RoyalTek MEB-1315 Manuale utente
RoyalTek Confidential
MEB-1315 User Manual
MEB-1315 User Manual
Version 1.0
2009/01/16
This document contains information highly confidential to RoyalTek Company LTD
(RoyalTek). It is provided for the sole purpose of the business discussions between customer
and RoyalTek and is covered under the terms of the applicable Non-Disclosure Agreements.
Disclosure of this information to other parties is prohibited without the written consent of
RoyalTek.
Prepared by RoyalTek Company LTD.
4F., No.188, Wen Hwa 2nd Rd., Kuei Shan,
Tao Yuan 333, Taiwan
TEL: 886-3-3960001
FAX: 886-3-3960065
http://www.royaltek.com/contact
RoyalTek Confidential
MEB-1315 User Manual
Content
1.Introduction ............................................................................................................................ 2
1.1 Product Applications ........................................................................................................... 2
1.2 Product Pictures................................................................................................................... 3
1.3 The interface Board Pin Definition ..................................................................................... 4
1.4 MEB-1315 Series Block Diagram....................................................................................... 6
1.5 MEB-1315 Technical Specification..................................................................................... 7
1.6 Application Circuit .............................................................................................................. 9
1.7 Recommend Layout PAD...................................................................................................11
1.8 Mechanical Dimension...................................................................................................... 12
1.9 Hardware interface ............................................................................................................ 13
2 Software Interface.......................................................................................................... 16
3 RoHS Reflow Diagram.................................................................................................. 22
4 Package Specification and Order Information............................................................... 23
5 Contact Royaltek ........................................................................................................... 23
6 Revision History............................................................................................................ 23
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MEB-1315 User Manual
1 1.Introduction
RoyalTek MEB-1315 small form factor board is the newest generation of RoyalTek GPS
module. The module is powered by latest MTK single chip and RoyalTek proprietary
navigation technology that provides you with stable and accurate navigation data. The
smallest form factor and miniature design is the best choice to be embedded in a device such
as portable navigation device, personal locator, speed camera detector and vehicle locator.
Product Features
SMT type with stamp holes
Support USB/TTL interface
TCXO design
NMEA-0183 compliant protocol/ customize protocol
Enhanced algorithm for navigation stability
Excellent sensitivity for urban canyon and foliage environments.
Auto recovery while RTC crashes
1.1 Product Applications
Automotive navigation
Personal positioning and navigation
Marine navigation
MID or Net book application
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MEB-1315 User Manual
1.2 Product Pictures
(1) MEB-1315
(2) MEB-1315 Interface board
(3) Connection with REV-2000 evaluation Kit
Pin 1
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MEB-1315 User Manual
1.3 The interface Board Pin Definition
(1) J1 Pin Definition:
Contact
Number
Signal Name
Descriptions Characteristic
1 N.C. Connect to Test point Non-Used
2 D+ USB Device Port Data + I/O
3 D- USB Device Port Data - I/O
4 VDDBUS Device power Supply Power：3V3±5%
5 GND GND GND
6 N.C. N.C. Non-Used
7 TXA Data Transport out
Output
VOH (max. +3.1V；min. +2.4 V)
VOL (max. +0.4V；min. -0.3 V)
8 RXA Data Receiver in
Input
VIH (max. +3.6V；min. +2.0 V)
VIL (max. +0.8V；min. -0.3 V)
9 N.C. Connect to Test point Non-Used
10 GND GND GND
VOH：Output High-level Voltage
VOL：Output Low-level Voltage
VIH：Input High-level Voltage
VIL ：Input Low-level Voltage
Pin 1
J 1 10pin Connector
J2
IPEX connector
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MEB-1315 User Manual
(2) J2 IPEX connector
Pin# Signal Name
Descriptions Characteristic
1 RF Signal RF Signal feed in RF Signal
2 GND GND GND
Pin 1
Pin 2
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MEB-1315 User Manual
1.4 MEB-1315 Series Block Diagram
System block diagram description:
a. External antenna.
b. 4 Mega bits flash memory.
c. 22 pin I/O pin.
Antenna
MT
3329
COM Port
Internal
SAW
LNA
USB Port
MEB
-
1315
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MEB-1315 User Manual
1.5 MEB-1315 Technical Specification
Impedance：
：：
：50Ω
No Function Specification
GPS
1 Chipset
- MTK MT3329
The single chip solution is offered as a 81-pin TFBGA
(6.2x6.2x1.3mm)
Internal Memory: Flash type on 4Mb
2 Frequency - L1, 1,575.42 MHz
3 Channel - 22 tracking/ 66 acquisition-channel
4 C/A Code - 1,023 MHz
5 Sensitivity Tracking – 165 dBm/Acquisition -148dBm
6 TTFF Fix time(chipset
open sky)
- Hot start: 1s
- Warm start: 33s
- Cold start: 36s
7 Accuracy - Position: within 10m for 90%
- Velocity: 0.1m/s
8 Interface Protocol -
NMEA 0183 standard V3.01 and backward
compliance
GGA(1),GLL(1),GSA(1),GSV(1),RMC(1),VTG(1),
9600bps
9 TCXO - 16.369MHz
10 Navigation applications -
SBAS (WAAS, EGNOS, GAGAN, MSAS), DGPS
(RTCM), and AGPS.
11 LNA (INTERNAL) Gain: 19 dB (Typ.)
Noise Figure ≦2.5 dB(Max)
Interface
12 I/O Pin 22pin USB/TTL
Power consumption
13 Voltages 3.3V±5%
14 System Currents Avg. 55mA @3.3V w/o ext. Antenna
Environment
15 Temperature - Operating : -40 ~ 85℃
- Storage : -40 ~ 85℃
16 Humidity ≦95%
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MEB-1315 User Manual
Mechanical requirements
17 Dimension (mm) -13±0.2 x 15±0.2 x 2.3 ±0.2mm
18 Weight ≦0.8g
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MEB-1315 User Manual
1.6 Application Circuit
Reference schematic:
RXB R4 0 Ω
R10
open
50 ohm trace
C12
10uF
TP4 1
C11
10uF
L5
39nH
U2
OPEN(MEB-1315)
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
21 22
RXB
TXB
PPS
TXA
RXA
GPIO-10
GPIO-0
GPIO-1
NC
/STANDBY V_RTC_3V3
VIN_3V3
VDD_USB
VDD_DM
VDD_DP
NC
RF_VOUT
GND
GPS_RF_IN
GND
GND GND
R3
OPEN +3V3
TXA
+3V3
C10
0.1uF
RXA
TP3 1
+3V3
Active antenna
R5 0 Ω
R12
10k
RF matching circuit
U306
1
2 3
TP5 1
R6
OPEN
USB+
Battery
R11 470 ohm
C10
0.1uF
R7 33 Ω
R3
open
U304
ROHM RB705D
1
3
2
TXB
R8 33 Ω
U305
ROHM RB705D
1
3
2
+3V3(alway s)
USB-
GAIN:1 stage LNA 17dB
J2
U.FL-R-SMT3
2
1
Note:
(1) Ground Planes:
These pins(18、20、21、22) should be connected to ground.
(2) Serial Interface:
(Ⅰ)The TXA pin is the serial output data. Default output GPS protocol. (NMEA
Sentence).
(Ⅱ). The RXA pin is the serial input data. Default output GPS protocol. (NMEA
Sentence).
(Ⅲ) The TXB pin is the serial output data (Default Null)
(Ⅳ) The RXB pin is the serial input data (Default Null).
(3) Backup Battery:
It’s recommended to connect a backup battery to V_RTC_3V3 pin.
In order to enable the features of the warm start and hot start of the GPS receiver.
(4) RF_IN:
Connecting to the antenna has to be routed on the PCB. The transmission line must
to be control impedance from RF_IN pin to the antenna or antenna connector of
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