MC13175  MC13176
                        
                           UHF FM/AM TRANSMITTER
   
The MC13175 and  MC13176  are  one  chip  FM/AM  transmitter  subsystems
designed  for AM/FM communication systems.  They include a Colpitts cristal
referencene  oscillator,  UHF  oscillator,  8  (MC13175)  or  16  (MC13176)
prescaler  and  phase  detector  forming a versataile PLL system.  Targeted
applications are in the 470 MHz band and 902 to 928 MHz band covered by FCC
Title  47,  Part 15.  Other application include local oscillator sources in
UHF and 900 MHz video transmitters,  RF Local Area Network (LANs)' and high
friequency clock drivers. The MC13175/76 offer the following features:
     - UHF Current Controlled Oscillator
     - Uses  Easily  Available  3rd  Overtone  or  Fundamental  Cristal for
       Reference
     - Fewer External Parts Required
     - Low Operating Supply Voltage (1.8 to 5 Vdc)
     - Low Supply Drain Currents
     - Power Output Adjustable (Up to +10 dBm)
     - Differential Output for Loop Antenna or Balun Transformer Networks
     - Power Down Feature
     - ASK Modulated by Switching Outut On and Off
     - (MC13175) Fo=8xFref; (MC13176) Fo=32xFref
                        
              MAXIMUM RATING (Ta=25C, unless otherwise noted)
      Power Supply Voltage                          Vcc=7.0 max Vdc
     Operating Supply Voltage Range                 Vcc=1.8...5.0 Vdc
     Junction Temperature                           Tj=+150 C
     Operating Ambient Temperature                  Ta=-40...+85 C

  ELECTRICAL CHARACTERISTICS (Vee=-3Vdc, Ta=25 C,unless outherwise noted)
     Supply Current (Power down: I11 & I16=0)                Iee1=-0.5mkA
     Supply Current (Enable [Pin 11] to Vcc thru 30k, I16=0) Iee2=-14mA
     Total Supply Current (Transmit Mode)                    Iee3=-34mA
        (Imod=2.0 mA; Fo=320 MHz)
     Differencial Output Power (Fo=320MHz; Vref[Pin9]=
     500mVp-p; Fo=NxFref}
       Imod=2.0mA                                            Pout=+4.7dBm
       Imod=0mA                                              Pout=-45dBm
     Hold-in Range
       MC13175                            Pin 13&14          Fh=6.5MHz
       MC13176                                               Fh=8.0MHz
     Phase Detector Output Error Current
       MC13175                            Pin 7              Ierror=25mkA
       MC13176                                               Ierror=27mkA
     Oscillator Enable Time               Pin 11,8           Tenable=4.0ms
     Amplidude Modulation Bandwidh        Pin 16             BWam=25MHz
     Spurious Outputs (Imod=2.0mA)        Pin 13&14          Pson=-50dBc
     Spirious Output  (Imod=0mA)                             Psoff=-50dBc
     Maximum Divider Input Frequehcy                         Fdiv=950MHz
     Maximum Output Frequency             Pin 13&14          Fo=950MHz