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CC2430F32RTC 参数 Datasheet PDF下载

CC2430F32RTC图片预览
型号: CC2430F32RTC
PDF下载: 下载PDF文件 查看货源
内容描述: 真正的系统级芯片解决方案的2.4 GHz IEEE 802.15.4 / ZigBee的 [A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee]
分类和应用: 电信集成电路
文件页数/大小: 212 页 / 1862 K
品牌: TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
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CC2430  
Radio : Transmitter Test Modes  
14.30 Transmitter Test Modes  
oscillator is selected using the CLKCON  
register and that the crystal oscillator has  
stabilized.  
CC2430 can be set into different transmit test  
modes for performance evaluation. The test  
mode descriptions in the following sections  
requires that the chip is first reset, the crystal  
14.30.1 Unmodulated carrier  
An unmodulated carrier may be transmitted by  
setting MDMCTRL1L.TX_MODE to 2, writing  
0x1800 to the DACTSTH:DACTSTL registers  
and issue a STXON command strobe. The  
transmitter is then enabled while the  
transmitter I/Q DACs are overridden to static  
values. An un-modulated carrier will then be  
available on the RF output pins.  
A plot of the single carrier output spectrum  
from CC2430 is shown in Figure 48 below.  
Figure 48: Single carrier output  
14.30.2 Modulated spectrum  
The CC2430 has built-in test pattern  
for each new byte. The length of the  
transmitted data sequence is 65535 bits. The  
transmitted data-sequence is then:  
a
generator that can generate a pseudo random  
sequence using the CRC generator. This is  
enabled by setting MDMCTRL1L.TX_MODEto 3  
and issuing a STXON command strobe. The  
modulated spectrum is then available on the  
RF pins. The low byte of the CRC word is  
transmitted and the CRC is updated with 0xFF  
[synchronization header] [0x00, 0x78, 0xb8,  
0x4b, 0x99, 0xc3, 0xe9, …]  
Since a synchronization header (preamble and  
SFD) is transmitted in all TX modes, this test  
mode may also be used to transmit a known  
CC2430 Data Sheet (rev. 2.1) SWRS036F  
Page 171 of 211