ATA5423 ATMEL Corporation, ATA5423 Datasheet - Page 27

• Manufacturer Part Number: ATA5423
• Manufacturer: ATMEL Corporation

Figure 4-2.
4841A–RKE–02/05
XTO Block Diagram
8 pF
S1
In IDLE Mode and during Sleep Mode (RX_Polling) the
switches S1 and S2 are open.
XTAL1
To find the right values used in control registers 2 and 3 (see
relationship between f
content, the frequency at pin CLK as well as the output frequency at RF_OUT in ASK mode can
be measured, then the FREQ value can be calculated according to
f
10 pF
RF
is exactly the desired radio frequency.
C
L1
C
XTAL2
L2
10 pF
XTO
and the f
8 pF
S2
RF
ATA5423/25/28/29 [Preliminary]
f
XTO
is shown in
Baud1
Amplitude
Detector
Divider
Divider
Divider
Baud0
/16
/16
/3
/1
/2
/4
/8
Table 4-1 on page
XLim
Register 3)
CLK_ON
(Control
CLK
f
f
DCLK
XDCLK
Table 7-7
&
(from Power
VSOUT_OK
Supply)
Table 4-1 on page 28
28. To determine the right
(from Power
(to Reset Logic)
DVCC_OK
Supply)
XTO_OK
and
Table
7-10), the
so that
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