AD6659 Analog Devices, AD6659 Datasheet - Page 12

• Manufacturer Part Number: AD6659
• Description: Dual IF Receiver
• Manufacturer: Analog Devices

Specifications of AD6659

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 80MSPS
• Interface: Par
• Analog Input Type: Diff-Bip
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD6659
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS,
DCS disabled, unless otherwise noted.
–100
–120
–140
–100
–120
–140
–100
–120
–140
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
0
80MSPS
30.6MHz @ –1dBFS
SNR = 71.4 dB (72.4dBFS)
SFDR = 94.4dBc
Figure 7. Single-Tone FFT with f
Figure 6. Single-Tone FFT with f
Figure 8. Single-Tone FFT with f
5
5
5
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
15
80MSPS
9.7MHz @ –1dBFS
SNR = 70.2dB (71.2dBFS)
SFDR = 93.6dBc
20
20
20
80MSPS
69MHz @ –1dBFS
SNR = 70dB (71dBFS)
SFDR = 88.9dBc
25
25
25
IN
IN
IN
= 30.6 MHz
= 9.7 MHz
= 69 MHz
30
30
30
35
35
35
40
40
40
Rev. | Page 12 of 40
Figure 10. Two-Tone FFT with f
–105
–120
–135
Figure 11. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
–105
–120
–135
–100
–120
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
–20
–40
–60
–80
0
0
0
–70
0
0
F2 – F1 2F2 – F1
80MSPS
100.3MHz @ –1dBFS
SNR = 70.5dB (71.5dBFS)
SFDR = 83.5dBc
Figure 9. Single-Tone FFT with f
SFDR (dBFS)
80MSPS
28.3MHz @ –7dBFS
30.6MHz @ –7dBFS
SFDR = 87.9dBc
IMD3 (dBFS)
4
IMD3 (dBc)
4
SFDR (dBc)
–60
f
IN1
8
8
= 28.3 MHz and f
2F1 + F2
12
12
–50
INPUT AMPLITUDE (dBFS)
FREQUENCY (MHz)
FREQUENCY (MHz)
16
16
IN1
F1 + F2
–40
20
= 28.3 MHz and f
20
IN2
= 30.6 MHz
2F2 – F1
24
24
–30
IN
= 100.3 MHz
28
28
–20
32
IN2
32
2F1 – F2
= 30.6 MHz
36
36
–10
40
40