Frequency Generating Section; Bluetooth Section; Global Navigation Satellite System Section - Motorola ST7000 Basic Service Manual
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Also See for ST7000:
- Quick reference (82 pages) ,
- Product information manual (86 pages) ,
- Feature user manual (91 pages)
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MN002952A01-AH
Chapter 2: Overview
•
Off Channel Detector and Inverting Schmitt Trigger
•
Balanced-Unbalanced Converter (BALUN)
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Limiter
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2-bit 6/12/18 dB Step Attenuator
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Discrete Front Filter
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Low Noise Amplifier (LNA) integrated with Step Attenuator and Automatic Gain Control (AGC)
continuous attenuation
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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.
2.3.4
Frequency Generating Section
The frequency generating section includes the following components.
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RFIC Fractional-N Synthesizer
•
Reference Oscillator
•
Loop Filter
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Voltage Multiplier
2.4
Bluetooth Section
The Bluetooth (BT) section includes the following main components.
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BT Antenna
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RF Connector
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Bandpass Filter
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Switch
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TCXO
•
BT IC
2.5
Global Navigation Satellite System Section
The Global Navigation Satellite System (GNSS) section includes the following main components.
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GNSS Antenna
•
Front Filters
•
GNSS IC
30
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