Flagship Smartphone

With a focus on lowering system power, improving battery life and reducing board space, Cirrus Logic provides innovative ICs for smartphones and mobile applications. These solutions include smart audio codecs that are designed to off-load audio tasks from the applications processor, thereby saving system power, as well as Class D amplifiers that drive superior audio performance to the external speakers in space-saving, cost effective form factors.

Flagship Smartphone


Smart Codec
  • 600 MIPS multi-core audio signal processor
  • Programmable multi-mic audio processing
    • Stereo Adaptive Active Noise Cancelation (ANC)
    • Mono-adaptive earpiece receive ANC
    • Transmit path noise and echo cancelation
  • Integrated 6/8 channel 24 bit HiFi codec
    • 6 ADC, 100 dB SNR mic input
    • 8 DAC, 115 dB SNR HP playback
    • 121 dB SNR HP playback with Master HiFi suite
  • Multi-purpose HP/earpiece/line outputs
  • Integrated speaker protection with external boosted amplifier
  • Supports sample rates up to 192 kHz
  • Ultrasonic accessory support
  • Low power standby and configurable wakeup
Boosted Amplifier
  • High efficiency Class-D architecture
    • 3.5 W into 8 ohms @ 1% THD+N
    • 105 µVrms ICN @ 18 dB gain
  • Integrated boost converter up to 8.0V
    • Class-HG tracking of audio signal
    • Battery supply and boost supply monitoring
  • Integrated amplifier output monitoring
  • Over-temperature foldback and protection
  • Short-circuit protection
HiFi D/A Converter
  • 120 dB dynamic range, -107 dB THD+N
  • Stereo 24 bit DAC, 192 kHz sample rate
  • Low-latency digital filters
  • Direct Stream Digital® mode (SACD)
MEMS Microphone
  • Analog and digital
  • Top and bottom ports
  • Signal-to-noise ratio (SNR):
    • 65 dB [analog]
    • 63 dB [digital]
  • Acoustic overload point (AOP) @ 10% THD:
    • 127 dB SPL [analog]
    • 120 dB SPL [digital]
  • Sensitivity with ±1 dB tolerance:
    • -38 dBV/Pa [analog]
    • -26 dBFS/Pa [digital]

Smart Codecs

Supported Products

Boosted Amplifiers

Supported Products
  • CS35L33
    8 V Boosted Class-D Amplifier

HiFi D/A Converters

Supported Products
  • CS4398
    120 dB, 24-Bit, 192 kHz Stereo D/A Converter with DSD Support
  • WM8741
    High Performance Stereo DAC

MEMS Microphones

Supported Products
  • WM7121PE
    Top Port Analog Silicon Microphone
  • WM7132PE
    Bottom Port Analog Silicon Microphone
  • WM7216E
    Low Power Top Port Digital Silicon Microphone
  • WM7236E
    Bottom Port Digital Silicon Microphone
WM8281 WM5102S
Voice
  • 2-mic Handset TX NR & AEC
  • 1 or 2-mic Speakerphone TX NR & AEC
  • RX NR & AVC
  • TX & RX Comfort Noise
  • TX & RX EQ
  • Dynamic RX Volume & EQ
-
  • RX MBC
-
  • Sidetone
-
  • Wind Noise Reduction
-
  • Receiver ANC (mono)
-
Playback
  • Mono/Stereo 8/16/24/32/48 kHz Playback & PEQ
  • Virtual Stereo Surround
  • Stereo ANC
Record
  • Up to 4 Microphones
-
  • Multi-mic Wind Noise Reduction
-
  • Microphone Noise Reduction
-
  • Background Noise Reduction
-
  • Focus Noise Reduction
-
  • Stereo Record
-
Control
  • 1 Input Channel
  • 1 Output Channel
  • Single Trigger Word Detection
  • Sensory Engine Support
  • Multi-trigger Word Detection
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