AD9957 Analog Devices, AD9957 Datasheet - Page 5

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

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DataSheet
4
PRELIMINARY TECHNICAL DATA
Parameter
CMOS LOGIC OUTPUTS (1 mA Load)
Logic 1 Voltage
Logic 0 Voltage
XTAL OUTPUT BUFFER SPECS
Logic 1 Voltage
Logic 0 Voltage
Output Current
POWER CONSUMPTION
DVDD_I/O(3.3V) current consumption (QDUC mode)
DVDD(1.8V) current consumption (QDUC mode)
AVDD(3.3V) current consumption (QDUC mode)
AVDD(1.8V) current consumption (QDUC mode)
Single Tone Mode
Continuous Modulation 255x Interpolation
Continuous Modulation 4x Interpolation
Burst Modulation (25%) 255x Interpolation
Burst Modulation (25%) 4x Interpolation
Full-Sleep Mode
Inverse Sinc Filter Power Consumption
1 To achieve the best possible phase noise, the largest amplitude clock possible should be used. Reducing the clock input amplitude will
reduce the phase noise performance of the device.
2 Wake-up time refers to the recovery from analog power-down modes.
3 SYSCLK cycle refers to the actual clock frequency used on-chip by the DDS. If the reference clock multiplier is used to multiply the ex-
ternal reference clock frequency, the SYSCLK frequency is the external frequency multiplied by the reference clock multiplication factor.
If the reference clock multiplier and divider are not used, the SYSCLK frequency is the same as the external reference clock frequency.
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Figure 2 Equivalent Input/Output (I/O) Circuits
Rev. PrF | Page 5 of 38
Min
2.8
1.6
Typ
500
TBD
TBD
TBD
TBD
TBD
150
Max
0.4
TBD
TBD
1000
TBD
TBD
TBD
TBD
TBD
Unit
V
V
V
V
mA
mA
mA
mA
mA
mW
mW
mW
mW
mW
mW
mW
AD9957