
Micrel
MICRF405
April 2006
19
M9999-041906
(408) 955-1690
Power level
(PAx)
915MHz 434MHz 315MHz
P
out
(dBm)
I
VDD
(mA)
P
out
(dBm)
I
VDD
(mA)
P
out
(dBm)
I
VDD
(mA)
7 10.0 17.5 10.3 16.8 10.5 16.4
6 5.8 13.2 7.0 13.0 8.6 13.3
5 3.1 11.5 4.3 11.6 5.7 11.5
4 0.5 10.5 1.7 10.6 2.8 10.2
3 -1.9 9.9 -1.1 10.0 -0.1 9.3
2 -4.2 9.5 -3.8 9.5 -3.2 8.6
1 -6.7 9.1 -6.8 9.2 -6.5 8.2
0 -9.2 8.9 -9.8 9.0 -9.7 7.9
PA
off
5.4 6.1 5.4
Table 11. Output Power and Current Consumption vs. Power Level Setting (PA2..PA1) for 315, 434 and 915MHz.
Frequency Synthesizer
Adr
Data
A6..A0
D7
D6 D5 D4 D3 D2 D1 D0
0000001
-
-
A0_5=0 A0_4=0 A0_3=1 A0_2=1 A0_1=1 A0_0=0
0000010 -
-
-
-
N0_11=0
N0_10=0
N0_9=0
N0_8=0
0000011
N0_7=0
N0_6=1 N0_5=1 N0_4=1 N0_3=0 N0_2=0 N0_1=1 N0_0=1
0000100 -
-
-
-
M0_11=0
M0_10=0
M0_9=0
M0_8=0
0000101
M0_7=0
M0_6=0 M0_5=1 M0_4=0 M0_3=0 M0_2=0 M0_1=0 M0_0=1
0000110
-
-
A1_5=0 A1_4=1 A1_3=1 A1_2=1 A1_1=1 A1_0=1
0000111 -
-
-
-
N1_11=0
N1_10=0
N1_9=0
N1_8=0
0001000
N1_7=0
N1_6=1 N1_5=1 N1_4=0 N1_3=1 N1_2=1 N1_1=1 N1_0=1
0001001 -
-
-
-
M1_11=0
M1_10=0
M1_9=0
M1_8=0
0001010
M1_7=0
M1_6=0 M1_5=1 M1_4=0 M1_3=0 M1_2=0 M1_1=0 M1_0=0
0010000 ‘0’ Prescaler_Sel=0 FSKClk_K5=1 FSKClk_K4=1 FSKClk_K3=0 FSKClk_K2=1 FSKClk_K1=0 FSKClk_K0=0
Figure 8. PLL Block Diagram.