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PT9120 Datasheet(PDF) 1 Page - Princeton Technology Corp

Part No. PT9120
Description  GPS Receiver RF Front End IC
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Maker  PTC [Princeton Technology Corp]
Homepage  http://www.princeton.com.tw
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PT9120 Datasheet(HTML) 1 Page - Princeton Technology Corp

 
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Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT9120 PRE1.0
- 1 -
August, 2007
GPS Receiver RF Front End IC
Preliminary
PT9120
DESCRIPTION
The PT9120 is a single chip Global Positioning System (GPS) receiver front-end IC requiring few
external components and offering extremely low power consumption. The PT9120 employs a
super-heterodyne receiver topology which down-converts the 1575.42MHz L1-band GPS signal to
a 1st IF. The 1st IF is then filtered by an off-chip L-C filter and subsequently sub-sampled by the
2-bit A/D converter to provide both sign and magnitude quantized CMOS level outputs to base band
inputs.
FEATURES
• GPS L1-band (C/A code) receiver
• Integrated LNA and antenna detector
• Fully-monolithic VCO
• Support for several reference frequencies
• 2-bit ADC output (sign and magnitude)
• Extremely low current consumption (7mA at AVDD=TVDD=2.5V)
• Multiple power-down modes
• Available in 28 pins or 24 pins, QFN package
APPLICATION
• GPS systems


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