ATA5811-PLQW Atmel, ATA5811-PLQW Datasheet - Page 28

• Manufacturer Part Number: ATA5811-PLQW
• Description: RF Transceiver RF DATA CONTROL Transceiver
• Manufacturer: Atmel

Specifications of ATA5811-PLQW

• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Mounting Style: SMD/SMT
• Package / Case: QFN-48 EP
• Minimum Operating Temperature: - 40 C
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 7mm
• Product Height (mm): 0.9mm
• Product Length (mm): 7mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28
ATA5811/ATA5812
The supply voltage range of the ATA5811/ATA5812 is 2.4V to 3.6V or 4.4V to 6.6V.
Pin VS1 is the supply voltage input for the range 2.4V to 3.6V and is used in battery applications
using a single lithium 3V cell. Pin VS2 is the voltage input for the range 4.4V to 6.6V (2 Battery
Application and Car Applications) in this case the voltage regulator V_REG1 regulates VS1 to
typically 3.25 V. If the voltage regulator is active a blocking capacitor of 2.2 µF has to be con-
nected to VS1.
Pin VAUX is an input for an additional auxiliary voltage supply and can be connected e.g., to an
inductive supply (see
fier or as in the application of
Pin VSINT is the voltage input for the Microcontoller_Interface and must be connected to the
power supply of the microcontroller. The voltage range of V
on page 32
AVCC is the internal operation voltage of the RF transceiver and is feed via the switch
SW_AVCC by VS1. AVCC must be blocked with a 68 nF capacitor (see
Figure 3-1 on page 7
DVCC is the internal operation voltage of the digital control logic and is feed via the switch
SW_DVCC by VS1 or VSOUT. DVCC must be blocked on pin DVCC with 68 nF (see
on page
Pin VSOUT is a power supply output voltage for external devices (e.g., microcontroller) and is
fed via the switch SW_VSOUT by VS1 or via V_REG2 by the a auxiliary voltage supply VAUX.
The voltage regulator V_REG2 regulates VSOUT to typically 3.25V. If the voltage regulator is
active a blocking capacitor of 2.2 µF has to be connected to VSOUT. VSOUT can be switched
off by the VSOUT_EN bit in control register 3 and is then reactivated by conditions found in
ure 7-2 on page
Pin N_RESET is set to low if the voltage V
can be used as a reset signal for a connected microcontroller (see
Figure 7-4 on page
Pin PWR_ON is an input to switch on the transceiver (active high).
Pin T1 to T5 are inputs for push buttons and can also be used to switch on the transceiver
(active low).
For current consumption reasons it is recommended to set T1 to T5 to GND or PWR_ON to VCC
only temporarily. Otherwise an additional current flows.
There are two voltage monitors generating the following signals (see
• DVCC_OK if DVCC > 1.5V typically
• VSOUT_OK if VSOUT > V
• Low_Batt if VSOUT < V
6,
Figure 3-1 on page 7
and
Figure 7-6 on page
29.
32).
and
Figure 7-6 on page
Figure 4-1 on page
Thres2
Figure 3-1 on page 7
Thres1
(2.38V typically)
and
(2.3V typically)
33).
Figure 4-1 on page
33). This input can only be used together with a recti-
VSOUT
8).
at pin VSOUT drops below 2.3V (typically) and
and must otherwise be left open.
8).
VSINT
is 2.4V to 5.25V (see
Figure 7-3 on page 31
Figure 7-1 on page
Figure 2-1 on page
4689F–RKE–08/06
Figure 7-5
Figure 2-1
27):
Fig-
and
6,