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RN42 Schematic ( PDF Datasheet ) - Microchip

Teilenummer RN42
Beschreibung Class 2 Bluetooth Module
Hersteller Microchip
Logo Microchip Logo 




Gesamt 26 Seiten
RN42 Datasheet, Funktion
RN42/RN42N
Class 2 Bluetooth® Module with EDR Support
Features
• Fully qualified Bluetooth® version 2.1 module, sup-
ports version 2.1 + Enhanced Data Rate (EDR)
• ASCII command interface over UART
• Postage-stamp-sized form factor:
- RN42: 13.4 x 25.8 x 2.4 mm
- RN42N: 13.4 x 20.5 x 2.4 mm
• Low-power (26 A sleep, 3 mA connected, 30 mA
transmit)
• UART (SPP or HCI) and USB (HCI only) data con-
nection interfaces
• Sustained SPP data rates: 240 Kbps (Slave mode),
300 Kbps (Master mode)
• HCI data rates: 1.5 Mbps sustained, 3.0 Mbps burst
in HCI mode
• Embedded Bluetooth stack profiles include: GAP,
SDP, RFCOMM, L2CAP protocols, with SPP, HID,
and DUN profile support (does not require any host
stack).
• Bluetooth SIG qualified, end product listing
• Castellated SMT pads for easy and reliable PCB
mounting
• Class 2 power amplifier with on-board PCB trace
antenna (RN42) or external antenna (RN42N)
• Compliance (RN42)
- Modular Certified for the United States (FCC)
and Canada (IC)
- European R&TTE Directive Assessed Radio
Module
- Australia/New Zealand/Japan/Korea/Taiwan
- Bluetooth SIG QDID
• Integrated Crystal, Internal Voltage Regulator,
Matching Circuitry, Power Amplifier, Low Noise,
Memory Amplifier and PCB Antenna
• Easy Integration into Final Product - Minimize Prod-
uct Development, Quicker Time to Market
• Compatible with Microchip Microcontroller Families
(PIC16F, PIC18F, PIC24F/H, dsPIC33 and PIC32)
• Up to 10 meter range
Applications
• Cable replacement
• Barcode scanners
• Measurement and monitoring systems
• Industrial sensors and controls
• Medical devices
RN42/RN42N Module Variants(1)
Model
Antenna
Firmware
Description
RN42
Integral
4.77, 6.15
Class 2, 2.1+EDR, SPP profile
RN42HCI Integral
N/A
Class 2, 2.0+EDR, HCI over UART
RN42HID Integral
6.11
Class 2, 2.1+EDR, HID and SPP profiles
RN42U
RN42APL
RN42N
RN42NHCI
Integral
Integral
External
External
N/A
5.36, 5.43, 5.45
4.77, 6.15
N/A
Class 2, 2.0+EDR, HCI over USB
Class 2, 2.1+EDR, SPP & MFi profiles
Class 2, 2.1+EDR, SPP profile
Class 2, 2.0+EDR, HCI over UART
RN42NHID External
6.11
Class 2, 2.1+EDR, HID and SPP profiles
RN42NU External
N/A
Class 2, 2.0+EDR, HCI over USB
RN42NAPL External
5.36, 5.43, 5.45 Class 2, 2.1+EDR, SPP & MFi profiles
Note 1: For customer part numbers, see Section 4.0 “Ordering Information”. Information on firmware versions can be found
on the RN42/RN42N product web page and the “Bluetooth Data Module Command Reference and Advanced Information
User’s Guide”.
2015 Microchip Technology Inc.
DS50002328A-page 1






RN42 Datasheet, Funktion
RN42/RN42N
TABLE 1-6: PIN DESCRIPTION
Pin Symbol
Type
Description
1 GND
Power
Ground reference
2 SPI_MOSI DI
(Optional) Factory diagnostic, programming and test. See Section 2.8 “SPI
Interface”.
3 GPIO6
DI
Set Bluetooth master.
If GPIO6 = high, module connects to the stored address.
If GPIO3 = high, module enters new Discovery/Pairing mode.
4 GPIO7
DIO
Set baud rate (high = force 9,600, low = 115K or firmware setting)
5 RESET
DI
Active-low Reset
6 SPI_CLK DI
7 PCM_CLK DIO
8 PCM_SYNC DIO
9 PCM_IN
DI
10 PCM_OUT DO
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
(Do not connect) PCM interface(1)
11 VDD
Power
Positive Supply
12 GND
Power
Ground reference
13 UART_RX DI
UART receive input
14 UART_TX DO
UART transmit output
15 UART_RTS DO
UART RTS, goes high to disable host transmitter
16 UART_CTS DI
UART CTS, if set high, it disables transmitter
17 USB_D+
DIO
USB port. 1.5K pullup activated when USB port is ready (~500 ms after reset).
18 USB_D-
DIO
USB port
19 GPIO2
DIO
Status, high when connected, low otherwise. See Section 2.3 “Connection
Status”.
20 GPIO3
DI
Auto-discovery mode = high.
If GPIO6 = high, module performs device enquiry scan searching for a device
with matching class of 0x55AA. If a device is found, the address of the device is
stored in the remote address field and auto-connects.
If GPIO6 = low, module enters Slave mode with special matching class of
0x55AA and waits for a master to discover it.
21 GPIO5
DIO
Status, toggles based on state, low on connect. See Section 2.3 “Connection
Status”.
22 GPIO4
DIO
Set factory defaults. See Section 2.2 “Factory Reset Using GPIO4”.
23 SPI_CSB DI
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
24 SPI_MISO DO
(Optional) Factory diagnostic and test. See Section 2.8 “SPI Interface”.
25 GND
Power
Ground reference (RN42N only)
26 RF ANT
AIO
Antenna, 50-Ohm impedance (RN42N only)
27 GND
Power
Ground reference (RN42N only)
28 GND
Power
Ground reference
29 GND
Power
Ground reference
30 AIO0
AIO
(Not used) Optional analog input
31 GPIO8
DO
UART TX/RX data activity
32 GPIO9
DIO
I/O
33 GPIO10
DIO
I/O (remote DTR signal)
34 GPIO11
DIO
I/O (remote RTS signal)
35 AIO1
AIO
(Not used) Optional analog input
Pin type abbreviation: A = Analog, D = Digital, I = Input, O = Output.
Note 1: Pin numbers 7 through 10 are reserved for future use.
DS50002328A-page 6
2015 Microchip Technology Inc.

6 Page









RN42 pdf, datenblatt
RN42/RN42N
3.0 REGULATORY APPROVAL
This section outlines the regulatory information for the
RN42 module for the following countries:
• United States
• Canada
• Europe
• Australia
• New Zealand
• Japan
• Korea
• Taiwan
3.1 United States
The RN42 module has received Federal Communica-
tions Commission (FCC) CFR47 Telecommunications,
Part 15 Subpart C “Intentional Radiators” modular
approval in accordance with Part 15.212 Modular
Transmitter approval. Modular approval allows the end
user to integrate the RN42 module into a finished prod-
uct without obtaining subsequent and separate FCC
approvals for intentional radiation, provided no
changes or modifications are made to the module cir-
cuitry. Changes or modifications could void the user’s
authority to operate the equipment. The end user must
comply with all of the instructions provided by the
Grantee, which indicate installation and/or operating
conditions necessary for compliance.
The finished product is required to comply with all appli-
cable FCC equipment authorizations regulations,
requirements and equipment functions not associated
with the transmitter module portion. For example, com-
pliance must be demonstrated to regulations for other
transmitter components within the host product; to
requirements for unintentional radiators (Part 15 Sub-
part B “Unintentional Radiators”), such as digital
devices, computer peripherals, radio receivers, etc.;
and to additional authorization requirements for the
non-transmitter functions on the transmitter module
(i.e., Verification, or Declaration of Conformity) (e.g.,
transmitter modules may also contain digital logic func-
tions) as appropriate.
3.1.1
LABELING AND USER
INFORMATION REQUIREMENTS
The RN42 module has been labeled with its own FCC
ID number, and if the FCC ID is not visible when the
module is installed inside another device, then the out-
side of the finished product into which the module is
installed must also display a label referring to the
enclosed module. This exterior label can use wording
as follows:
Contains Transmitter Module FCC ID: T9J-RN42
or
Contains FCC ID: T9J-RN42
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
A user’s manual for the product should include the fol-
lowing statement:
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference in a residential installation. This equip-
ment generates, uses and can radiate radio fre-
quency energy, and if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However,
there is no guarantee that interference will not occur
in a particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference by one or more of the follow-
ing measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is con-
nected.
• Consult the dealer or an experienced radio/TV
technician for help.
Additional information on labeling and user information
requirements for Part 15 devices can be found in KDB
Publication 784748 available at the FCC Office of Engi-
neering and Technology (OET) Laboratory Division
Knowledge Database (KDB) http://apps.fcc.gov/oetcf/
kdb/index.cfm.
DS50002328A-page 12
2015 Microchip Technology Inc.

12 Page





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