Asahi Kasei Microdevices AK4640
The AK4640 targeted at PDA and other low-power, small size applications. It features a 16bit stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. The AK4640 is available in a smaller 57pin BGA in addition to a 52pin QFN that has compatibility with the AK4534/8, utilizing less board space than competitive offerings.| Part No. | AK4640 |
|---|---|
| Datasheet | AK4640 Download |
| Manufacturer |  Asahi Kasei Microdevices |
| Description | 16-BIT CODEC |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit.FEATURES
1. Resolution : 16bits 2. Recording Function● Mono Input
● 2 to 1 Selector (Internal and External MIC)
● 1st MIC Amplifier : +20dB or 0dB
● 2nd Amplifier with ALC : +27.5dB ∼ −8dB, 0.5dB Step
● ADC Performance : S/(N+D) : 79dB, DR, S/N : 83dB 3. Playback Function
● Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz)
● Digital Volume (0dB ∼ −127dB, 0.5dB Step, Mute)
● Headphone-Amp - S/(N+D) : 70dB, S/N : 90dB - Ou
