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參數(shù)資料
| 型號： | PCD5003A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Enhanced Pager Decoder for POCSAG |
| 中文描述： | 增強(qiáng)傳呼機(jī)POCSAG碼解碼器 |
| 文件頁數(shù)： | 11/44頁 |
| 文件大?。?/td> | 233K |
| 代理商： | PCD5003A |
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1999 Jan 08
11
Philips Semiconductors
Product specification
Enhanced Pager Decoder for POCSAG
PCD5003A
7.16
Sync word indication
The sync word recognized by the PCD5003A is shown in
the call header (bits S3 to S1). The decimal value
represents the identifier number in the EEPROM of the
UPSW in question. A value of 7 indicates the standard
POCSAG sync word.
7.17
Error type indication
Table 10 shows how the different types of detected errors
are encoded in the call data output format.
A message code-word containing more than a single bit
error (bit E3 = 1) may appear as an address code-word
(bit M1 = 0) after error correction. In this event the
code-word is processed as message data and does not
cause call termination.
7.18
Data transfer
Data transfer is initiated either during sync word periods or
as soon as the receiver is disabled after call termination.
If the SRAM buffer is full, data transfer is initiated
immediately during the next code-word.
When the PCD5003A is ready to transfer received call
data an external interrupt will be generated via output INT.
Any message data can be read by accessing the RAM
output register via the I
2
C-bus interface. Bytes will be
output starting from the position indicated by the RAM read
pointer.
Fig.4 ACCESS
synchronization algorithm.
handbook, full pagewidth
OFF to ON status
preamble
sync word
sync word
no sync word
sync word
preamble
preamble
sync word
preamble
sync word
no preamble or
sync word
(3 batches)
no preamble or
sync word
(1 batch)
no preamble or
sync word
(1 batch)
no preamble or
sync word
(15 batches)
switch-on
preamble receive
data receive
data fail
fade recovery
carrier off
MLC247
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCD5003AH | Enhanced Pager Decoder for POCSAG |
| PCD5003 | Advanced POCSAG Paging Decoder |
| PCD5003H | Advanced POCSAG Paging Decoder |
| PCD5008 | FLEX Pager Decoder |
| PCD5008H | FLEX Pager Decoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD5003AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced Pager Decoder for POCSAG |
| PCD5003H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced POCSAG Paging Decoder |
| PCD5003HB-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication Decoder |
| PCD5003U/10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced POCSAG Paging Decoder |
| PCD5008 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:FLEX Pager Decoder |
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