Key Features

• Multi-bit Sigma Delta Converters
  • DAC: 18bit with 94dB SNR (‘A’ weighted) , 48kHz
  • ADC: 14bit with 82dB SNR (‘A’ weighted), 16kHz
• Microphone Inputs
  • 3 gain pre-setting (28dB/34dB/40dB) with AGC
  • 32 gain steps @1.5dB and MUTE
  • supply for electret microphone
  • microphone detection
  • remote control by switch
• Line Inputs
  • volume control via serial interface
  • 32 steps @1.5dB and MUTE
  • stereo or 2x mono or mono differential
• Line Outputs
  • volume control via serial interface
  • 32 steps @1.5dB and MUTE
  • 1Vp @10k Ohm
• Audio Mixer
  • 10 channel input/output mixer with AGC
  • mixes line inputs and microphones with DAC
  • left and right channels independent
• High Efficiency Headphone Amplifier
  • volume control via serial interface
  • 32 steps @1.5dB and MUTE
  • 2x40mW @16 Ohm driver capability
  • headphone and over-current detection
  • phantom ground eliminates large capacitors
• High Power Speaker Amplifier
  • volume control via serial interface
  • 32 steps @1.5dB and MUTE
  • 2x500mW @8 Ohm driver capability
  • over-current detection
• Power Management
  • step up for system supply (3.0V – 3.6V)
  • step down for CPU core (0.85V – 1.8V, 200mA)
  • step up for backlight (15V, 38.5mA)
  • LDO for digital supply (2.9V, 200mA)
  • LDO for analogue supply (2.9V, 200mA)
  • LDO for peripherals (1.7V-3.3V, 200mA)
  • LDO for peripherals (3.1V-3.3V, 200mA)
  • LDO for RTC (1.0V-2.5V, 200mA)
  • LDO for USB 1.1 transceiver (3.26V, 10mA)
  • battery supervision
  • 10sec emergency shut-down
• Battery Charger
  • automatic trickle charge (50mA)
  • prog. constant current charging (100-400mA)
  • prog. constant voltage charging (3.9V-4.25V)
• Real Time Clock
  • ultra low power 32kHz oscillator
  • 32bit RTC sec counter
  • selectable alarm (seconds or minutes)
• General Purpose ADC
  • 10bit resolution
  • 16 inputs analogue multiplexer Interfaces
  • I²S digital audio interface
  • 2 wire serial control interface
  • watchdog via serial interface
  • power good pin
  • 128bit unique ID (OTP)
  • 17 different interrupts
• Package CTBGA64 [7.0x7.0x1.1mm] 0.8mm pitch