描述 Description

Please note: this product is being discontinued and is not recommended for new designs.

The SE4150L is a highly integrated GPS receiver ICoffering high performance and low-power operation in awide range of low-cost applications. It is particularlywell-suited to high sensitivity L1-band GPS systems.

The SE4150L is ideal for use in GPS receivers needingdual-antenna inputs. The SE4150L includes two RFinputs with integrated antenna switching and externalactive-antenna current detection. A high-linearity onchipLNA is used with one of the inputs, allowing theSE4150L to be used in multi-function wireless systems,without the need for additional external LNA devices. Afully integrated image-reject low-IF mixer is used with alinear AGC, an on-chip IF filter, and a 2-bit analogue-todigitalconverter (ADC).

The SE4150L features two gain control modes, tooptimize the performance of the LNA and mixer forsystems which either require high signal handling, orsystems which need minimal supply current.

The SE4150L synthesizer is fully integrated includingthe VCO and PLL loop-filter. The synthesizer canoperate from a 16.368 MHz reference frequency,normally with an external TCXO.

The SE4150L is optimized for operation from a 3.3 Vcore power supply. It incorporates current-controlledlow-spurious output buffers which may operate from aseparate external supply. Output buffers supplysufficient current to drive up to 15 pF load directly.

特性 Features

? Single-conversion L1-band GPS radio with integrated IF filter
? Integrated LNA with high-gain (20 dB typ.) and low NF (0.9 dB typ.)
? Integrated antenna switching with active antenna current detection
? Low cascaded system noise figure of 1.2 dB typical
? 2-bit SIGN & MAG digital IF output
? 2.7 V - 3.6 V operation
? Standby current <10 μA
? Fully integrated PLL synthesizer, VCO & loop filter compatible with 16.368 MHz ref. frequency
? 4 x 4 x 0.9 mm 24 pin QFN
? Pb-free, RoHS compliant and Halogen free

簡介

SE4150L屬于RF/IF射頻/中頻RFID的射頻接收器。由制造生產(chǎn)的SE4150L射頻接收器RF 接收器用于接收已調制的射頻信號并對其進行解調，然后將數(shù)據(jù)傳送到系統(tǒng)中進行處理。頻率范圍是 AM、FM、WB、0 Hz 至 64 GHz，數(shù)據(jù)速率為 250 bps 至 16 Gbps，數(shù)據(jù)接口包括連接器、I2C、I2S、引腳焊盤、并行、PCB、串行、焊盤、SPI、UART 和 USB。