聯(lián)發(fā)科技 MT3339 是多合一的 GPS 衛(wèi)星定位系統(tǒng)單芯片(SoC)。它可廣泛應(yīng)用于移動通信、車用、定時、個人防盜追蹤系統(tǒng)、數(shù)字相機(jī)與工業(yè)應(yīng)用。MT3339 具備高追蹤精準(zhǔn)度,能在擁擠的城市環(huán)境中提供更好的表現(xiàn)。
MT3339 僅僅只需外九個被動外部組件,同時與聯(lián)發(fā)科技 MT3333 和 MT3337 的腳位兼容,使您能有彈性的設(shè)計(jì)一系列不同層級的設(shè)備,并減少重復(fù)的硬件開發(fā)工作。
MT3339 內(nèi)置的 LNA 可達(dá)到 2.2 dB 的 total receiver chain NF,所以可以不需要外置的 LNA 組件。另外,透過芯片上的 image-rejection mixer,您也不需要插件 SAW filter。
MT3339 在提供持續(xù)定位的同時,也提供最低的功耗。透過數(shù)個高端功能如 AlwaysLocate?、EASY?、HotStill?、EPO? 以及日志功能,MT3339 適用于各種可攜帶式設(shè)備應(yīng)用,如數(shù)字相機(jī)、手機(jī)、可攜式媒體播放器與游戲設(shè)備。
22 tracking / 66 acquisition-channel GPS receiver
Supports up to 210 PRN channels
Supports multi-GNSS including QZSS and SBAS ranging
Supports WAAS/EGNOS/MSAS/GAGAN
12 multi-tone active interference cancellers (with ISSCC2011 award)
RTCM ready
Indoor and outdoor multi-path detection and compensation
Supports FCC E911 compliance and AGPS
Maximum fixed update rate up to 10 Hz
AlwaysLocate? advanced location awareness technology
EPO?/HotStill? orbit prediction
EASY? self-generated orbit prediction
Supports logger function
TCXO Frequency 16.368 MHz, 12.6 ~ 40 MHz
TCXO Frequency variation: ±2.0 ppm
Crystal Frequency: 26 MHz, 12.6 ~ 40.0 MHz
Crystal Frequency accuracy: ±10 ppm
Adjustable duty cycle
Typical accuracy: ±10 ns
1.8V SMPS built-in SoC
Direct lithium battery connection (2.8V ~ 4.3V)
Self build 1.1V RTC LDO, 1.1V core LDO, and 2.8V TCXO LSO
Acquisition: 25 mW
Tracking: 18 mW
AlwaysLocate?: 3 mW