● RF Switches
● Off Channel Detector and Inverting Schmitt Trigger
● Balanced-Unbalanced Converter (BALUN)
● Limiter
● 2-bit 6/12/18 dB Step Attenuator
● Discrete Front Filter
● Low Noise Amplifier (LNA) integrated with Step Attenuator and Automatic Gain Control (AGC) continuous
attenuation
● 13 dB (350 MHz) or 12 dB (800 MHz) of Gain with LNA Bypass Option
● Discrete Post-Selector Filter (350 MHz) or SAW Post-Selector Filter (800 MHz)
● RFIC for mixing
● Baseband filtering and internal 55 dB AGC continuous attenuation (inclusive of the internal 10 dB step
attenuator) which consists of all the baseband receive chain and mixer.
2.1.2.4
Frequency Generating Section
The frequency generating section includes the following components.
Table 21: Frequency Generating Section Components
Radio Model Component
MTP3100/MTP3150/MTP3200/MTP3250 Version
A
● RFIC Fractional-N Synthesizer
● Reference Oscillator
● Main VCO
● Loop Filter
● Voltage Multiplier
MTP3100/MTP3150/MTP3200/MTP3250 Version
B and MTP3500/MTP3550
● Low Band VCO (350–410 MHz)
● High Band VCO (410–470 MHz)
● RFIC Fractional-N Synthesizer
● Reference Oscillator
● Loop Filter
● Voltage Multiplier
MTP3500 and MTP3550 Version D (806–870 MHz)
● RFIC Fractional-N Synthesizer
● Reference Oscillator
● Main VCO
● Loop Filter
● Voltage Multiplier
● RF Coupler
● Tx LO Buffer
68015000841-EL
Chapter 2: Overview
36
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