CXD3018Q/R
$3F (preset: $3F 00 10)
D15 D14 D13 D12 D11 D10 D9
D8
D7
0
D6
D5
D4
1
D3
D2
0
D1
D0
0
AGG4 XT4D XT2D AGSD DRR2 DRR1 DRR0
ASFG FTQ
SRO1
AGHF ASOT
AGG4:
This varies the amplitude of the internally generated sine wave using the AGGF and AGGT
commands during AGC.
When AGG4 = 0, the default is used. When AGG4 = 1, the setting is as shown in the table below.
Sin wave amplitude
See $37 for AGGF and AGGT.
The presets are AGG4 = 0,
AGGF = 1 and AGGT = 1.
AGG4 AGGF AGGT
FE input
conversion
TE input
conversion
0
1
—
—
0
1/32 × VDD/2
—
1/16 × VDD/2
—
0
1
—
—
0
—
—
1/16 × VDD/2
1/8 × VDD/2
1
0
1/64 × VDD/2
0
1
1/32 × VDD/2
1
0
1/16 × VDD/2
1
1
1/8 × VDD/2
: preset, —: don't care
XT4D, XT2D: MCK (digital servo master clock) frequency division ratio setting
This command forcibly sets the frequency division ratio to 1/4, 1/2 or 1/1 when MCK is generated.
See the description of $3E for XT1D. Also, see "§5-2. Digital Servo Block Master Clock (MCK)".
XT1D
XT2D
XT4D
Frequency division ratio
0
1
0
0
0
—
1
0
—
—
1
According to XTSL
1/1
1/2
0
1/4
: preset, —: don't care
AGSD:
This command is used to determine whether the result of the tracking auto gain adjustment is
reflected on the sled. See §5-6 for the auto gain adjustment.
When AGSD = 0, the result of the tracking auto gain adjustment is reflected on the sled.
In other words, the coefficient K07 = K23. (preset)
When AGSD = 1, the result of the tracking auto gain adjustment is not reflected on the sled.
In other words, the coefficient K07 is not affected by K23.
– 120 –
ETC [ ETC ]
