AD9148 Analog Devices, AD9148 Datasheet - Page 32

• Manufacturer Part Number: AD9148
• Manufacturer: Analog Devices

Specifications of AD9148

• Resolution (bits): 16bit
• Dac Update Rate: 1GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: LVDS,Par

AD9148
Register Name
HB2 Control
HB3 Control
Chip ID
Addr
(Hex)
1D
1E
1F
Bit
0
7
3:1
0
7:0
Name
HB2[2:0]
Bypass HB2
Bypass digital gain
and phase
adjustment
HB3[2:0]
Bypass HB3
Chip ID
Rev. B | Page 32 of 72
Function
Modulation mode for second stage interpolation filter
(f
000 = input signal modulated by dc. Filter pass band is
from −0.1 to +0.1 of f
001 = input signal modulated by dc. Filter pass band is
from 0.025 to 0.225 of f
010 = input signal modulated by f
from 0.15 to 0.35 of f
011 = input signal modulated by f
from 0.275 to 0.475 of f
100 = input signal modulated by f
from 0.4 to 0.6 of f
101 = input signal modulated by f
from 0.525 to 0.725 of f
110 = input signal modulated by 3 f
from 0.65 to 0.85 of fHB2.
111 = input signal modulated by 3 f
from 0.775 to 0.975 of f
Second stage interpolation filter bypass.
1 = bypass digital gain and phase compensation.
Modulation mode for third stage interpolation filter
(f
000 = input signal modulated by dc. Filter pass band is
from −0.1 to +0.1 of f
001 = input signal modulated by dc. Filter pass band is
from 0.025 to 0.225 of f
010 = input signal modulated by f
from 0.15 to 0.35 of f
011 = input signal modulated by f
from 0.275 to 0.475 of f
100 = input signal modulated by f
from 0.4 to 0.6 of f
101: Input signal modulated by f
from 0.525 to 0.725 of f
110 = input signal modulated by 3 f
from 0.65 to 0.85 of f
111 = input signal modulated by 3 f
from 0.775 to 0.975 of f
Third stage interpolation filter bypass.
Chip ID readback.
HB2
HB3
= 2 × f
= 2 × f
IN2
IN3
).
).
HB2
HB3
HB2
HB3
HB3
.
.
HB2
HB3
HB2
.
HB2
HB2
HB2
HB3
.
HB3
HB3
.
HB3
.
.
.
.
.
.
.
.
.
.
HB3
HB2
HB2
HB2
HB2
HB3
HB3
HB3
/2. Filter pass band is
HB2
HB2
HB3
HB3
/4. Filter pass band is
/4. Filter pass band is
/2. Filter pass band is
/2. Filter pass band is
/4. Filter pass band is
/4. Filter pass band is
/2. Filter pass band is
/4. Filter pass band is
/4. Filter pass band is
/4. Filter pass band is
/4. Filter pass band is
Data Sheet
Default
000
0
1
000
1
07