Radio Pulse MG2475 User manual

www.radiopulse.co.kr
MG2475-Dongle User’s Guide
(No. AHW1007)
V1.0

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www.radiopulse.co.kr
REVISION HISTORY
Version
Date
Description
V1.0
2015.05.19
▪First version is released.

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CONTENTS
1. INTRODUCTION................................................................................................................................... 4
2. DEFINITIONS ........................................................................................................................................ 5
3. FEATURES.............................................................................................................................................. 6
4. HARDWARE DESCRIPTION ................................................................................................................ 7
4.1. MG2475-DONGLE BLOCK DIAGRAM ......................................................................................................................... 7
4.2. MG2475-DONGLE LAYOUT AND DESCRIPTION ....................................................................................................... 8
4.3. MG2475-DONGLE MECHANICAL DRAWING.......................................................................................................... 10
4.4. MG2475-DONGLE ELECTRICAL SCHEMATICS......................................................................................................... 11
ANNEX A ISP DOWNLOADER ............................................................................................................ 12

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1. INTRODUCTION
This guide explains the specification of MG2475-Dongle. The MG2475-Dongle is an RF to
USB dongle type module for PC(or Host) connection which can be performed with its USB
HID function. Actually the MG2475-Dongle has several USB HID functions such as AUDIO,
HID MOUSE, HID KEYBOARD, and so on.

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2. DEFINITIONS
MG2475: 2.4GHz RF Transceiver Chip in SoC type developed by RadioPulse, applied to
ZigBee, IEEE802.15.4-2003, 2006.
MG2470B: 2.4GHz RF Transceiver Chip in SoC type developed by RadioPulse, applied
to ZigBee, IEEE802.15.4-2003, 2006.
MG2470B-RDB: Remote controller Development Board using LM2475-C(or LM2470B-C)
LM2475-C: Chip antenna type MG2475 module for MG2475-RDK.
MG2475-Dongle: ‘RF to USB Bridge Controller’module in USB dongle type which is
connected to Host. It connects RF communication and USB communication.
MG2470-GS-MPU6150: 6-axis Motion Tracking Module(3-axis gyroscope, 3-axis
accelerometer)
MG2470-TP-TC30Q: Touch Pad Module. It’s a third party solution.
 MG2470-EVB(Evaluation Board): a PC interface board of LM2475-EM(or LM2470B-EM).
This board makes it possible to download user programs to LM2475-EM or connect LM2475-
EM to host programs in PC system.
CP210x Device Driver: Device Driver Program to connect MG2470B-RDB / MG2470-
EVB to PC by USB cable. In installation procedure of Device Programmer MD, CP210x
Device Driver installation is automatically questioned. A user can install it then.
Device Programmer MD: a PC GUI program for firmware downloading provided by
RadioPulse. It is used to update the firmware for LM2475-C(or LM2470B-C) and MG2475-
Dongle(or MG2470B-Dongle).

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3. Features
The MG2475-Dongle offers the following features;
RF Tx and Rx with MG2475.
Several USB HID functions(Audio, Mouse, Keyboard and others).
Firmware downloading & debugging connector(1.27mm, 1x6)
One LED
- Debugging or Pairing (D1)
One user defined key(1 Push Button for Pairing)

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4. HARDWARE DESCRIPTION
4.1. MG2475-Dongle block diagram
Figure 1. Block diagram of MG2475-Dongle

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4.2. MG2475-Dongle layout and description
MG2475-Dongle is an ‘RF to USB Bridge Controller’module in USB dongle type which is
connected to Host(or PC). It connects RF communication and USB communication.
It can be operated as audio, key board, and mouse functioned as USB HID in host side. It is
not necessary to install a device driver separately.
Figure 2. MG2475-Dongle top view
Figure 3. MG2475-Dongle bottom view
③MG2475
④Key(P3_2)
⑤NUC120 Download Port
⑥USB A type Plug
①Chip Antenna
②MG2475 Debug
/ Download Port
⑦USB Controller

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Table 1.
No.
Description
Reference
Designator
①
Fusca 2.4GHz SMD Antenna
ANT1
②
MG2475 Debug / Download Port,
Port for MG2475 firmware update and debugging(UART1)
1
2
3
4
5
6
VCC_3V
RxD1
TxD1
ISP
RESETB
GND
J4
③
MG2475, RadioPulse SOC 2.4GHz RF Transceiver
U1
④
Key(P3_2), P3_2 GPIO Interrupt
SW1
⑤
NUC120 Download Port,
Firmware update for ‘USB Controller’
J1
⑥
USB Atype Plug, Connector to host USB.
J3
⑦
Controller including USB Controller, HID function.
Third Party Solution.
U2

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4.3. MG2475-Dongle mechanical drawing
Figure 4. MG2475-Dongle dimension

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4.4. MG2475-Dongle electrical schematics
Figure 5. MG2475-Dongle schematic
VCC_3V
VCC_3V
Radiopulse
MG2475
U1
MG2475-QFN40
1 2 3
34
4 6 5 7 8 9
11
16
12
13
14
15
17
20
18
19 31
21 22 24 23 25 26 27 28 29 30
32
33
35
39
38
37
40
10
36
41
AVDD_PLL3V AVDD_RF3V RF_P
RESETB
RF_N RBIAS AVDD_RF1.2V AVDD_ANA3V ATEST0 (P3[3]) ATEST1 (P3[2])
P1[7]
P1[1]
P1[6]
XOSCI_32K(P1[4])
XOSCO_32K(P1[3])
DVDD2_IO3V
P1[0]
P3[5]
P3[7]
P3[6] NC
P3[4] P3[1]
DVDD_F3V
P3[0] P0[7] P0[6] P0[5] P0[4] P0[3] P0[2]
P0[1]
P0[0]
DVDD1_IO3V
XOSCI
XOSCO
DVDD_3V
AVDD_CP1.2V
MS
VDD
BTM_GND
R9 2.2K
P3_6
U_CONTROL
USB_D+
R1 510k
XT1 12Mhz/3225/CL=10pF
1
2
4
3
X
GND
GND
X
RF_N
ICERST
R12 10K
L4 NC
VCC_3V
RF_N
XOSCI
VCC_3V
TP6
ICEDAT
RESETB
AVDD_RF1.2V
ANT1
Fusca 2.4GHz SMD Antenna A10192
1 23
1 23
C27 1pF
RXD1
VCC_3V
P1_1
R1833
C30 100nF
XOSCO
P1_6
ICECLK
RBIAS
J1 CON5 (NC)
1 2 3 4 5
C24
1uF/10%
MG_TX_MCLK
TXD1
C12
10uF/Tantal/2012
VCC_3V
R20100
TXD1
VCC_3V
KEY_PUSH
C21
30pF
SCL
SCL
VCC_3V
NUC_MCLK
L3
3.9nH
R7 100K
ISP
P0_7
C6 0.1uF
CD2
1uF/10%
VCC_3V
ISP
P0_5
R24 10K
TP8
SDA
VCC_3V
NUC_BCLK
MG2475 1.0
MG2475-DONGLE
Custom
2 2Tuesday, April 21, 2015
Title Size Document Number Rev Date: Sheet of
VCC_3V
RESETB
C29
1.8pF
MG_TX_MCLK
L5
2pF
R14 100
I2S Interface
VCC_3V
MG_TX_LRCLK
RF_P
P1_7
MG_TX_BCLK
C1 15pF
R22100
VBUS
SW1
SW / MT1136E
1 4 2 3
C15 0.1uF
MG2475_DOWN_HEADER
VCC_3V
XOSCI
C25 1.2pF
SDA
MG_TX_LRCLK
ICECLK
C3 1uF
CD3 1uF/10%
R26 330
TP9
NUC_DOWN_HEADER
P3_1
VCC_3V
AVDD_RF1.2V
C28 1.2pF C20
10nF
NUC_LRCLK
ICERST
CD5 1uF/10%
Use Murata Chip C,L Only
MG_TXD0 R10
2.2K
P3_7
P3_2
ICEDAT
U2
NUC120LC_LQFP48
1 2 3 4 5 6 7 8 9
10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36
37
38
39
40
41
42
43
44
45
46
47
48
CLK0/CP00/PB.12 X32O X32I I2C1SCL/PA.11 I2C1SDA/PA.10 I2C0SCL/PA.9 I2C0SDA/PA.8 RX1/PB.4 Tx1/PB.5 LDO VDD VSS
VBUS
VDD33
D-
D+
PB.0/RX0
PB.1/TX0
PB.2/RTS0
PB.3/CTS0
PC.3/MOSI00/I2SDO
PC.2/MISO00/I2SDI
PC.1/SPICLK0/I2SBCLK
PC.0/SPISS00/I2SLRCLK
PA.15/PWM3/I2SMCLK
PA.14/PWM2 PA.13/PWM1 PA.12/PWM0
ICE_DAT
ICE_CK
AVSS
PA.0/ADC0 PA.1/ADC1 PA.2/ADC2 PA.3/ADC3 PA.4/ADC4
PA.5/ADC5
PA.6/ADC6
PA.7/ADC7
AVDD
PC.7/CPN0
PC.6/CPP0
PB.15/INT1
XT1_OUT
XT1_IN
/RESET
PVSS
STACD/PB.8
MG_RXD0
L2 5.1nH
L1
2.4nH
50-ohm line width 0.8mm, Clearance 0.2mm, 2Layer, 1.0T
P0_0
VCC_3V
R25 10K
KEY_PUSH
USB_D-
U3 ELM9830BB
1 2
3
VSS
Vout
Vin
C26 4.7nH
MG_SDI
1.27mm(1x6)
MG_SDI
R21100
P1_0
P0_6
D1
LED0603
C2 15pF
VBUS
USB_D-
Y1
32M :3225M, CL=16pF
4 13
2
G/V X1/C X2/O
G/G
** 1uF(CD2~CD5) Tolerance 10% **
P0_4
RXD1
CD1 1nF
MG_TX_BCLK
VCC_3V
VBUS
J3
USBAM-04SM2
1 2 3 4 5 6
MG_SDO
CD4
1uF/10%
R19100
Caution: Phase Noise Generation
MG_SDO
P3_5
P1_4
C7
10uF/Tantal/2012
USB_D+
NUC_BCLK
C16
10nF
L6 2.4nH
10~20ppm apply
RF_P
P3_0
TP7
P3_4
U_CONTROL
C11 0.1uF
R11 10K
NUC_LRCLK
VCC_3V
J4 CON6
1 2 3 4 5 6
C22
30pF
** Crystal **
XOSCO
MG_RXD0P3_3
R1733
C4 0.1uF
MG_TXD0
NUC_MCLK
C18 10uF/Tantal/2012

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Annex A ISP Downloader
MG2475-Dongle Firmware Downloading Processing with ISP
Downloader
A-1. ISP DOWNLOADER
Please follow procedure below to download firmware into MG2475-Dongle(MG2475) by
using ISP Downloader.
[Figure 6] is outline of the ISP Downloader.
Figure 6. ISP Downloader
6pin ISP Connector (1.27mm pin pitch)
Pin No
1
2
3
4
5
6
Function
VCC_3V
RXD
TXD
ISP
RESET
GND
You can download firmware or check the debugging message after connecting a PC and
MG2475 by ISP Downloader. When the PC USB and MG2475 UART are connected, data
can be transmitted. Also, MG2475 mode can be switched by ISP switch and Reset switch.
(Firmware download mode and General mode)
USB A type Plug
ISP Switch
6pin ISP Connector
RESET Switch

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※Caution: The exterior of ISP Downloader is similar to MG2475-Dongle but the
function is completely different.
A-2. MG2475 Firmware download using ISP Downloader
Figure 7. Connection of ISP Downloader and MG2475-Dongle
a. Connect MG2475-Dongle and ISP Downloader by 1.27mm pitch 6pin cable.(See to
[Figure 7].)
b. Connect USB plug of ISP Downloader to PC(host).
c. Press and release Reset switch while pressing down ISP switch of ISP Downloader.(Do
not release the ISP switch.)
d. Download program by starting Device Programmer MD on PC.
e. Release ISP switch and detach the ISP download from PC.
Detach 1.27mm 6pin Cable and connect USB plug of MG2475-Dongle to PC to use.
※ Reference: Please refer to ”Device Programmer MD User’s Guide” for detailed
information of Device Programmer MD.
ISP Downloader
1.27mm pitch
6pin cable
MG2475-Dongle

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RadioPulse Inc
U-SPACE #1106, 660, Daewangpangyo-ro, Bundang-gu,
Seongnam-si, Gyeonggi-do, 463-400, Korea
URL: www.radiopulse.co.kr
Tel: [phone]
Fax: [phone]
[email protected]
About RadioPulse Inc.
RadioPulse is a Being Wireless solution provider offering wireless communication & network
technologies and developing next generation wireless networking technologies.
The new wireless networking solutions envisioned by RadioPulse will enable user to enjoy wireless
technologies with easy interface.
Founded in April of 2003, the company maintains it headquarters and R&D center in Korea.
Copyright (c) 2015 RadioPulse. All rights reserved.