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PT9120

更新时间： 2022-04-23 23:00:11

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PT9120 数据手册

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

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

PT9120 PRE1.0

- 1 -

August, 2007

12 3 4 5 6 7...18

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