RoyalTek REB-4315 User Manual
REB-4315 Operational Manual
REB-4315 Operational Manual
Version 0.2
2010/09/23
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,
T ao Yuan 333, Taiwan
TEL: 886-3-3960001
F AX: 886-3-3960065
contact sales: http://www.royaltek.com/contact
REB-4315 Operational Manual
Content
1. Introduction...........................................................................................................2
1.1 Product Applications.....................................................................................2
2. Product Pictures ...................................................................................................3
3. REB-4315 Block Diagram.....................................................................................3
4. REB-4315 Technical Specification.........................................................................4
5. Reference schematic:...........................................................................................5
6. Power Design Consideration ................................................................................6
7. Recommend layout PAD:......................................................................................7
8. Mechanical diagram .............................................................................................8
9. Interface document...............................................................................................9
10. Software Interface................................................................................................12
11. Package Specification and Order Information......................................................16
12. Contact Royaltek..................................................................................................17
Revision History .........................................................................................................17
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REB-4315 Operational Manual
1 Introduction
RoyalTek REB-4315 is the newest generation of RoyalTek GPS module. The module is
powered by latest SiRF Star IV chip and RoyalTek proprietary navigation technology that
provides you with stable and accurate navigation data. SiRF Star IV is the high sensitivity
navigation engine tracks as low as -163dBm. 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
48 track verification channels
Power supply 1.8 volts
SMT type with stamp holes
Small form factor with embedded SiRF Star IV technology.
Removes in-band jammers up to 80 dB-Hz, track up to 8 CW jammers
Embedded InstantFix CGEE and Reverse CGEE(3 days)
Enhanced algorithm for navigation stability
Excellent sensitivity for urban canyon and foliage environments.
1.1 Product Applications
Automotive navigation
Personal positioning and navigation
Mobile gaming
Cameras
Asset Tracking
Others location-aware consumer devices
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2 Product Pictures
3 REB-4315 Block Diagram
System block diagram description:
a. External antenna.
b. 16 Mega bits flash memory
REB-4315 Operational Manual
Pin 1
c. 22 pin I/O pins
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REB-4315 Operational Manual
4 REB-4315 Technical Specification
Impedance：50Ω
No Function Specification
GPS receiver
1 Chipset
2 Frequency L1 1575.42MHz.
3 Code C.A. Code.
4 Channels 48 track verification channels
5 Sensitivity (Acquisition) It shall show C/No ≧ 40 dB-Hz when external power
6 Cold start 35 sec (50% -130dBm Fu 0.5 ppm Tu ±2s Pu 30km)
7 Warm start 35 sec (50% -130dBm Fu 0.5 ppm Tu ±2s Pu 30km)
8 Hot start 1 sec (50% -130dBm Fu 0.5 ppm Tu ±2s Pu 30km)
SiRF Star IV, GSD4e
= -130dBm.
9 Reacquisition 0.1sec typical
10 Position accuracy 2.5meters(50% 24hr static, -130dBm)
11 Maximum altitude 18288 m
12 Maximum velocity 514 m/s
13 Update rate 1Hz
14 Protocol setup NMEA0183 standard V3.01 and
backward compliance-Adjustable by firmware
Interface
15 I/O Pin 22pins
Power consumption
16 Vcc DC 1.8v(Max. 1.89v)
17 Current
Hibernate Mode Typ.20uA@1.8V(Average w/o ext. Antenna)
18
Mechanical requirements
19 Dimension(mm) 13*15*2.2
GPS :
Typ.52mA@1.8V(Avg Acquisition w/o ext. Antenna)
Typ.41mA@1.8V(Avg Tracking w/o ext. Antenna)
20 Weight ≦3g
Environment
21 Operating temperature -30 ~ 85℃
22 Humidity ≦95%
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5 Reference schematic:
For example:
Note:
REB-4315 Operational Manual
(1) Ground Planes:
These pin(8、18、20、21、22) should be connect to ground.
(2) Serial Interface:
(Ⅰ)The TX pin is the serial output data.<UART data transmit (TX)>
(Ⅲ)The RX pin is the serial input data.< UART data receive (RX)>
(3) 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
your choice. (Impedance 50Ω)
Recommend used Active antenna (Gain 27).
(4) Power:
Connect VCC_IN_1V8 pin to DC 1.8V. The power supply must add bypass
capacitor(10uF and 1uF).It can reduce the Noise from power supply and increase
power stability.
Shutdown
Shutdown the REB-4315 module, don’t remove the Vcc_IN_1V8 Pin, must be
use on/off pulse make it into Hibernate mode.(It’s will keep the Warm start
and Hot start function work well)
(5) nRESET：
External reset input with internal pull-up, active low.
(6) ON/OFF：
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