Low Power Codec with Class D Speaker Driver
The CS42L52 is a 24-bit, low power stereo audio codec providing up to 1 W per channel of highly efficient Class D amplification to external speakers, or enough power to drive 44 mW per channel into stereo headphones and consumes only 13 mW of power at 1.8 V in playback mode. The CS42L52 offers the flexibility to run its core from a single power supply and directly connect the Class D amplifier to the battery supply for a more efficient operation. With its ground-centered outputs, the CS42L52 helps to reduce clicks and pops during start up, improves low-end frequency response and eliminates costly, space-consuming DC blocking capacitors.
CIRRUS ROCKS® CIRRUS® ENGINEERED TO ROCK® INNOVATION THAT ROCKS®
Technologies
Features
- High performance stereo ADC & DAC
- 99 dB (ADC),98 dB (DAC) dynamic range (A-wtd)
- -88 dB THD+N
- Flexible stereo analog input architecture
- 4:1 analog input MUXr
- Analog input mixing
- Analog pass-thru with volume control
- Analog Programmable Gain Amplifier (PGA)
- Programmable Automatic Level Control (ALC)
- Noise gate for noise suppression
- Programmable threshold & attack/release rates
- Dual MIC inputs
- Differential or single-ended
- +16 dB to +32 dB w/1 dB step MIC pre-amplifiers
- Programmable, low noise MIC bias levels
- Digital signal processing engine
- Bass & treble tone control, de-emphasis
- Main volume and independent PCM SDIN + ADC SDOUT Mix Vol. Ctl.
- Soft-ramp & Zero-cross transitions
- Programmable peak-detect and limiter
- Beep generator w/full tone control
- No external filter required
- High stereo output power at 10% THD+N
- 2 x 1.00 W into 8 Ω @ 5.0 V
- 2 x 550 mW into 8 Ω @ 3.7 V
- 2 x 230 mW into 8 Ω @ 2.5 V
- High mono output power at 10% THD+N
- 1 x 1.90 W into 4 Ω @ 5.0 V
- 1 x 1.00 W into 4 Ω @ 3.7 V
- 1 x 350 mW into 4 Ω @ 2.5 V
- Direct battery powered operation
- Battery level monitoring & compensation
- 82% at 800 mW
- Phase-aligned PWM output reduces idle channel current
- Spread spectrum modulation
- Low quiescent current
- Ground centered outputs
- No DC-blocking capacitor required
- Integrated negative voltage regulator
- High power output at -75 dB THD+N
- 2 x 23 mW into 16 Ω @ 1.8 V
- 2 x 44 mW into 16 Ω @ 2.5 V
- 12, 24, and 27 MHz main clock support in addition to typical audio clock rates
- High performance 24-bit converters
- Multi-bit Delta Sigma architecture
- Very low 64Fs oversampling clock reduces power consumption
- Low power operation
- Stereo analog passthrough: 10 mW @ 1.8 V
- Stereo playback: 14 mW @ 1.8 V
- Stereo record and playback: 23 mW @ 1.8 V
- Variable power supplies
- 1.8 V to 2.5 V digital & analog
- 2.5 V to 5 V Class D amplifier
- 1.8 V to 2.5 V headphone amplifier
- 1.8 V to 3.3 V interface logic
- Power down management
- ADC, DAC, codec, MIC pre-amplifier, PGA, headphone amplifier, speaker amplifier
- Analog & digital routing/mixes:
- Line/headphone out = analog in (ADC bypassed)
- Line/headphone/speaker out = ADC + digital in
- Digital out = ADC + digital in
- Internal digital loopback
- Mono mixes
- Flexible clocking options
- Main or secondary operation
- High impedance digital output option (for easy MUXing between codec & other data sources)
- Quarter-speed mode - (i.e. allows 8 kHz Fs while maintaining a flat noise floor up to 16 kHz)
- 4 kHz to 96 kHz sample rates
- I²C control port operation
- Temperature monitor & shutdown
- Headphone/speaker detection input
- Pop and click suppression
Parametric Specifications
| Discontinued Product |
| Recommended Replacement: WM8962B |