CC2400 Chipcon AS, CC2400 Datasheet - Page 46

• Manufacturer Part Number: CC2400
• Description: 2.4 GHz RF Transceiver
• Manufacturer: Chipcon AS

VCO
The VCO is completely integrated and
operates at 4800 – 4966 MHz. The VCO
frequency is divided by 2 to generate
frequencies in the desired band (2400-
2483 MHz).
VCO Self-Calibration
The VCO's characteristics will vary with
temperature, changes in supply voltages,
and the desired operating frequency. In
order to ensure reliable operation the
Output Power Programming
The RF output power from the device is
programmable and is controlled by the
FREND.PA_LEVEL[2:0] register. Table
10 is showing the output power. The
typical current consumption is also shown.
The power amplifier (PA) can be operated
in differential or single ended mode. In
Chipcon AS
Table 10. Output power settings and typical current consumption
SmartRF
PA_LEVEL[2:0]
®
CC2400 PRELIMINARY Datasheet (rev. 1.1), 2003-10-02
[binary]
000
001
010
011
100
101
110
111
Output power
[dBm]
-7.5
-5.2
-3.4
-1.7
-25
-15
-10
0
RF frequency 2.45 GHz
SmartRF
The
FSDIV.FREQ[9:0] as follows :
VCO’s bias current and tuning range are
automatically calibrated every time the RX
mode or TX mode is enabled.
single ended mode only the RF_P output
is used for the PA. The mode is controlled
by FREND.PA_DIFF. For highest possible
output power use the differential mode by
setting
f
VCO
=
VCO
2
⋅
consumption,
(
PA_DIFF=1
2047
typ. [mA]
Current
11.5
12.6
16.7
17.8
11
14
15
19
frequency
+
FREQ
®
CC2400
[
9
0 :
(reset
is
]
)
related
Page 46 of 73
value).
to