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ATA5423-PLSW Datasheet(PDF) 32 Page - ATMEL Corporation

Part # ATA5423-PLSW
Description  UHF ASK/FSK Transceiver
PDF  100 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATA5423-PLSW Datasheet(HTML) 32 Page - ATMEL Corporation

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4841D–WIRE–10/07
ATA5423/ATA5425/ATA5428/ATA5429
Figure 5-2.
Operation Modes Flow Chart
5.1
OFF Mode
If the power supply (battery) is connected to pin VS1 and/or VS2, and if the voltage on pin VAUX
V
VAUX < 3.5V (typically), then the transceiver is in OFF mode. In OFF mode AVCC, DVCC and
VSOUT are disabled, resulting in very low power consumption (I
S_OFF is typically 10 nA). In OFF
mode the transceiver is not programmable via the 4-wire serial interface.
AVCC = VS1
DVCC = VS1
VSOUT = OFF
IDLE Mode
AVCC = VS1
DVCC = VS1
VSOUT = VS1
or V_REG2
TX Mode
AVCC = VS1
DVCC = VS1
VSOUT = VS1
or V_REG2
AVCC = VS1
DVCC = VS1
VSOUT = VS1
or V_REG2
RX Polling Mode
AVCC = VS1
DVCC = VS1
VSOUT = OFF
RX Polling Mode
RX Mode
AVCC = VS1
DVCC = VS1
VSOUT = VS1
V
VAUX > VS1 + 0.5V
V
VAUX < VS1 + 0.5V
V
VAUX > 3.5V (typ)
V
VAUX < 3.5V (typ)
IDLE Mode
AVCC = VS1
DVCC = VS1
VSOUT = V_REG2
IDLE Mode
AVCC = OFF
DVCC = OFF
VSOUT = OFF
OFF Mode
AVCC = OFF
DVCC = V_REG2
VSOUT = V_REG2
AUX Mode
Pin PWR_ON = 1 or
Pin T1, T2, T3, T4 or
Pin T5
Pin PWR_ON = 1 or
Pin T1, T2, T3, T4 or
Pin T5 or
Bit AVCC_EN = 1
OPM1 = 0 and OPM0 = 1
OPM1
0
1
1
OPM0
1
0
1
TX Mode
RX Polling Mode
RX Mode
OPM1 = 1 and OPM0 = 1
or Bit check ok
VSOUT_EN = 0
Bit check ok
OPM1 = 1 and OPM0 = 1
OPM1 = 1 and OPM0 = 0
OPM1 = 1 and OPM0 = 0
OPM1 = 0 and OPM0 = 1
VSOUT_EN = 0
Status bit Power_On = 1
or
Event on Pin T1, T2, T3, T4 or T5
Statusbit Power_On = 1
or
Event on Pin T1, T2, T3, T4 or T5
Bit AVCC_EN = 0 and
OFF Command and
Pin PWR_ON = 0 and
Pin T1, T2, T3, T4 and
T5 = 1
Bit AVCC_EN = 0 and OFF Command and
Pin PWR_ON = 0 and
Pin T1, T2, T3, T4 and T5 = 1



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