数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

CC2500-RTR1 数据表(PDF) 24 Page - Texas Instruments

部件名 CC2500-RTR1
功能描述  Single Chip Low Cost Low Power RF Transceiver
PDF  84 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CC2500-RTR1 数据表(HTML) 24 Page - Texas Instruments

Back Button CC2500-RTR1 Datasheet HTML 20Page - Texas Instruments CC2500-RTR1 Datasheet HTML 21Page - Texas Instruments CC2500-RTR1 Datasheet HTML 22Page - Texas Instruments CC2500-RTR1 Datasheet HTML 23Page - Texas Instruments CC2500-RTR1 Datasheet HTML 24Page - Texas Instruments CC2500-RTR1 Datasheet HTML 25Page - Texas Instruments CC2500-RTR1 Datasheet HTML 26Page - Texas Instruments CC2500-RTR1 Datasheet HTML 27Page - Texas Instruments CC2500-RTR1 Datasheet HTML 28Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 84 page
background image
CC2500
PRELIMINARY Data Sheet (Rev.1.2)
SWRS040A
Page 24 of 83
internally according to the control coding. It is
only possible to change state with this
functionality. That means that for instance RX
will not be restarted if SI and SCLK are set to
RX and CSn toggles. When CSn is low the SI
and SCLK has normal SPI functionality.
All pin control command strobes are executed
immediately, except the SPWD strobe, which is
delayed until CSn goes high.
CSn
SCLK
SI
Function
1
X
X
Chip unaffected by
SCLK
/SI
↓
0
0
Generates SPWD strobe
↓
0
1
Generates STX strobe
↓
1
0
Generates SIDLE strobe
↓
1
1
Generates SRX strobe
0
SPI
mode
SPI
mode
SPI mode (wakes up into
IDLE if in SLEEP/XOFF)
Table 18: Optional pin control coding
12 Data Rate Programming
The data rate used when transmitting, or the
data rate expected in receive is programmed
by
the
MDMCFG3.DRATE_M
and
the
MDMCFG4.DRATE_E
configuration registers.
The data rate is given by the formula below.
As the formula shows, the programmed data
rate depends on the crystal frequency.
()
XOSC
E
DRATE
DATA
f
M
DRATE
R
⋅
⋅
+
=
28
_
2
2
_
256
The following approach can be used to find
suitable values for a given data rate:
256
2
2
_
2
log
_
_
28
20
2
−
⋅
⋅
=
⎥
⎥
⎦
⎥
⎢
⎢
⎣
⎢
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
⋅
=
E
DRATE
XOSC
DATA
XOSC
DATA
f
R
M
DRATE
f
R
E
DRATE
If DRATE_M is rounded to the nearest integer
and becomes 256, increment DRATE_E and
use DRATE_M=0.
The data rate can be set from 1.2 kbps to 500
kbps with the minimum step size of:
Data rate
start
[kbps]
Typical
data rate
[kbps]
Data rate
stop [kbps]
Data rate
step size
[kbps]
0.8
1.2/2.4
3.17
0.0062
3.17
4.8
6.35
0.0124
6.35
9.6
12.7
0.0248
12.7
19.6
25.4
0.0496
25.4
38.4
50.8
0.0992
50.8
76.8
101.6
0.1984
101.6
153.6
203.1
0.3967
203.1
250
406.3
0.7935
406.3
500
500
1.5869
Table 19: Data rate step size
13 Receiver Channel Filter Bandwidth
In order to meet different channel width
requirements, the receiver channel filter is
programmable. The MDMCFG4.CHANBW_E and
MDMCFG4.CHANBW_M
configuration registers
control the receiver channel filter bandwidth,
which scales with the crystal oscillator
frequency. The following formula gives the
relation between the register settings and the
channel filter bandwidth:
E
CHANBW
XOSC
channel
M
CHANBW
f
BW
_
2
)·
_
4
(
8
+
⋅
=
The
CC2500 supports the following channel
filter bandwidths:



Html Pages

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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com