ATA5811-PLQX Atmel, ATA5811-PLQX Datasheet - Page 24

• Manufacturer Part Number: ATA5811-PLQX
• Manufacturer: Atmel

Specifications of ATA5811-PLQX

• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 7mm
• Product Height (mm): 0.9mm
• Product Length (mm): 7mm
• Lead Free Status / Rohs Status: Compliant

Figure 19. XTO Block Diagram
Table 12. Calculation of f
24
Frequency (MHz)
433.92
868.3
315.0
ATA5811/ATA5812 [Preliminary]
8 pF
S1
In IDLE mode and during Sleep mode (RX_Polling) the
switches S1 and S2 are open.
433_N868
XTAL1
AVCC
AVCC
Pin 6
GND
10 pF
RF
C
L1
To find the right values used in the control registers 2 and 3 (see Table 20 on page 35
and Table 23 on page 36) the relationship between f
Table 12. To 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 cal-
culated according to Table 12 so that f
.
CREG1
XTAL2
Bit(4)
C
FS
L2
0
0
1
10 pF
f
XTO
13.25311
13.41191
12.73193
(MHz)
8 pF
S2
f
f
f
XTO
XTO
XTO
f
XTO
Baud1
f
RF
64 5
24 5
32 5
Amplitude
= f
Detector
Divider
Divider
Divider
Baud0
/16
TX_ASK
/16
/1
/8
/2
/4
/3
+
+
+
RF
FREQ 20,5
----------------------------------
FREQ 20,5
--------------------------------- -
FREQ 20,5
--------------------------------- -
XLim
is exactly the desired radio frequency
16384
16384
16384
= f
(Control
CLK_ON
Register 3)
RX
+
+
+
CLK
f
f
DCLK
XDCLK
&
VSOUT_OK
(from power supply)
f
f
f
RF
RF
RF
XTO
f
- 16.17 kHz
- 16.37 kHz
- 15.54 kHz
TX_FSK_L
(to Reset Logic)
DVCC_OK
(from power supply)
and the f
XTO_OK
RF
f
f
f
RF
RF
RF
4689B–RKE–04/04
is shown in
f
+ 16.17 kHz
+ 16.37 kHz
+ 15.54 kHz
TX_FSK_H