a baseband processor for producing outgoing transmit (TX) data and a TX control signal;

a digital modulator that receives TX data, that digitally modulates the outgoing TX data to produce one of a frequency shift keying (FSK) or phase-shift keying (PSK) modulated digital information signal based upon the TX control signal, wherein the digital modulator further includes:

a modulation switching control block that receives the TX control signal, producing a modulation control signal to select one of a plurality of types of modulation data, the modulation switching control block also producing a multiplexer (mux) control signal to couple one of the plurality of types of modulation data to a mux output;

a pulse shaping block for producing FSK phase information based upon a first value of the modulation control signal, which FSK phase information consists of one of a logic zero or a phase value for a FSK modulated signal based upon the TX data, the pulse shaping block further producing I and Q modulated data based upon the TX data for a second value of the pulse modulation control signal;

a multiplexer (mux) block coupled to receive the I and Q modulated data at a first input pair and further coupled to receive a logic one and a logic zero at a second input pair, the mux block producing the I and Q modulated data received at the first input pair based upon a first value of the mux control signal and for producing the logic one and logic zero received at the second input pair based a second value of the mux control signal;

a phase accumulator coupled to receive the FSK phase information, the phase accumulator producing an accumulated phase value;

a Coordinate Rotation Digital Computer (CORDIC) block coupled to receive the accumulated phase value and further coupled to receive the I and Q modulated data, the CORDIC block producing I and Q channel signals reflecting a phase and magnitude based upon the accumulated phase value and the I and Q modulated data wherein the CORDIC block produces outputs in one of three states based upon the FSK phase information and upon the I and Q modulated data and further wherein:

for a first state, the I and Q channel signals reflecting a rotated unit vector characterized by a phase reflecting the FSK phase information;

for a second state, I and Q channel signals reflecting a vector having a phase and a magnitude based upon the I and Q modulated data and further based upon the FSK phase information; and

for a third state, I and Q channel signals reflecting a vector having a phase and a magnitude based upon the I and Q modulated data;

a DC offset compensation block coupled to receive the I and Q channel signals, the DC offset compensation block for pre-compensating for expected downstream low frequency interference, the DC offset compensation block producing compensated I and Q channel signals; and

an interpolation filter producing up-sampled I and Q channel data characterized by an output sample rate based upon an input sample rate of the compensated I and Q channel signals;

digital to analog converter circuits for converting the up-sampled I and Q channel data to analog I and Q channel signals having a continuous waveform;

filtering circuits for filtering the analog I and Q channel signals; and

a loop circuitry for up-converting the analog I and Q channel signals from a baseband frequency to a specified RF channel.