ATA5812-PLQ Atmel, ATA5812-PLQ Datasheet - Page 46

• 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

10. Transceiver Configuration
10.1
Figure 10-1. Read TX/RX Data Buffer
10.2
Figure 10-2. Write TX/RX Data Buffer
46
Command: Read TX/RX Data Buffer
Command: Write TX/RX Data Buffer
ATA5811/ATA5812
SDO_TMDO
SDO_TMDO
SDI_TMDI
SDI_TMDI
SCK
SCK
CS
CS
Command: Read TX/RX Data Buffer
Command: Write TX/RX Data Buffer
MSB
Nr. Bytes in the TX/RX Data Buffer
MSB
Nr. Bytes in the TX/RX Data Buffer
The configuration of the transceiver takes place via a 4-wire serial interface (CS, SCK,
SDI_TMDI, SDO_TMDO) and is organized in 8-bit units. The configuration is initiated with a 8-bit
command. While shifting the command into pin SDI_TMDI, the number of bytes in the TX/RX
data buffer are available on pin SDO_TMDO. The read and write commands are followed by one
or more 8-bit data units. Each 8-bit data transmission begins with the MSB. The serial interface
is in reset state if the level on pin CS = Low.
During a RX operation the user can read the received bytes in the TX/RX data buffer
successively.
During a TX operation the user can write the bytes in the TX/RX data buffer successively. An
echo of the command and the TX data bytes are provided for the microcontroller on pin
SDO_TMDO.
LSB
LSB
MSB
MSB
Write TX/RX Data Buffer
RX Data Byte 1
TX Data Byte 1
X
LSB
LSB
MSB
MSB
RX Data Byte 2
TX Data Byte 2
TX Data Byte 1
X
LSB
LSB
4689F–RKE–08/06