Microcyber HT1200M, User Manual

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List of Contents
General Description.................................................................................................................... 5
Features....................................................................................................................................... 5
Typical Application..................................................................................................................... 6
Pin Assignment............................................................................................................................6
Pin Description............................................................................................................................8
Function Description.................................................................................................................10
Package Information................................................................................................................. 15
Characteristics........................................................................................................................... 17
List of Tables
Table 1 HT1200M Pin Descriptions........................................................................................ 7
List of Figures
Figure 1 HT1200M Hart Modem Typical Application............................................................6
Figure 2 (a) 28Pin PLCC Pinout Package (b) 32Pin LQFP Pinout Package....................... 6
Figure 3 Reset Timing..............................................................................................................8
Figure 4 HT1200M Block Diagram.......................................................................................10
Figure 5 Demodulator Signal Timing.................................................................................... 11
Figure 6 OTXA Waveform (1200 Hz)................................................................................... 11
Figure 7 OTXA Waveform (2200 Hz)................................................................................... 12
Figure 8 Receive Schematic...................................................................................................13
Figure 9 (a) Crystal Oscillator (b) Oscillator......................................................................14
Figure 10 LQFP32..................................................................................................................15
Figure 11 PLCC28................................................................................................................. 16