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參數資料
| 型號： | MC33593FTA |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | PLL Tuned UHF Receiver for Data Transfer Applications |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP24 |
| 封裝： | PLASTIC, LQFP-24 |
| 文件頁數： | 13/28頁 |
| 文件大小： | 681K |
| 代理商： | MC33593FTA |
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Go to: www.freescale.com
revision 7.0, 5 February 2002
Motorola, Inc., 2002.
STATE MACHINES
AFTER POR RESET STATE MACHINE
There are 3 different modes for the receiver.
Sleep mode
corresponds to the low power consumption mode:
- if SOE=0, the whole receiver is shutdown,
- if SOE=1, the strobe oscillator remains active.
Configuration mode
is used for writing or reading the internal registers. In this mode, the SPI is slave and the
receiver is enabled. The crystal oscillator is running and generates the clock for the SPI. This implies that before
the circuit is in sleep mode, a delay corresponding to the crystal oscillator wake-up time must be inserted
between the falling edge on RESETB and the start of the transmission on the SPI lines. The local oscillator is
running as well. This means that demodulated data can be read on DMDAT but are not sent by the SPI.
In
Run mode
, the receiver is enabled (crystal and local oscillators are running). It is either waiting for an RF
telegram or receiving one.
Figure 14 details the state machine after Power On Reset (POR). The state machine is synchronized by a
sampling clock at 615kHz (sampling period Ts=1.6μs), derivated from the crystal oscillator. The transition time
between state 1 and states 2 or 6 is less than 3
×
Ts.
After POR, the circuit is in
state 0
and configuration registers
’
content is set to the reset value. This enables to
use ROMEO2 in a standalone configuration without any external control.
As long as a low level is applied on RESETB, the circuit stays in
state 1
. This configuration mode enables to write
or read the internal registers through the SPI interface.
Figure 14: After POR state machine
State 1
Configuration mode
SPI active and slave
RESETB=1
AND DME=0
State 2
, see figure 15
State 6
, see figure 16
State 0
Sleep mode
SPI disabled
RESETB=0
RESETB=1
AND DME=1
AND SOE=0
RESETB=1
AND DME=1
AND SOE=1
State 0b
Run mode
Raw data on MOSI
SPI disabled
Power-On Reset
Strobe Counter
≠
SR
AND STROBE=0
Strobe Counter=SR
OR STROBE=1
SPI slave
SPI master
SPI disabled
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33593FTAE | 功能描述:射頻接收器 UHF RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MC33593FTAER2 | 功能描述:射頻接收器 UHF RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MC33593MOD868EV | 功能描述:開發板和工具包 - 無線 MC33593 (ROMEO2) RF EVAL RoHS:否 制造商:Arduino 產品:Evaluation Boards 工具用于評估:AT32UC3L 核心:AVR32 頻率: 接口類型:USB 工作電源電壓:5 V |
| MC33594FTA | 功能描述:射頻接收器 315 434 MHz RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MC33594FTAE | 功能描述:射頻接收器 UHF RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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