Description

The AK4556VT is an interface-CODEC electronic component model that is low voltage and has a 24-bit 192kHz CODEC feature. The dynamic performance to power supply voltage ratio is superlative for high performance battery-powered digital audio subsystems, attaining 103dB and 106dB SNR for ADC and DAC, respectively. The component is well-suited for space-sensitive applications with a small 20-pin TSSOP packaging. It is designed to be less jitter sensitive by employing an integrated switched-capacitor filter. The analog inputs and outputs are single-ended to minimize pin count and the need for external filtering requirements.

Specifications and features

• Single-ended ADC
• Single-ended DAC
• Audio I/F format: MSB First, 2’s Complement
• Input/Output Voltage: ADC = 2.1Vpp @ VA=3.0V, DAC = 2.1Vpp @ VA=3.0V
• 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)
• 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

Application Scenarios

The AK4556VT CODEC model is widely used in various digital audio subsystems, including car audio systems, home theatres, and portable digital players. It aids in the production of high-quality audio with minimum power consumption.

Comparison

• Low voltage
• High dynamic performance to power supply voltage ratio
• Less sensitivity to jitter
• Very small package

• The analog inputs and outputs are single-ended, which may not be suitable for all applications that require differential inputs and outputs