Siemens 1218RF User Manual
1218RF USER'S MANUAL
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Siemens Industry Software B.V.
1218RF User's manual
Release date: 2016-02a
1218RF USER'S MANUAL
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Contents
1 Overview .................................................................................................................................................... 3
2 Operation ................................................................................................................................................... 3
3 Performance .............................................................................................................................................. 3
4 Approval and usage ................................................................................................................................... 4
4.1 FCC compliance ................................................................................................................................. 4
4.2 FCC ID ................................................................................................................................................. 4
4.3 FCC labeling requirements ................................................................................................................ 4
5 Adaptive Frequency Hopping .................................................................................................................... 4
6 Active Channel Selection / Listen-Before-Talk .......................................................................................... 5
7 Mechanical ................................................................................................................................................ 6
8 Mounting ................................................................................................................................................... 6
9 Pinout ........................................................................................................................................................ 7
10 Module types ......................................................................................................................................... 8
10.1 Master module .................................................................................................................................. 8
10.2 Slave module ..................................................................................................................................... 8
11 Programming ......................................................................................................................................... 9
11.1 Output power .................................................................................................................................... 9
11.2 Antenna diversity............................................................................................................................... 9
11.3 RF data rate ....................................................................................................................................... 9
12 Integration ............................................................................................................................................. 9
13 Antenna ................................................................................................................................................. 9
1218RF USER'S MANUAL
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1 Overview
The 1218RF module is a wireless lossless audio interface based on the Texas Instruments CC8520 PurePath™ Wireless
SoC. The module incorporates the crystal, the required RF matching, power supply filtering and filtering on the digital
interface for FCC compliance. The module incorporates a CC2590 range extender with power amplifier for increased
output power and LNA for improved receiver sensitivity.
The module has two antenna options:
- Single antenna
- Dual antenna with antenna diversity using an AS222-92 switch.
The module can be programmed to act both as master and as slave where the master dictates the audio sample r ate
and selects the rf channels, antenna diversity is only available on slave modules.
2 Operation
The 1218RF is a wireless lossless digital audio link based on the Texas Instruments CC8520 PurePath™ Wireless SoC.
It uses multiple techniques for excellent robustness and co-existence.
- Adaptive frequency hopping
- Forward error correction
- Buffering and retransmission
- Error concealment
It interfaces to audio ADCs, DACs and CODECs through an I2S digital audio interface.
The 1218RF module incorporates a CC2590 range extender with power amplifier that has a gain of 14dB, maximum
output power equals +14 dBm (25 mW). Antenna diversity is available on slave modules to reduce effects of RF
multipath fading. The 1218RF module is based on the Texas Instruments CC85XX-CC2590EM_Antenna_Diversity
reference design.
All CC8520 SoC signals are available on 1218RF pins, allowing access to all features of the CC8520 SoC. A complete
overview of the features can be found in the “CC85xx Family User’s Guide”.
3 Performance
The power supply on the 1218RF module is filtered but not regulated. To comply with FCC regulations the carrier must
provide a regulated supply.
Recommended operating conditions
Parameter
Min
Max
Unit
Operating ambient temperature range, TA
-40
+85
°C
Operating supply voltage
2.4
3.6
V
RF characteristics, CC8520 + CC2590
Parameter
Test condition
MIN
TYP
MAX
Unit
RF frequency range
2400
2483.5
MHz
Data rate
Shaped 8FSK
5
Mbps
Output power
Maximum output power setting
11 dBm
Receiver sensitivity
5 Mbps
-87 dBm
Occupied bandwidth
99% energy bandwidth, 5 Mbps
3.8 MHz
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