T5760-TGQ Atmel, T5760-TGQ Datasheet - Page 24

• Manufacturer Part Number: T5760-TGQ
• Description: IC RX 868MHZ ISM ASK/FSK 20-SOIC
• Manufacturer: Atmel

Specifications of T5760-TGQ

• Frequency: 868MHz
• Sensitivity: -110dBm
• Data Rate - Maximum: 10 kBaud
• Modulation Or Protocol: ASK, FSK
• Applications: General Purpose Data Transmission Systems
• Current - Receiving: 7.8mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -
• Lead Free Status / Rohs Status: Not Compliant
• Other names: T5760-TGQTR

Conservation of the
Register Information
Figure 30. Generation of the Power-on Reset
24
V
POR
Data_out (DATA)
S
T5760/T5761
X
The T5760/T5761 implies an integrated power-on reset and brown-out detection
circuitry to provide a mechanism to preserve the RAM register information.
According to Figure 30, a power-on reset (POR) is generated if the supply voltage V
drops below the threshold voltage V
the configuration registers in that condition. Once V
canceled after the minimum reset period t
voltage of the receiver is turned on.
To indicate that condition, the receiver displays a reset marker (RM) at Pin DATA after a
reset. The RM is represented by the fixed frequency f
canceled via a Low pulse t1 at Pin DATA. The RM implies the following characteristics:
•
•
By means of that mechanism the receiver cannot lose its register information without
communicating that condition via the reset marker RM.
t
Rst
f
cannot be misinterpreted by the connected microcontroller.
If the receiver is set back to polling mode via Pin DATA, RM cannot be canceled by
accident if t1 is applied according to the proposal in the section “Programming the
Configuration Registers”.
RM
is lower than the lowest feasible frequency of a data signal. By this means, RM
V
ThReset
ThReset
. The default parameters are programmed into
Rst
. A POR is also generated when the supply
1 / f
RM
RM
S
at a 50% duty-cycle. RM can be
exceeds V
ThReset
4561B–RKE–10/02
the POR is
S