U2739M-B Datasheet, PDF (43/69 Pages) ATMEL Corporation – DAB One-Chip Channel- and Source Decoder

U2739M-B
8.2 ’Set Configuration’ Commands
8.2.1 Set Global Configuration
Command Settings Overview:
Address Mode
7
6
5
4
3
2
0
1
1
0
1
1
DAB
U2739M-B
D Set channel decoder AGC values
D Set channel decoder global parameters
Command
sequence:
1
0
1
0
Write Command
$6G
Data Mode
7
6
5
4
3
2
1
0
0
0
1
0
0
0
0
0
$00
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
AGCV 0
dB3
DSC
PSC(10..8)
$XX
PSC(7..0)
$XX
CDPV IFM
FSYS
SAW ADCF
0
$XX
Command Parameters:
Parameter
AGCV
DSC(1..0)
PSC(10..0)
CDPV
IFM
FSYS
SAW
ADCF
Meaning
Description
AGC values valid
0: Following DSC/PSC values ignored
1: Following DSC/PSC values valid
Input data scale
n: Scale value
Programmable (I)FFT scale
n: Scale value
Channel decoder parameters valid 0:
1:
Following global parameters ignored
Following global parameters valid
IF input signal mode
0: Common IF representation
1: Reverse IF representation
Frame synchronization sensitivity
level
00: Very high
01: High
10: Low
11: Very low
SAW filter equalization switch
0: Equalization off
1: Equalization on
ADC format
0: Binary ADC input format
1: 2’s complement ADC input format
Defaults
1
01
1
0
Rev. A1, 22-May-01
43 (69)