ATA5760N-TGQY Atmel, ATA5760N-TGQY Datasheet - Page 28

• Manufacturer Part Number: ATA5760N-TGQY
• Description: RF Receiver ASK/FSK Receiver 868 MHz
• Manufacturer: Atmel
• Type: UHF ASK/FSK Receiversr

Specifications of ATA5760N-TGQY

• Package / Case: SOIC-20
• Operating Frequency: 928 MHz
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13. Programming the Configuration Register
Figure 13-1. Timing of the Register Programming
28
Serial bi-directional
data line
ATA5760/ATA5761
Out1
(microcontroller)
Data_out (DATA)
IC_ACTIVE
X
X
Figure 13-2. Data Interface
The configuration registers are programmed serially via the bi-directional data line according to
Figure 13-1
To start programming, the serial data line DATA is pulled to Low for the time period t1 by the
microcontroller. When DATA has been released, the receiver becomes the master device. When
the programming delay period t2 has elapsed, it emits 15 subsequent synchronization pulses
with the pulse length t3. After each of these pulses, a programming window occurs. The delay
until the program window starts is determined by t4, the duration is defined by t5. Within the pro-
gramming window, the individual bits are set. If the microcontroller pulls down pin DATA for the
time period t7 during t5, the according bit is set to ’0’. If no programming pulse t7 is issued, this
bit is set to ’1’. All 15 bits are subsequently programmed this way. The time frame to program a
bit is defined by t6.
Receiving
mode
Data_In
Data_out
V
S
= 4.5 V to 5.5 V
t1
0 V/5 V
and
t2
Figure
Interface
t3
Input -
(Start bit)
t4
Bit 1
("0")
13-2.
t5
t7
t6
ATA5760/
ATA5761
0 ... 20 V
Programming frame
(Register-
Bit 2
("1")
select)
I
D
DATA
Serial bi-directional data line
V
R
C
pup
X
L
= 5 V to 20 V
(Poll8)
Bit 14
("0")
(Stop bit)
I/O
Bit 15
("0")
Microcontroller
t8
t9
Sleep
mode
T
Out1 (microcontroller )
Sleep
Start-up
4896D–RKE–08/08
T
mode
Start-up