AD9957 Analog Devices, AD9957 Datasheet - Page 3

• Manufacturer Part Number: AD9957
• Description: 1 GSPS Quadrature Digital Upconverter
• Manufacturer: Analog Devices

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DataSheet
4
PRELIMINARY TECHNICAL DATA
ELECTRICAL SPECIFICATIONS
Table 1. Unless otherwise noted, AVDD, DVDD = 1.8V ± 5%, DAC_VDD, DVDD_I/O = 3.3 V ± 5%, R
Reference Clock Frequency = 25 MHz. 40x REFLCK multiplier engaged.
Parameter
REF CLOCK INPUT CHARACTERISTICS
Frequency Range
REFCLK Multiplier Disabled, Divider Disabled
REFCLK Multiplier Disabled, Divider Enabled
REFCLK Multiplier Enabled at 8×
REFCLK Multiplier Enabled at 64×
REFCLK Multiplier Enabled at 127×
XTAL frequency on REFCLK inputs
Input Capacitance
Input Impedance
Duty Cycle
Duty Cycle with REFCLK Multiplier Enabled
REFCLK Input Voltage Swing
REFCLK Input Power
DAC OUTPUT CHARACTERISTICS
Full Scale Output Current
Gain Error
Output Offset
Differential Nonlinearity
Integral Nonlinearity
Output Capacitance
Residual Phase Noise @ 1 kHz Offset, 400 MHz A
REFCLK Multiplier Disabled
REFCLK Multiplier Enabled @ 127×
REFCLK Multiplier Enabled @ 64×
REFCLK Multiplier Enabled @ 8×
AC Voltage Compliance Range
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
fout = 50 MHz
fout = 104 MHz
fout = 209 MHz
fout = 315 Mhz
fout = 403 MHz
TWO TONE INTERMODULATION DISTORTION (IMD)
fout = fout + 1.25 MHz
fout = 50 MHz
fout = 104 MHz
fout = 209 MHz
fout = 315 Mhz
fout = 403 MHz
NOISE SPECTRAL DENSITY (NSD) Single Tone
fout = 50 MHz
fout = 104 MHz
fout = 209 MHz
fout = 315 Mhz
fout = 403 MHz
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1
OUT
Rev. PrF | Page 3 of 38
Min
1
52.5
6.5
3.3
20
35
100
–15
10
–10
-0.5V
Typ
3
1.5
50
0
20
1
2
5
–123
TBD
–105
–115
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Max
1000
125
35
7.9
30
1000
+3
30
+10
0.6
0.5V
2000
65
Unit
MHz
MHz
MHz
MHz
MHz
MHz
pF
kΩ
%
%
mV pk-pk
dBm
mA
%FS
μA
LSB
LSB
pF
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
V
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm / Hz
dBm / Hz
dBm / Hz
dBm / Hz
dBm / Hz
SET
= 10kΩ, External
AD9957