CX20709 Audio CODEC with On-Chip Voice/Audio DSP, Headphone and Class-D Amplifier Output
The CX20709 is one of Conexant’s Speakers-on-a-Chip (SPoC) solutions with the proprietary low cost on-chip Digital Signal Processor (DSP) performing comprehensive audio effects and voice enhancements for convergence audio entertainment and voice communication applications. The complete suite of in-line DSP features frees up processing power for other applications without compromising on cost and future firmware scalability. The device integrates high performance 24-bit DACs and ADCs, a range of digital and analog input/output channel selections for flexible routing and mixing, a stereo headphone driver, and optional 2.5 W x 2 Class-D amplifier or Pulse-Width Modulator (PWM) interface. This product is part of the CX2070x SPoC family, which includes CX20702, CX20703, CX20704, CX20705, CX20706, and CX20707.
Features:
- EDN Innovation Awards Finalist - Best Multimedia SoC
- Design News Golden Mousetrap Awards Best New Products 2010 Finalist
- 24-bit DAC/ADC, SNR 102dB, THD – 92dB at 48kHz 3.3V
- Programmable on-chip proprietary DSP
– Subband acoustic echo suppression and cancellation
– Beam-forming
– Noise reduction for inbound speech (far end) and outbound speech (near end)
– Subband line echo canceller (two-way intercom applications)
– Dynamic loudness adaptor
– Mic auto gain control
– Digital equalizer (10 bands/Channel)
– Dynamic range compression
– Digital Crossover
– 3D Expander (Phantom mode and Immersion mode) - 4-wire and 5-wire digital audio I/O (I2S/PCM/SPDIF), supporting full duplex independent sampling rates
- Two microphones interfaces with on-chip bias supply
- Integrated PWM output, re-taskable as differential line out
- Optional 2.5 W x 2 BTL stereo Class-D speaker drivers
- Flexible power management
- Audio sample rate: 8, 11.025, 12, 16, 22.05, 24, 32,44.1, 48, 64, 88.2, 96kHz
- One 3-wires I2C or 4-wire SPI slave interface for external MCU
Applications:
- PC speakers system
- LCD display/sound bar
- Home automation/intercom
- Wi-Fi® phone/Smart phone docking systems
- Mobile Internet Devices, Portable Navigation Devices, Portable Media Player)
- Multimedia IP phone
- Telepresence/Unified Communication Device
- Embedded applications
- Intercom systems
- Full-duplex hands-free telephony
- Unified Communication peripherals
Have a Sales representative contact me regarding this product.
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