DS773F1 is a ultra low power, stereo CODEC with class H headphone amp from Cirrus Logic.
The CS42L55 integrates a 24‑bit stereo ADC and DAC, a Class H headphone amplifier, and a digital signal‑processing engine in a compact 36‑pin QFN package. It offers ultra‑low power consumption, high dynamic range, and low THD+N, making it suitable for portable audio devices.
Key features include programmable gain amplifiers, automatic level control, noise gate, tone control, and a flexible charge‑pump power‑management scheme. The device supports a wide range of sample rates and provides both analog and digital routing options for versatile system designs.
| Stereo Playback Power Consumption | 5 mW |
|---|---|
| Stereo Record Power Consumption | 3.5 mW |
| Playback Dynamic Range | 99 dB (A‑weighted) |
| Record Dynamic Range | 95 dB (A‑weighted) |
| Playback THD+N | -86 dB |
| Record THD+N | -87 dB |
| Supported Sample Rates | 8 kHz – 48 kHz (8.000, 11.029, 12.000, 16.000, 22.059, 24.000, 32.000, 44.118, 48.000 kHz) |
| Package | 36‑pin QFN (5 × 5 mm) |
| Operating Temperature Range | -40 °C to +85 °C |
The CS42L55 consumes 5 mW during stereo playback.
It supports 8 kHz, 11.029 kHz, 12 kHz, 16 kHz, 22.059 kHz, 24 kHz, 32 kHz, 44.118 kHz and 48 kHz.
The device is supplied in a 36‑pin QFN package measuring 5 × 5 mm.