PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 142

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

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9.0 Device Characteristics
9.4.5
Symbol
t
t
t
t
S
t
BT
CMW
CMP
SPW
SJT
DRT
Serial Port
Sharp-IR
Consumer Remote Control
SIR
1. t
2. t
3. t
4. t
CWN
MMIN
BTN
CPN
Serial Port, Sharp-IR, SIR and Consumer Remote Control Timing
Single Bit Time in Serial Port and Sharp-IR
Modulation Signal Pulse Width in Sharp-IR
and Consumer Remote Control
Modulation Signal Period in Sharp-IR and
Consumer Remote Control
SIR Signal Pulse Width
SIR Data Rate Tolerance.
% of Nominal Data Rate.
SIR Leading Edge Jitter.
% of Nominal Bit Duration.
is the nominal bit time in Serial Port, Sharp-IR, SIR and Consumer Remote Control modes. It is deter-
is the nominal period of the modulation signal for Sharp-IR and Consumer Remote Control modes. It is
is the nominal pulse width of the modulation signal for Sharp-IR and Consumer Remote Control modes. It
mined by the setting of the Baud Generator Divisor registers
is determined by the MCPW field (bits 7-5) of the IRTXMC registerand the TXHSC bit (bit 2) of the
RCCFG register
determined by the MCFR field (bits 4-0) of the IRTXMC registerand the TXHSC bit (bit 2) of the RCCFG
register.
order for the signal to be accepted by the receiver. These time values are determined by the contents of
the IRRXDC register and the setting of the RXHSC bit (bit 5) of the RCCFG register
and t
MMAX
define the time range within which the period of the incoming subcarrier signal has to fall in
Parameter
(Continued)
t
t
SPW
CMW
t
BT
t
Conditions
Transmitter,
Transmitter,
Transmitter
Transmitter
Transmitter
Transmitter
Transmitter
CMP
142
Receiver
Receiver
Receiver
Receiver
Receiver
Receiver
Variable
Fixed
(
3
/
16
t
t
t
CWN
t
CPN
) x t
BTN
BTN
t
MMIN
1.48
Min
500
BTN
1
25
25
25
2%
4
1
3
2
15
1
(
3
/
16
) x t
t
t
t
t
BTN
CWN
BTN
CPN
t
MMAX
Max
1.78
0.87%
2.0%
2.5%
6.5%
BTN
+ 2%
+ 25
+ 25
+ 25
4
15
1
Unit
ns
ns
ns
ns
ns
ns
ns
s
s