CS42L42-CWZR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | RoHS Compliant |
| Package / Case | 49-UFBGA, WLCSP |
| Mfr | Cirrus Logic Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Type | Audio |
| Supplier Device Package | 49-WLCSP (2.64x2.64) |
| Data Interface | I²S |
| Resolution (Bits) | 24 b |
| Voltage - Supply, Analog | 1.2V, 1.8V |
| Voltage - Supply, Digital | 1.2V, 1.8V |
| Sigma Delta | No |
| Number of ADCs / DACs | 2 / 2 |
| Dynamic Range, ADCs / DACs (db) Typ | - |
| S/N Ratio, ADCs / DACs (db) Typ | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | CS42L42 |
| REACH Status | REACH Unaffected |
| Other Names | -CS42L42-CWZR |
| Standard Package | 6,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
CS42L42-CWZR Audio Codec Chip Overview
The CS42L42-CWZR is a low-power, high-performance audio codec designed by Cirrus Logic for portable and embedded audio applications. It integrates a 24-bit stereo DAC (114 dB SNR) and a 24-bit mono ADC (114 dB SNR), supporting sampling rates from 8 kHz to 192 kHz for high-fidelity audio playback and recording. The device features a Class-H headphone amplifier with 2x35 mW output power (30Ω load) and four-stage power regulation, enabling efficient battery-powered operation. It supports MIPI SoundWire®, I²C, I²S, and TDM interfaces for flexible connectivity, along with S/PDIF transmission for digital audio output. The codec includes programmable sample rate converters (SRCs) for asynchronous audio processing and a 32-bit parametric equalizer for audio enhancement. Additional features include OMTP/AHJ headset detection, microphone short-circuit detection with ADC auto-mute, and sidetone mixing. Powered by 1.2V/1.8V analog and digital supplies, it operates efficiently across -40°C to +85°C industrial temperature ranges.
CS42L42-CWZR audio codec Application
● Consumer Electronics: Smartphones, tablets, and portable media players
● Telecommunications: VoIP devices, conference phones, and intercom systems
● Wearables & IoT: Smartwatches, hearing aids, and fitness trackers
● Automotive Infotainment: In-car entertainment systems
Alternative audio codec Models
● TLV320AIC3104 (TI): A low-power codec with stereo ADC/DAC and Class-D speaker driver, but lower SNR (91 dB ADC) and no SigmaDSP processing.
● WM8978G (Cirrus Logic): A stereo codec with integrated headphone amplifier (1.4 W output) and similar SNR (94 dB DAC), but lacks programmable EQ and SoundWire support.
● MAX98357A (Maxim Integrated): A Class-D amplifier (3.2 W) without integrated ADC/DAC, requiring external codecs for full audio processing.
● CS43L22 (Cirrus Logic): A budget-friendly stereo codec with 88 dB SNR and 1.8 W amplifier, targeting cost-sensitive consumer electronics.
