RF2053
PLL1x0 (08h) - VCO, LO Divider and Calibration Select
#
15
14
13
12
11
10
9
Bit Name
P1_VCOSEL
Default
Function
0
1
1
1
0
0
0
1
0
0
0
1
1
1
1
1
7
Path 1 VCO band select: 00=VCO1, 01=VCO2, 10=VCO3, 11=Reserved
Always set to 10 for VCO3.
P1_CT_EN
P1_KV_EN
P1_LODIV
Path 1 VCO coarse tune: 00=disabled, 11=enabled
Set to 00 to disable VCO coarse tune.
1
1
F
Path 1 VCO tuning gain calibration: 00=disabled, 11=enabled
Set to 00 to disable calibration.
Path 1 local oscillator divider: 00=divide by 1, 01=divide by 2, 10=divide by 4, 11=reserved
8
7
6
5
P1_CP_DEF
Charge pump current setting
If P1_KV_EN=11 this value sets charge pump current during KV compensation only
4
3
2
1
0
PLL1x1 (09h) - MSB of Fractional Divider Ratio
#
15
14
13
12
11
10
9
Bit Name
P1_NUM_MSB
Default
Function
0
1
1
0
0
0
1
0
0
1
1
1
0
1
1
0
6
Path 1 VCO divider numerator value, most significant 16 bits
2
7
6
8
7
6
5
4
3
2
1
0
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DS140110
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