CC400 Chipcon, CC400 Datasheet - Page 13

• Manufacturer Part Number: CC400
• Description: Single Chip High Performance RF Reansceiver
• Manufacturer: Chipcon

Output power
The output power is controlled through
several parameters in the configuration
registers. Table 4 shows recommended
Input / Output Matching
Four
combined with the internal T/R switch
circuitry ensures match in both RX and TX
mode. The matching network for 433.92
MHz is shown in figure 8. The component
values may have to be optimised to
Chipcon AS
Output power
passive
10
11
12
13
14
-5
-4
-3
-2
-1
Table 4. Output power settings and typical current consumption.
0
1
2
3
4
5
6
7
8
9
TO ANTENNA
external
SmartRF
Class
Figure 8. Input/output matching network.
AB
AB
AB
AB
C
C
C
C
C
C
C
A
B
B
B
B
B
B
B
B
f = 433.92 MHz
C51=220 pF
C61=12 pF
L51=39 nH
L61=6.8 nH
TM
components
CC400
AVDD
C61
E9:8
00
01
01
01
01
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
L61
Datasheet (rev. 3.1) 2003-11-12
F1:0
00
00
01
01
01
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
Register
L51
SmartRF
settings for the different output powers
and
consumption.
include
components for other frequencies can be
found using the configuration software.
See
“Matching
details.
C8,A7:6,D12:11
C51
also
corresponding
01011
00100
00101
00110
00111
00011
00100
00101
00110
00111
01000
01001
01010
01001
01010
01100
01111
10001
10101
11011
RF_OUT
layout
RF_IN
CC400
Application
parasitics.
CC400
®
CC900”
Current (mA)
typical
CC400
Note
33
22
26
28
29
29
31
32
34
35
37
39
40
44
46
49
54
57
62
69
Page 13 of 27
for
Matching
current
AN013
more