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Integrated with the digital processing unit (DPU), the analog processing unit (APU) interfaces to the RF module, while featuring voice codes, a low-power oscillator, and battery management support.
- Analog master with on-chip power-on reset, voltage regulators and DC/DC converter control logic
- Battery management support
- Analog input output with 6-channel 8-bit ADC, adjustable current source, 8-bit D/A converter, low noise mic supply generation, and touch screen interface
- Interface to RF module with GFSK pulse shaper featuring free programmable coefficients, RSSI measurement with programmable time constants, on-chip hardware for fast antenna diversity, and comparator for use as data slicer
- Voice codecs with switchable sensitivity and low-noise preamplifier; two-voice codec channel support for OM6115 types; single-voice codec channel and hands-free amplifier are available in OM6116 types
- Low-power crystal oscillator with programmable on-chip tuning capacitors
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Product Graphics
Block Diagram
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