
Wolfson Microelectronics plc
DESCRIPTION
The WM8753L is a low power, high quality stereo Codec with integrated Voice CODEC designed for portable digital telephony applications such as mobile phone, or headset with Hi-Fi playback capability.
FEATURES
• Hi-Fi DAC: interfaced over I2S type link
• Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96
• DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)
• ADC SNR 95dB, THD -82dB (‘A’ weighted @ 48kHz)
• On-chip Headphone Driver with cap-less output option
- 40mW output power on 16Ω / 3.3V
- with 16Ω load: SNR 90dB, THD –75dB
- with 10kΩ load: SNR 94dB, THD –90dB
• On-chip speaker driver with 0.5W into 8R
• Voice Codec: interfaced over Voice interface
• supports sample rates from 8ks/s to 48ks/s
• ADC and DAC SNR 82dB, THD -74dB
• Two Differential Microphone Interfaces
- Dual ADCs support noise cancellation in external DSP
- Programmable ALC / Noise Gate
• Low-noise bias supplied for electret microphones
Other features
• On-chip PLLs supporting 12, 13, 19.2MHz and other clocks
• Cap-less connection options to headphones, earpiece, spkr.
• Low power, low voltage
- 1.8V to 3.6V (digital core: 1.42V to 3.6V)
- power consumption <20mW all-on with 2V supplies
- <12mW for PCM CODEC operation
• 7x7x0.9mm QFN package, 5x5x0.9mm BGA package
APPLICATIONS
• MP3 Player / Recorder mobile phone
• Bluetooth stereo headset