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参数资料
| 型号： | MAX2741 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Integrated L1-Band GPS Receiver |
| 中文描述： | 集成L1波段GPS接收机 |
| 文件页数： | 4/12页 |
| 文件大小： | 239K |
| 代理商： | MAX2741 |
M
Integrated L1-Band GPS Receiver
4
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Pin Description
PIN
1
NAME
V
CC
1
N.C.
FUNCTION
LNA Supply Connection. External RF bypass capacitor to ground required.
Reserved. Make no connections to this pin.
2, 20, 22, 23
3
RFIN
LNA Input. Connect to GPS antenna through a bandpass filter. This input requires an external
matching network to match to 50
. AC-couple to this pin.
VCO Supply Connection. External RF bypass capacitor to ground required.
CML Supply Connection. External RF bypass capacitor to ground required.
Digital Logic and PLL Supply Connection. External RF bypass capacitor to digital ground required.
Ground. Connect to PC board digital ground plane.
4
5
6
7
V
CC
2
V
CC
3
V
CC
4
GND
8
FILT
PLL Loop Filter Connection. This is the output of the phase detector’s charge pump. Use the
recommended filter on EV kit for optimal phase noise and lock time.
9
10
11
SCLK
CS
SDI
SPI Clock Input (CMOS)
SPI Chip-Select Input (CMOS, Active Low)
SPI Data Input (CMOS)
12
SHDN
Full IC Power-Down. This shutdown pin disables the on-chip oscillator and the rest of the IC. To keep
the oscillator running, use the software shutdown (SYNTH:D8); (CMOS, active high).
13
14
15
16
17
18
19
21
24
XTAL
REFCLK
GPSCLK
GPSIF2
GPSIF1
GPSIF0
V
CC
5
SDO
IFIN-
Crystal Oscillator Feedback Capacitor Connection
Reference Clock Input for PLL. Drive with 1.2V
P-P
when using TCXO module.
GPS Clock Output to Baseband. This is the clock used by the ADC to sample the GPS data (CMOS).
Sampled IF Output, Bit 2 (CMOS). See Table 5.
Sampled IF Output, Bit 1 (CMOS). See Table 5.
Sampled IF Output, Bit 0 (CMOS). See Table 5.
IF Supply Connection. External RF bypass capacitor to ground required.
SPI Data Output (CMOS)
1st IF Input (Inverting). Connect this 2.5k
differentially terminated input to the 1st IF filter’s (-) output.
1st IF Input (Noninverting). Connect this 2.5k
differentially terminated input to the 1st IF filter’s (+)
output.
25
IFIN+
26
27
28
IFOUT-
IFOUT+
V
CC
6
GND
1st IF Output (Inverting). Connect this 2.4k
differential output to the 1st IF filter’s (-) input.
1st IF Output (Noninverting). Connect this 2.4k
differential output to the 1st IF filter’s (+) input.
RF Image-Reject Mixer Supply. External RF bypass capacitor to ground required.
RF Ground. Ultra-low inductance connection to ground. Place several vias to PC board ground plane.
Exposed
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| MAX2741ETI | Integrated L1-Band GPS Receiver |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2741AETI+ | 功能描述:射频接收器 Integrated L1-Band GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MAX2741AETI+T | 功能描述:射频接收器 Integrated L1-Band GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MAX2741AEVKIT | 功能描述:GPS开发工具 MAX2741A Eval Kit RoHS:否 制造商:STMicroelectronics 产品:Evaluation Boards 工具用于评估:IT600, STM32F20x 频率:1.575 GHz 工作电源电压:1.8 V 接口类型:Wireless |
| MAX2741ETI | 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MAX2741ETI+ | 功能描述:射频接收器 Integrated L1-Band GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
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