AD9862 Analog Devices, AD9862 Datasheet - Page 9

• Manufacturer Part Number: AD9862
• Description: 12-/14-Bit Mixed Signal Front-End (MxFE®) Processor for Broadband Communications
• Manufacturer: Analog Devices

Specifications of AD9862

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 64MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: QFP

REV. 0
–100
–120
–100
TPC 1. AD9862 Tx Output 6 MHz
Single Tone; CLKIN = 32 MHz;
DLL 4
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–40
–60
–80
–60
–65
–70
–75
–80
–85
–90
TPC 4. TxDAC Generating an
OFDM Signal; CLKIN = 64 MHz,
DLL 2
0
0
TPC 7. TxDAC Harmonic
Distortion vs. f
0
0
5
THD
2nd
3rd
20
20
10
Setting
Setting
40
40
FREQUENCY – MHz
FREQUENCY – MHz
15
60
60
f
OUT
80
80
20
1
OUT
– MHz
f
f
4
DATA
f
2
DATA
DATA
INTERPOLATION
100 110 120
100 110 120
INTERPOLATION
INTERPOLATION
= 32MSPS
= 32MSPS
= 64MSPS
25
30
140
140
35
Typical Performance Characteristics–AD9860/AD9862
–100
–100
–120
TPC 2. AD9862 Tx Output 6 MHz
Single Tone; CLKIN = 64 MHz;
DLL 2
TPC 8. Signal-to-Noise Ratio (SNR)
vs. f
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–40
–60
–80
74
73
72
71
70
69
68
TPC 5. TxDAC Generating an
OFDM Signal; CLKIN = 64 MHz,
DLL 2
0
0
0
0
0
OUT
AD9862
20
20
5
Setting
Setting
40
40
FREQUENCY – MHz
FREQUENCY – MHz
FREQUENCY – MHz
10
60
60
–9–
AD9860
15
80
80
f
4
f
2
DATA
f
4
DATA
DATA
100
INTERPOLATION
100
INTERPOLATION
INTERPOLATION
= 32MSPS
= 64MSPS
20
= 32MSPS
110 120
110 120
25
140
140
30
TPC 9. Two Tone Intermodulation
vs. f
–100
–100
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–40
–60
–80
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
TPC 3. AD9862 Tx Output 6 MHz
Single Tone; CLKIN = 128 MHz;
DLL 1
TPC 6. Zoomed in Plot of Four
Notched Carriers of OFDM Signal;
CLKIN = 64 MHz, DLL 2
7.90
0
0
0
OUT1
5
7.92 7.94 7.96 7.98 8.00 8.02 8.04 8.06 8.08
20
(f
CARRIER FREQUENCY – MHz
10
Setting
OUT2
40
FREQUENCY – MHz
FREQUENCY – MHz
60
= f
15
OUT1
80
f
4
f
4
f
2
DATA
DATA
DATA
100 110 120
20
+ 1 MHz)
INTERPOLATION
INTERPOLATION
INTERPOLATION
= 32MSPS
= 32MSPS
= 64MSPS
AVDD = 3.0V
AVDD = 3.3V
AVDD = 3.6V
25
Setting
140
30