RFM22 Datasheet, PDF (124/150 Pages) –

RFM22
Register 5Ch. Synthesizer Test
Bit
Name
Type
D7
dsmdt
R/w
D6
vcotype
R
D5
enoloop
R/w
D4
dsmod
R/w
D3
D2
dsorder[1:0]
R/w
Reset value = 0x001110
Bit
Name
Function
Enable DSM Dithering.
7
dsmdt
If low, dithering is disabled.
VCO Type.
6
vcotype
0: basic, constant K
1: single varactor, changing K
5
enoloop
Open Loop Mode Enable.
Delta-Sigma Modulus.
4
dsmod
0: 64 000
1: 65 536
Delta-Sigma Order.
00: 0 order
3:2
dsorder[1:0] 01: 1^st order
10: 2^nd order
11: Mash 111
1
dsrstmode Delta-Sigma Reset Mode.
0
dsrst
Delta-Sigma Reset.
D1
dsrstmode
R/w
D0
dsrst
R/w
124
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com