S5T8701X01-E0R0 PDF даташит
Спецификация S5T8701X01-E0R0 изготовлена «Samsung semiconductor» и имеет функцию, называемую «FLEX ROAMING DECODER II». |
|
Детали детали
Номер произв | S5T8701X01-E0R0 |
Описание | FLEX ROAMING DECODER II |
Производители | Samsung semiconductor |
логотип |
30 Pages
No Preview Available ! |
FLEX TM ROAMING DECODER II
S5T8701
INTRODUCTION
This FLEXTM Roaming Decoder II date sheet describes the operation of the
S5T8701.
The S5T8701 simplifies implementation of a FLEXTM paging device by interfacing
with any of several off-the-shelf paging receivers and any of several off-the-shelf
host microcontroller/microprocessors. Its primary function is to process information
received and demodulated from a FLEX radio paging channel, select messages
addressed to the paging device and communicate the message information to the
host. The S5T8701 also operates the paging receiver in an efficient power
consumption mode and enables the host to operate in a low power mode when
monitoring a signal channel for message information.
32-LQFP-0707
FEATURES
• FLEXTM paging protocol decoder
• 16 programmable user address words
• 16 fixed temporary addresses
• 16 operator messaging addresses
• 1600,3200,and 6400bps(bits per second) decoding
• Any-phase or single-phase decoding
• Uses standard Serial Peripheral Interface (SPI) in slave mode
• Allow low current STOP mode operation of host processor
• Highly programmable receiver control
• Real time clock time base
• FLEX fragmentation and group messaging support
• Real time clock over-the-air update support
• Compatible with synthesized receivers
• SSID and NID Roaming support
• Low Battery Indication(External detector)
• 28 used pins (32-pin package standard)
• Backward compatible to the standard and roaming FLEX decoder ICs
• Internal demodulator and data slicer
• Improved battery savings via partial correlation and intermittent receiver clock
• Full support for revision 1.9 of the FLEX protocol
• 32-pin LQFP package
• Supply voltage: 1.8 to 3.6V
• Operating Frequency: 76.8kHz or 160kHz
1
No Preview Available ! |
S5T8701
ORDERING INFORMATION
Device Name
S5T8701X01-E0R0
Package Type
32-LQFP-0707
FLEX TM ROAMING DECODER II
Operating Temperature
-25°C to 85°C
2
No Preview Available ! |
FLEX TM ROAMING DECODER II
SYSTEM BLOCK DIAGRAM
S5T8701
Receiver
Synthesizer
Programming Control
Receiver
Control
S0/IFIN
S5T8701
Host
Microprocessor
38.4 or 40kHz Clock
15pF
User
Interface
Low Battery LOBAT
Detector
15pF
Figure 1 : Example Block Diagram Using Internal Demodulator
When configured to use the internal demodulator, the S5T8701 connects to a receiver capable of generating a
limited (i.e. 1-bit digitized) 455kHz or 140kHz IF signal. In this mode, the S5T8701 has 7 receiver control lines
used for warming up and shutting down a receiver in stages. The S5T8701 has the ability to detect a low battery
signal during the receiver control sequences. It interfaces to a host MCU through a standard SPI. It has a 1minute
timer that offers low power support for a time of day function on the host.
When using the internal demodulator, the oscillator frequency (or external clock) must be 160kHz. The CLKOUT
signal can be programmed to be either a 38.4kHz signal created by fractionally dividing the oscillator clock, or a
40kHz signal creating by dividing the oscillator clock by 4.
3
Скачать PDF:
[ S5T8701X01-E0R0.PDF Даташит ]
Номер в каталоге | Описание | Производители |
S5T8701X01-E0R0 | FLEX ROAMING DECODER II | Samsung semiconductor |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |