AD6537_PrD_ncbaPreliminary Technical DataFEATURESBaseband Transmit Section GMSK Modulator I-channel & Q-channel Transmit DACs and Filters Power Ramping DAC Baseband Receive Section I-channel and Q-channel Receive ADCs and Filters Auxiliary Section Voltage Reference Automatic Frequency Control DAC Auxiliary ADC Light Controllers Audio Section 8 kHz & 16 kHz Voiceband Codec 48 kHz Monophonic DAC Power Amplifiers Power Management Section Voltage Regulators Battery Charger Battery Protection Digital Processor Interface Control, Baseband, and Audio Serial Ports Interrupt LogicGSM Analog BasebandAD6537AD6525 or AD6526 AD6537 Light Controllers CSPORT ADC DAC Ram DAC DAC GMSK BSPORT DAC Filter Filter Tone Filter ASPORT DAC Switch ADC ADC Crystal & Varactor LEDs OthelloHeadhones or Headset Filter ADC Mi……