AD6643-250EBZ Analog Devices, AD6643-250EBZ Datasheet - Page 19

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AD6643-250EBZ

Manufacturer Part Number
AD6643-250EBZ
Description
Data Conversion IC Development Tools 11 Bit Dual IF Diversity 3G Receiver
Manufacturer
Analog Devices
Type
ADCr
Series
AD6643r
Datasheet

Specifications of AD6643-250EBZ

Rohs
yes
Product
Evaluation Boards
Tool Is For Evaluation Of
AD6643-250
Interface Type
SPI, USB
Operating Supply Voltage
6 V
Description/function
250 MSPs per channel dual IF receiver
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Current
2 A
Factory Pack Quantity
1
For Use With
HSC-ADC-EVALCZ
Data Sheet
Figure 30. AD6643-250 Two Tone FFT with f
Figure 31. AD6643-250 Two Tone FFT with f
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
250MSPS
89.12MHz @ –7.0dBFS
92.12MHz @ –7.0dBFS
SFDR = 86dBc (93dBFS)
10
10
20
20
30
30
40
40
FREQUENCY (MHz)
FREQUENCY (MHz)
50
50
60
60
IN1
70
70
IN1
= 184.12 MHz, f
250MSPS
184.12MHz @ –7.0dBFS
187.12MHz @ –7.0dBFS
SFDR = 84dBc (91dBFS)
= 89.12 MHz, f
80
80
90
90
100
100
IN2
110
110
IN2
= 187.12 MHz
= 92.12 MHz
120
120
Rev. C | Page 19 of 40
Figure 32. AD6643-250 Single Tone SNR/SFDR vs. Sample Rate (f
35,000
30,000
25,000
20,000
15,000
10,000
100
5000
95
90
85
80
75
70
65
60
40
0
Figure 33. AD6643-250 Grounded Input Histogram
SFDR, CHANNEL A
60
N – 1
80
100
SFDR, CHANNEL B
with f
SAMPLE RATE (MSPS)
120
OUTPUT CODE
SNR, CHANNEL B
IN
SNR, CHANNEL A
= 90.1 MHz
140
N
160
180
0.995LSB rms
32,768 TOTAL HITS
200
N + 1
220
AD6643
240
S
)

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