sm8211m Nippon Precision Circuits Inc, (NPC), sm8211m Datasheet - Page 2

• Manufacturer Part Number: sm8211m
• Description: Pocsag Decoder For Pagers
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

BLOCK DIAGRAM
PIN DESCRIPTION
I:Input
Number
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
O:Output
ADD-DET
SYN-VAL
RX-DATA
BACKUP
TX-DATA
RX-CLK
TX-CLK
BREAK
TEST1
TEST2
SIG-IN
Name
XVDD
TX-DATA
VDD
RST
VSS
XTN
BS1
BS2
BS3
TX-CLK
XT
SIG-IN
XVDD
VDD
VSS
XTN
XT
Receive data register
I/O
O
O
O
O
O
O
O
O
Address register
–
–
–
I
I
I
I
I
I
I
I
I
RST
Flag register
Digital PLL
BACKUP
Oscillator circuit supply pin. Capacitor connected between XVDD and VSS.
RF control main output signal
RF DC-level adustment signal
PLL setup signal
Supply voltage
Test pin. Leave open for normal operation.
Test pin. Leave open for normal operation.
ID data read sync clock
ID data input
Message transmission interrupt
Hardware reset input
Received data output (to CPU)
Power save
NRZ signal input pin
Ground
Address detection output. HIGH on detection
Received data output sync clock
Sync code detection output. HIGH on detection
76.8 or 153.6 kHz oscillator or external clock input pin
Oscillator output pin
TEST1
BREAK
SM8211M
Timing control
TEST2
BS1
Preamble pattern
Data comparator
Error correction
Sync code
Idle code
BS2
Description
BS3
NIPPON PRECISION CIRCUITS—2
RX-CLK
ADD-DET
SYN-VAL
RX-DATA