Integrated L1-Band GPS Receiver
Typical Application Circuit
V CC
39pF
680pF
470 μ H
5.6pF
470 μ H
680pF
39pF
100pF
22pF
680pF
5.6pF
680pF
28
27
26
25
24
23
22
V CC
100pF
22pF
V CC 1
1
Σ
MAX2741
21
SDO
SPI DATA OUT
TO BASEBAND PROCESSOR
N.C.
2
20
N.C.
33.6MHz
GPS RF INPUT
FROM GPS BPF
100pF
2.2pF
6.2nH
RFIN
3
LNA
1612.8MHz
90
/2
0
/96
19
V CC 5
100pF
1nF
V CC
V CC
V CC 2
4
/16128
ADC
18
GPSIF0
V CC
V CC
1nF
100pF
100pF
22pF
V CC 3
V CC 4
5
6
VCO
3225.6MHz
/192
200kHz
16.8MHz
P.D.
/R
MUX
17
16
GPSIF1
GPSIF2
GPS DATA AND CLOCK
TO BASEBAND PROCESSOR
100nF
100pF
GND
7
SPI INTERFACE
REF
15
GPSCLK
OSC
8
9
10
11
12
13
14
22nF
36k ?
100pF
SPI CLOCK AND DATA INTO
220pF
BASEBAND PROCESSOR
H/W SHUTDOWN LINE
FROM BASEBAND PROCESSOR
Table 9. Digital Test-Mode-Select Description
SYSTEM TCXO
(2MHz TO 26MHz)
MODE
3
2
1
0
REGISTER SETTING
CONFIG1:D9 to D8
11
10
01
00
GPSIF2
SIGN
M COUNTER
CHARGE PUMP UP
CML CLOCK
DIGITAL OUTPUT FUNCTION
GPSIF1
LSB
R COUNTER
CHARGE PUMP DOWN
CALIBRATE LPF END
GPSIF0
MSB
HANDSHAKE STATUS
SDO
XTL CLOCK SELECTED
Digital Test Bus
The digital test bus (DTB) is provided to allow for easy
bench analysis of the digital workings of the receiver.
______________________________________________________________________________________
11
相关PDF资料
MAX2742ECM+D IC GPS RF FRONT END 48TQFP
MAX2745ECM+D IC GPS RF FRONT END 48TQFP
MAX2750AUA+ IC VCO MONO 2.4GHZ 8-MSOP
MAX2752EVKIT EVAL KIT
MAX2754EVKIT+ KIT EVAL FOR MAX2754
MAX2769BETI/V+T IC RCVR GPS UNIVERSAL 28TQFN
MAX2769EVKIT+ KIT EVAL FOR MAX2769
MAX2821ETM+T IC TXRX 802.11B 2.4GHZ 48-TQFN
相关代理商/技术参数
MAX2741USBDONGLE 制造商:Maxim Integrated Products 功能描述:
MAX2742CCM 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
MAX2742CCM+ 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
MAX2742ECM 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
MAX2742ECM+ 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
MAX2742ECM+C0V 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
MAX2742ECM+D 功能描述:射频接收器 GPS Front End Downconverter 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
MAX2742ECM+T 制造商:Maxim Integrated Products 功能描述:RCVR 48TQFP EP - Tape and Reel