AK4940 Datasheet | Asahi Kasei Microdevices

Description The AK4940 is an audio CODEC with gain amplifier for microphone and analog direct path. It is ideal for data munication modules (DCM). The AK4940 is available in small 24-pin QFN (4 mm  4 mm, 0.5 mm pitch) package. 2. Features - ADC: 24-bit Monaural ADC (with Microphone Gain Amplifier) - Sampling Frequency: fs = 8k Hz to 48k Hz - Analog Gain Amplifier for Microphones (-6 to 27d B, 3d B step) - Analog Input Selector - Differential Input/ Single-ended Input/ Pseudo Differential Input - ADC Characteristics: S/(N+D):80d B, S/N:90d B (fs=48k Hz, Differential Input, MIC Gain=0d B) - Digital Volume (+24 to -103d B, 0.5d B Step, Mute) - Digital HPF for DC Offset Cancelling - Two Kinds of Digital Filters: Sharp Roll-Off Filter, Voice Filter - DAC: 24-bit Monaural DAC (with Line Amplifier) - Sampling Frequency: fs=8k Hz to 48k Hz - Differential Output/ Pseudo Differential Output x2, Single-ended Output x1 - DAC...