參數(shù)資料
型號(hào): AD9835BRU
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理外設(shè)
英文描述: 50 MHz CMOS Complete DDS
中文描述: 1-BIT, DSP-NUM CONTROLLED OSCILLATOR, PDSO16
封裝: TSSOP-16
文件頁數(shù): 2/16頁
文件大?。?/td> 160K
代理商: AD9835BRU
–2–
REV. 0
AD9835–SPECIFICATIONS
1
(V
DD
= +5 V
6
5%; AGND = DGND = 0 V; T
A
= T
MIN
to T
MAX
; REFIN = REFOUT;
R
SET
= 3.9 k
V
; R
LOAD
= 300
V
for IOUT, unless otherwise noted)
Parameter
AD9835B
Units
Test Conditions/Comments
SIGNAL DAC SPECIFICATIONS
Resolution
Update Rate (f
MAX
)
IOUT Full Scale
10
50
4
4.75
1.35
Bits
MSPS nom
mA
nom
mA max
V max
Output Compliance
DC Accuracy
Integral Nonlinearity
Differential Nonlinearity
DDS SPECIFICATIONS
2
Dynamic Specifications
Signal-to-Noise Ratio
Total Harmonic Distortion
Spurious Free Dynamic Range (SFDR)
3
Narrow Band (
±
50 kHz)
Wide Band (
±
2 MHz)
Clock Feedthrough
Wake-Up Time
Power-Down Option
±
1
±
0.5
LSB typ
LSB typ
50
–52
dB min
dBc max
f
MCLK
= 50 MHz, f
OUT
= 1 MHz
f
MCLK
= 50 MHz, f
OUT
= 1 MHz
f
MCLK
= 6.25 MHz, f
OUT
= 2.11 MHz
–72
–50
–60
1
Yes
dBc min
dBc min
dBc typ
ms typ
VOLTAGE REFERENCE
Internal Reference @ +25
°
C
T
MIN
to T
MAX
REFIN Input Impedance
Reference TC
REFOUT Output Impedance
1.21
1.21
±
7%
10
100
300
V typ
V min/max
M
typ
ppm/
°
C typ
typ
LOGIC INPUTS
V
INH
, Input High Voltage
V
INL
, Input Low Voltage
I
INH
, Input Current
C
IN
, Input Capacitance
DVDD – 0.9
0.9
10
10
V
min
V
max
μ
A
max
pF
max
POWER SUPPLIES
AVDD
DVDD
I
AA
I
DD
I
AA
+ I
DD4
Low Power Sleep Mode
f
MCLK
= 50 MHz
4.75/5.25
4.75/5.25
5
2.5 + 0.33/MHz
40
0.35
V
min/V
max
V
min/V
max
mA
max
mA typ
mA
max
mA max
NOTES
1
Operating temperature range is as follows: B Version: –40
°
C to +85
°
C.
2
100% production tested.
3
f
= 6.25 MHz, Frequency Word = 5671C71C HEX, f
= 2.11 MHz.
4
Measured with the digital inputs static and equal to 0 V or DVDD. The AD9835 is tested with a capacitive load of 50 pF. The part can be operated with higher
capacitive loads, but the magnitude of the analog output will be attenuated. See Figure 5.
Specifications subject to change without notice.
IOUT
COMP
REFIN
FS
ADJUST
REFOUT
12
AD9835
ON-BOARD
REFERENCE
10-BIT
DAC
COS
ROM
FULL-SCALE
CONTROL
300
V
50pF
R
SET
3.9k
V
10nF
10nF
AVDD
Figure 1. Test Circuit with Which Specifications Are Tested
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