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PCD5003AH 데이터시트 PDF




NXP Semiconductors에서 제조한 전자 부품 PCD5003AH은 전자 산업 및 응용 분야에서
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부품번호 PCD5003AH 기능
기능 Enhanced Pager Decoder for POCSAG
제조업체 NXP Semiconductors
로고 NXP Semiconductors 로고


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PCD5003AH 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
PCD5003A
Enhanced Pager Decoder for
POCSAG
Product specification
File under Integrated Circuits, IC17
1999 Jan 08




PCD5003AH pdf, 반도체, 판매, 대치품
Philips Semiconductors
Enhanced Pager Decoder for POCSAG
5 BLOCK DIAGRAM
Product specification
PCD5003A
handbook, full pagewidth
ZSD
ZSC
ZLE
RXE
ROE
26
27 SYNTHESIZER
28 CONTROL
24
RECEIVER
25 CONTROL
DATA FILTER
RDI 23
AND
CLOCK
RECOVERY
DON
3
CLOCK
CONTROL
16
TS1 TEST
TS2 20 CONTROL
XTAL1
XTAL2
18
17
EEPROM
RESET
SET-UP
7
EEPROM CONTROL
I2C-BUS
CONTROL
9
10
DECODING
DATA
CONTROL
POCSAG
SYNCHRONIZATION
MAIN DECODER
RAM
CONTROL
MASTER
DIVIDER
TIMER
REFERENCE
RAM
22
REGISTERS
AND
INTERRUPT
CONTROL
5
21
ALERT
GENERATION
AND
CONTROL
30
31
1
32
2
4
OSCILLATOR
PCD5003A
VOLTAGE
DOUBLER
AND LEVEL
SHIFTER
15
14
13
8
6, 19
n.c.
11 12, 29
VDD VSS
MGL568
RST
SDA
SCL
DQC
INT
BAT
VIB
LED
ATL
ATH
ALC
REF
CCN
CCP
VPO
VPR
Fig.1 Block diagram.
1999 Jan 08
4

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PCD5003AH 전자부품, 판매, 대치품
Philips Semiconductors
Enhanced Pager Decoder for POCSAG
Product specification
PCD5003A
Alert-only calls only consist of a single address code-word.
Numeric and alphanumeric calls have message
code-words following the address. A message causes the
frame structure to be temporarily suspended. Message
code-words are sent until the message is completed, with
only the sync words being transmitted in their expected
positions.
Message code-words are identified by an MSB of logic 1
and are coded as shown in Fig.3. The message
information is stored in a 20-bit field (bits 2 to 21). The data
format is determined by the call type: 4 bits per digit for
numeric messages and 7 bits per (ASCII) character for
alphanumeric messages.
Each code-word is protected against transmission errors
by 10 CRC check bits (bits 22 to 31) and an even-parity bit
(bit 32). This permits correction of maximum 2 random
errors or up to 3 errors in a burst of 4 bits (a 4-bit burst
error) per code-word.
The POCSAG standard recommends the use of
combinations of data formats and function bits, as given in
Table 1. Other (non-standard) combinations will be
received normally by the PCD5003A. Message data is not
deformatted.
In the PCD5003A error correction methods have been
implemented as shown in Table 2.
Random error correction is default for both address and
message code-words. In addition, burst error correction
can be enabled by SPF programming. Up to 3 erroneous
bits in a 4-bit burst can be corrected.
The error type detected for each code-word is identified in
the message data output to the microcontroller, allowing
rejection of calls with too many errors.
handbook, full pagewidth
PREAMBLE BATCH 1
BATCH 2
BATCH 3
LAST BATCH
10101 . . . 10101010
SYNC | CW CW | CW CW | . . . . . | CW CW
FRAME 0 FRAME 1
FRAME 7
Address code-word 0 18-bit address 2 function bits 10 CRC bits P
Message code-word 1 20-bit message
10 CRC bits P
MCD456
Fig.3 POCSAG code structure.
1999 Jan 08
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관련 데이터시트

부품번호상세설명 및 기능제조사
PCD5003A

Enhanced Pager Decoder for POCSAG

NXP Semiconductors
NXP Semiconductors
PCD5003AH

Enhanced Pager Decoder for POCSAG

NXP Semiconductors
NXP Semiconductors

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