U2739M-B Datasheet, PDF (47/69 Pages) ATMEL Corporation – DAB One-Chip Channel- and Source Decoder

U2739M-B
8.2.4 Set XO Configuration
Command Settings Overview:
D Set XO control parameters
Address Mode
7
6
5
4
3
2
1
0
0
1
1
0
1
1
1
0
DAB
U2739M-B
Write Command
Command
sequence:
$6E
Data Mode
7
6
5
4
3
2
1
0
0
0
1
0
0
0
1
1
$23
Address Mode
7
6
5
4
3
2
1
0
0
1
1
0
1
1
0
0
DAB
U2739M-B
Write Command
$6C
Data Mode
7
6
5
4
3
2
1
0
XO_Rough line
$XX
XO_Fine line
$XX
XOAVG
0
$XX
Command Parameters:
Parameter
XO_B0(15..0)
XO_B1(15..0)
XO_B2(15..0)
XO_A1(15..0)
XO_A2(15..0)
XOAVG(4..0)
Meaning
IIR filter coefficients
XO control average
Description
Coefficients for 2^nd order IIR filter used for XO
control
n: XO control average over n+1 values
Defaults
0.25
0.5
0.25
0
0
0
Rev. A1, 22-May-01
47 (69)