ATA3741P2-TGQY Atmel, ATA3741P2-TGQY Datasheet - Page 18

• Manufacturer Part Number: ATA3741P2-TGQY
• Description: IC UHF ASK/FSK RECEIVER 20SOIC
• Manufacturer: Atmel

Specifications of ATA3741P2-TGQY

• Frequency: 300MHz ~ 450MHz
• Sensitivity: -108dBm
• Data Rate - Maximum: 10 kBaud
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, TPM, Security Systems
• Current - Receiving: 7mA
• 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)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Other names: ATA3741P2-TGQYTR

Table 5-2.
Table 5-3.
Table 5-4.
OFF Command
OPMODE Register
LIMIT Register
18
Bit1 Bit2
(Default)
(Default)
1
0
0
0
0
BitChk1
Baud1
1
1
0
0
0
0
1
1
0
0
1
1
ATA3741
Lim_min5 Lim_min4 Lim_min3 Lim_min2 Lim_min1 Lim_min0 Lim_max5 Lim_max4 Lim_max3 Lim_max2 Lim_max1 Lim_max0
Baud1
Bit2
BR_Range
0
0
Effect of the Configuration Words within the Registers
Effect of the Configuration Word BR_Range
Effect of the Configuration Word N
BR_Range
N
Bitcheck
Baud0
Bit4
0
0
BitChk0
Baud0
Table 5-3
The default configuration is labeled for each word.
BR_Range sets the appropriate baud rate range. At the same time, it defines XLim. XLim is
used to define the bit check limits T
POUT can be used to control the sensitivity of the receiver. In that application, POUT is set to “1”
to reduce the sensitivity. This implies that the receiver operates with full sensitivity after a POR.
0
1
0
1
0
1
0
1
BitChk1
Bit5
1
1
Lim_min
N
Bitcheck
through
BitChk0
Baud Rate Range/Extension Factor for Bit Check Limits (XLim)
BR_Range0 (Application USA/Europe: BR_Range0 = 1.0 kBaud to 1.8 kBaud) (Default)
XLim = 8 (Default)
BR_Range1 (Application USA/Europe: BR_Range1 = 1.8 kBaud to 3.2 kBaud)
XLim = 4
BR_Range2 (Application USA/Europe: BR_Range2 = 3.2 kBaud to 5.6 kBaud)
XLim = 2
BR_Range3 (Application USA/Europe: BR_Range3 = 5.6 kBaud to 10 kBaud)
XLim = 1
Bit6
0
1
Table 5-9 on page 20
POUT
V
Bitcheck
Bit7
POUT
0
1
Sleep4
Bit8
0
0
Lim_min
Number of Bits to be Checked
Sleep3
illustrate the effect of the individual configuration words.
Bit9
and T
1
0
Lim_max
6 (Default)
Sleep2
Bit10
Sleep
0
1
0
3
9
as shown in
Sleep1
Bit11
1
1
Lim_max
Table
Sleep0
Bit12
1
0
5-3.
X
Bit13
Sleep Std
0
0
4899B–RKE–10/06
X
Sleep
X
Sleep Temp
Bit14
0
0