AD9772A-EBZ Analog Devices Inc, AD9772A-EBZ Datasheet - Page 8
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AD9772A-EBZ
Manufacturer Part Number
AD9772A-EBZ
Description
14Bit 160 MSPS TxDAC+ W/2X Interpolation
Manufacturer
Analog Devices Inc
Series
TxDAC+®r
Datasheet
1.AD9772AASTZ.pdf
(40 pages)
Specifications of AD9772A-EBZ
Number Of Dac's
1
Number Of Bits
14
Outputs And Type
1, Differential
Sampling Rate (per Second)
160M
Data Interface
Parallel
Settling Time
11ns
Dac Type
Current
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
AD9772A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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