TMT TM-8258 User manual

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TM-8258 VER 100
ZigBee Module
INSTRUCTION
This radio module will be embedded on the TMT ENGINEERING CO.,LTD.
weighing scale, and therefore there is no user’s manual
1. Features

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This specification is applied to IEEE802.15.4 & RF4CE Module. This module is
embedded with Amplifier and Single chip.
1.1. Description
➢Bluetooth 5 Compliant, 1Mbps
➢ IEEE802.15.4 compliant, 250kbps
➢ 2.4GHz proprietary 1Mbps/250kbps mode with Adaptive
Frequency Hopping feature support
➢ 64kB on-chip SRAM with up to up to 32kB retention
➢ 512kB internal Flash
➢ ➢ Rx sensitivity: -98dBm@BLE 1Mbps, -100dBm@
IEEE802.15.4 250kbps
 Tx output power: Typ. +10dBm
 RSSI monitoring with +/-1dB resolution
 Power supply: 1.8V~3.6V
2.Recommended operating condition
Item
Sym.
Min
Typ.
Max
Unit
Condition
Power-supply
voltage
VDD
1.8
3.3
3.6
V
power
supply
Operating
Temperature
Range
TOpr
-10
45
℃

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3.RF TX Characteristics(+25℃)
Item
Spec.
Remark
Frequency Range
2400~2483.5MHz
Frequency Tolerance
<±20ppm
Occupied B.W
<2.2MHz
Output Power (Max)
10dBm (+0/-2dB)
VSWR
<2.0 : 1
Flatness
<2dB
Spurious Emissions
1GHz Under
<-70dBm
1GHz ~ 2.4GHz
<-70dBm
~ 12GHz
<-70dBm
2nd Harmonic
<-60dBm
3rd Harmonic
<-60dBm
PSD
±3.5MHz
>30dBc
20dBc over
Secondary Radiated
Emission
<-70dBm
Limit of secondary
radiated emissions.

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4.Dimensions

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5.
Protocol(38400 bps , N, 8, 1)
7.1 Send Data
Header : 0x21 + Data
Ex> Data 3byte 0x30, 0x31, 0x32
0x21 + 0x30 + 0x31 + 0x32
7.2 Pan ID Set
Header : 0x12 + PAN ID(2byte) + Sum(PAN ID 2byte)
Ex> Pan ID : 0x31, 0x43
0x12 + 0x31 + 0x 43 + 0x74(0x31+ 0x43)
FCC approval
This device complies with Part 15 of the FCC`s 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 undesirable
operation.
To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end
product.
Contains Transmitter module FCC ID: YTZ-TM8258
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 equipment generates, uses and can radiate radio frequency 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 following 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 connected.
-Consult the dealer or an experienced radio/ TV technician for help.
-The OEM integrator is responsible for ensuring the end-user has no manual instruction to remove or
install module.
-The module is limited to installation in mobile or fixed applications.

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IMPORTANT NOTE
This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
device should be installed and must not be co-located or operating in conjunction with any other antenna
or transmitter.
This device is intended only for OEM integrators under the following conditions:
1) This module may not be co-located with any other transmitters or antennas.
2) The antenna must be installed such that 20cm is maintained between the antenna and users.
As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM
integrator is still responsible for testing their end-product for any additional compliance requirements with
this module installed.
In the event that these conditions cannot be met, then the FCC authorizations are no longer considered
valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will
be responsible for re-evaluating the end product including this module and obtaining separate FCC
authorizations.
[MEMO]