ATA5812-PLQW80 Atmel, ATA5812-PLQW80 Datasheet - Page 25

• Manufacturer Part Number: ATA5812-PLQW80
• Description: RF Transceiver RF Data Control Transceiver
• Manufacturer: Atmel

Specifications of ATA5812-PLQW80

• Wireless Frequency: 226 KHz
• Interface Type: 4-Wire SPI
• Noise Figure: 7 dB
• Output Power: 10 dBm
• Operating Supply Voltage: 2.4 V to 5.25 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-48
• Maximum Data Rate: 20 Kbps
• Minimum Operating Temperature: - 40 C
• Modulation: ASK, FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 6-2.
Table 6-1.
4689F–RKE–08/06
Frequency (MHz)
433.92
868.3
315.0
XTO Block Diagram
Calculation of f
In IDLE mode and during Sleep mode (RX_Polling)
8 pF
S1
433_N868
AVCC
AVCC
Pin 6
GND
XTAL1
the switches S1 and S2 are open.
10 pF
To find the right values used in the control registers 2 and 3 (see
Table 9-10 on page
determine the right content the frequency at pin CLK as well as the output frequency at RF_OUT
in ASK mode can be measured, than the FREQ value can be calculated according to
so that f
RF
C
L1
RF
CREG1
Bit(4)
is exactly the desired radio frequency
XTAL2
FS
0
0
1
C
L2
10 pF
f
36) the relationship between f
13.25311
13.41191
12.73193
XTO
(MHz)
8 pF
S2
f
XTO
f
f
f
XTO
XTO
XTO
Baud1
f
Amplitude
RF
detector
Divider
Divider
Divider
Baud0
32 5
64 5
24 5
/16
/16
= f
/3
/1
/2
/4
/8
TX_ASK
XLim
+
+
+
FREQ
--------------------------------- -
FREQ
--------------------------------- -
FREQ
--------------------------------- -
CLK_ON
(control
register 3)
= f
16384
16384
16384
XTO
RX
+
+
+
CLK
20,5
20,5
20,5
and the f
f
f
DCLK
XDCLK
&
VSOUT_OK
(from power supply)
ATA5811/ATA5812
(to reset logic)
f
f
f
RF
RF
RF
XTO_OK
DVCC_OK
(from power supply)
RF
f
– 16.17 kHz
– 16.37 kHz
– 15.54 kHz
TX_FSK_L
Table 9-7 on page 36
is shown in
f
f
f
RF
RF
RF
Table
f
+ 16.17 kHz
+ 16.37 kHz
+ 15.54 kHz
TX_FSK_H
Table 6-1
6-1. To
and
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