ATA5812-PLQ Atmel, ATA5812-PLQ Datasheet - Page 41

• Manufacturer Part Number: ATA5812-PLQ
• Description: IC TXRX UHF ASK/FSK 1CH 48-QFN
• Manufacturer: Atmel

Specifications of ATA5812-PLQ

• Frequency: 315MHz
• Data Rate - Maximum: 20kbps
• Modulation Or Protocol: ASK, FSK
• Applications: Access Control, AMR, RKE
• Sensitivity: -116dBm
• Voltage - Supply: 2.4 V ~ 3.6 V or 4.4 V ~ 6 V
• Current - Receiving: 10.5mA
• Current - Transmitting: 10.5mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Memory Size: -
• Other names: ATA5812-PLQTR

9.4
Figure 9-2.
4689F–RKE–08/06
Pin Tn
(Status register)
DVCC, AVCC
Timing Pin Tn, Status Bit STn
N_RESET
VSOUT
CLK
STn
IRQ
Tn
To switch the transceiver from OFF to Idle mode, pin Tn must set to 0 (maximum 0.2
at least T
N_RESET to low and switches on DVCC, AVCC and the power supply for external devices
VSOUT.
If V
sets the status bit STn to 1 and an interrupt is issued (T
After the voltage on pin VSOUT exceeds 2.3V (typically) and the start-up time of the XTO is
elapsed the output clock on pin CLK is available. Because the enabling of pin CLK is asynchro-
nous the first clock cycle may be incomplete. N_RESET is set to high if V
(typically) and the XTO is settled.
1.5V (typ)
Mode
OFF
V
DVCC
Thres_2
exceeds 1.5V (typically) and the XTO is settled, the digital control logic is active and
= 2.38V (typ)
Tn_IRQ
T
Mode
IDLE
Tn_IRQ
(see
Figure
V
Thres_1
9-2). The transceiver recognize the negative edge, sets pin
= 2.3V (typ)
Tn_IRQ
ATA5811/ATA5812
).
VSOUT
exceeds 2.38V
V
VS2
) for
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