ata5428 ATMEL Corporation, ata5428 Datasheet - Page 27

• Manufacturer Part Number: ata5428
• Description: Uhf Ask/fsk Transceiver
• Manufacturer: ATMEL Corporation

4841D–WIRE–10/07
Figure 4-2.
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
RF
is exactly the desired radio frequency.
In IDLE mode and during Sleep mode (RX_Polling)
8 pF
S1
the switches S1 and S2 are open.
XTAL1
10 pF
XTO Block Diagram
C
L1
XTO
ATA5423/ATA5425/ATA5428/ATA5429
XTAL2
and the f
C
L2
10 pF
RF
is shown in
8 pF
S2
f
XTO
Baud1
Table 4-1 on page
Amplitude
detector
Divider
Divider
Divider
Baud0
/16
/16
/3
/1
/2
/4
/8
XLim
CLK_ON
(control
register 3)
Table 7-7
CLK
Table 4-1 on page 28
28. To determine the right
f
f
DCLK
XDCLK
&
VSOUT_OK
(from power supply)
and
(to reset logic)
XTO_OK
DVCC_OK
(from power supply)
Table
7-10), the
so that
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