T5760-TGQ Atmel, T5760-TGQ Datasheet - Page 26

• 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

Data Interface
26
T5760/T5761
Bit 15 is followed by the equivalent time window t9. During this window, the equivalence
acknowledge pulse t8 (E_Ack) occurs if the just programmed mode word is equivalent to
the mode word that was already stored in that register. E_Ack should be used to verify
that the mode word was correctly transferred to the register. The register must be pro-
grammed twice in that case.
Programming of a register is possible both in sleep-mode and in active-mode of the
receiver.
During programming, the LNA, LO, lowpass filter IF-amplifier and the FSK/ASK
Manchester demodulator are disabled.
The programming start pulse t1 initiates the programming of the configuration registers.
If bit 1 is set to ’1’, it represents the OFF command to set the receiver back to polling
mode at the same time. For the length of the programming start pulse t1, the following
convention should be considered:
•
Programming respectively OFF command is initiated if the receiver is not in reset mode.
If the receiver is in reset mode, programming respectively Off command is not initiated
and the reset marker RM is still present at Pin DATA.
This period is generally used to switch the receiver to polling mode or to start the
programming of a register. In reset condition, RM is not cancelled by accident.
•
Programming respectively OFF command is initiated in any case. The registers
OPMODE and LIMIT are set to the default values. RM is cancelled if present.
This period is used if the connected microcontroller detected RM. If the receiver oper-
ates in default mode, this time period for t1 can generally be used.
Note that the capacitive load at Pin DATA is limited.
The data interface (see Figure 32) is designed for automotive requirements. It can be
connected via the pull-up resistor R
The applicable pull-up resistor R
the selected BR_range (see Table 12).
Table 12. Applicable R
C
t1(min) < t1 < 5632 T
t1(min) is the minimum specified value for the relevant BR_Range
t1 > 7936 x T
C
L
L
£ 100pF
£ 1nF
-
Clk
pup
Clk
:
BR_range
B0
B1
B2
B3
B0
B1
B2
B3
pup
pup
depends on the load capacity C
up to 20 V and is short-circuit-protected.
1.6 k W to 470 k W
1.6 k W to 220 k W
1.6 k W to 120 k W
Applicable R
1.6 k W to 5.6 k W
1.6 k W to 47 k W
1.6 k W to 22 k W
1.6 k W to 12 k W
1.6 k W to 56 k W
L
at Pin DATA and
pup
4561B–RKE–10/02