
4. Master / Slave mode
MS1050-E-02
-1-
2010/06
AKM [ ASAHI KASEI MICROSYSTEMS ]
