Motorola i897 - Transmitter Path Section

OVERVIEW: Transmitter Path Section
1.7 Transmitter Path Section
This section includes the following lineup Roadrunner (baseband D/A conversion),
SledgeHammer (Analog baseband to RF), and JANUS (TX RF back end: power amplifier,
etc) for linear modulation of the iDEN portables. When the unit is transmitting,
microphone audio is routed to the CODEC, where it is amplified and digitized by the A/D
converter in the CODEC. Digital voice is then sent from the CODEC to the DSP for
processing. (See i897 Block Diagram Figure 1-10 Below).
Figure 1-10. i897 Block Diagram
6880401P59-O
35