AD9772A Analog Devices, AD9772A Datasheet - Page 8

• Manufacturer Part Number: AD9772A
• Manufacturer: Analog Devices

Specifications of AD9772A

• Resolution (bits): 14bit
• Dac Update Rate: 160MSPS
• Dac Settling Time: 11ns
• Max Pos Supply (v): +3.6V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

AD9772A
DIGITAL FILTER SPECIFICATIONS
T
50 Ω doubly terminated, unless otherwise noted.
Table 4.
Parameter
MAXIMUM INPUT DATA RATE (f
DIGITAL FILTER CHARACTERISTICS
LINEAR PHASE (FIR IMPLEMENTATION)
STOP BAND REJECTION
GROUP DELAY
IMPULSE RESPONSE DURATION
1
2
Excludes sin(x)/x characteristic of DAC.
Defined as the number of data clock cycles between impulse input and peak of output response.
MIN
Pass-Bandwidth
Pass-Bandwidth: 0.01 dB
Pass-Bandwidth: 0.1 dB
Pass-Bandwidth: −3 dB
0.606 f
−40 dB
−60 dB
to T
–0.2
–0.4
1.0
0.8
0.6
0.4
0.2
–100
–120
–140
–20
–40
–60
–80
0
Figure 4. FIR Filter Frequency Response—Baseband Mode
CLOCK
MAX
0
Figure 5. FIR Filter Impulse Response—Baseband Mode
0
0
, AVDD = 3.3 V, CLKVDD = 3.3 V, PLLVDD = 0 V, DVDD = 3.3 V, I
to 1.394 f
2
5
0. 1
1
10
: 0.005 dB
0. 2
CLOCK
FREQUENCY (DC TO
0.3
15
TIME (Samples)
0. 4
20
DATA
)
0.5
25
0.6
f
DATA
30
)
0.7
35
0.8
40
0.9
45
1.0
Rev. C | Page 8 of 40
Table 5. Integer Filter Coefficients for Interpolation Filter
(43-Tap Half-Band FIR Filter)
Lower
Coefficient
H(1)
H(2)
H(3)
H(4)
H(5)
H(6)
H(7)
H(8)
H(9)
H(10)
H(11)
H(12)
H(13)
H(14)
H(15)
H(16)
H(17)
H(18)
H(19)
H(20)
H(21)
H(22)
Min
150
OUTFS
= 20 mA, differential transformer-coupled output,
Typ
0.401
0.404
0.422
0.479
73
11
36
42
Upper
Coefficient
H(43)
H(42)
H(41)
H(40)
H(39)
H(38)
H(37)
H(36)
H(35)
H(34)
H(33)
H(32)
H(31)
H(30)
H(29)
H(28)
H(27)
H(26)
H(25)
H(24)
H(23)
Max
Unit
MSPS
f
f
f
f
dB
Input clocks
Input clocks
Input clocks
OUT
OUT
OUT
OUT
/f
/f
/f
/f
DATA
DATA
DATA
DATA
Integer
Value
10
0
−31
0
69
0
−138
0
248
0
−419
0
678
0
−1083
0
1776
0
−3282
0
10,364
16,384