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AD6643 Datasheet(PDF) 6 Page - Analog Devices

Part # AD6643
Description  Dual IF Receiver 1.8 V supply voltages Internal ADC voltage reference
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD6643 Datasheet(HTML) 6 Page - Analog Devices

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AD6643
Rev. 0 | Page 6 of 36
Parameter1
Temperature
Min
Typ
Max
Unit
TWO TONE SFDR
fIN = 184.12 MHz, 187.12 MHz (−7 dBFS)
25°C
88
dBc
CROSSTALK2
Full
95
dB
FULL POWER BANDWIDTH3
25°C
400
MHz
NOISE BANDWIDTH4
25°C
1000
MHz
1 For a complete set of definitions, see the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation.
2 Crosstalk is measured at 100 MHz with −1 dBFS on one channel and with no input on the alternate channel.
3 Full power bandwidth is the bandwidth of operation where typical ADC performance can be achieved.
4 Noise bandwidth is the −3 dB bandwidth for the ADC inputs across which noise may enter the ADC and it is not attenuated internally.
DIGITAL SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.75 V p-p full-scale input range,
DCS enabled, default SPI, unless otherwise noted.
Table 3.
Parameter
Temperature
Min
Typ
Max
Unit
DIFFERENTIAL CLOCK INPUTS (CLK+, CLK−)
Logic Compliance
CMOS/LVDS/LVPECL
Internal Common-Mode Bias
Full
0.9
V
Differential Input Voltage
Full
0.3
3.6
V p-p
Input Voltage Range
Full
AGND
AVDD
V
Input Common-Mode Range
Full
0.9
1.4
V
Input Current Level
High
Full
10
22
μA
Low
Full
−22
−10
μA
Input Capacitance
Full
4
pF
Input Resistance
Full
8
10
12
SYNC INPUT
Logic Compliance
CMOS/LVDS
Internal Bias
Full
0.9
V
Input Voltage Range
Full
AGND
AVDD
V
Input Voltage Level
High
Full
1.2
AVDD
V
Low
Full
AGND
0.6
V
Input Current Level
High
Full
−5
+5
μA
Low
Full
−100
+100
μA
Input Capacitance
Full
1
pF
Input Resistance
Full
12
16
20
LOGIC INPUT (CSB)1
Input Voltage Level
High
Full
1.22
2.1
V
Low
Full
0
0.6
V
Input Current Level
High
Full
−5
+5
μA
Low
Full
−80
−45
μA
Input Resistance
Full
26
Input Capacitance
Full
2
pF
LOGIC INPUT (SCLK)2
Input Voltage Level
High
Full
1.22
2.1
V
Low
Full
0
0.6
V


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