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參數(shù)資料
| 型號： | AD9865BCPZRL1 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Broadband Modem Mixed-Signal Front End |
| 中文描述： | 寬帶調(diào)制解調(diào)器混合信號前端 |
| 文件頁數(shù)： | 12/48頁 |
| 文件大?。?/td> | 1672K |
| 代理商： | AD9865BCPZRL1 |
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AD9865
TYPICAL PERFORMANCE CHARACTERISTICS
Rx PATH TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = CLKVDD = DVDD = DRVDD = 3.3 V, f
OSCIN
= f
ADC
= 50 MSPS, low-pass filter’s f
3 dB
= 22 MHz, AIN = 1 dBFS,
RIN = 50 , half- or full-duplex interface, default power bias settings.
Rev. A | Page 12 of 48
0
FREQUENCY (MHz)
I
0
6.25
12.50
18.75
25.00
10
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
FUND = –1dBFS
SINAD = 59.1dBFS
ENOB = 9.53 BITS
SNR = 60.2dBFS
THD = –65.2dBFS
SFDR = –64.9dBc (THIRD HARMONIC)
RBW = 12.21kHz
Figure 3. Spectral Plot with 4 k FFT of Input Sinusoid with
RxPGA = 0 dB and P
IN
= 9 dBm
0
FREQUENCY (MHz)
I
0
5
10
15
20
25
–30
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
RBW = 12.2kHz
Figure 4. Spectral Plot with 4 k FFT of 84-Carrier DMT Signal
with PAR = 10.2 dB, P
IN
= 33.7 dBm, and RxPGA = 36 dB
0
INPUT AMPLITUDE (dBFS)
0dBFS = 2V p-p
S
T
–21
–18
–15
–12
–9
–6
–3
0
66
45
48
51
54
57
60
63
–50
–92
–86
–80
–74
–68
–62
–56
SINAD @ 3.14V
SINAD @ 3.3V
SINAD @ 3.46V
THD @ 3.14V
THD @ 3.3V
THD @ 3.46V
Figure 5. SINAD and THD vs. Input Amplitude and Supply
(f
IN
= 8 MHz, LPF f
3 dB
= 26 MHz; Rx PGA = 0 dB)
0
RxPGA GAIN (dB)
S
E
–6
0
6
12
18
24
30
36
42
48
62
41
44
47
50
53
56
59
10.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
1MHz
5MHz
10MHz
15MHz
20MHz
Figure 6. SINAD/ENOB vs. RxPGA Gain and Frequency
0
RxPGA GAIN (dB)
T
–6
0
6
12
18
24
30
36
42
48
–55
–85
–80
–75
–70
–65
–60
1MHz
5MHz
10MHz
15MHz
20MHz
Figure 7. THD vs. RxPGA Gain and Frequency
0
RxPGA GAIN (dB)
S
T
–6
0
6
12
18
24
30
36
42
48
62
41
44
47
50
53
56
59
–45
–80
–75
–70
–65
–60
–55
–50
SINAD @ +25
°
C
SINAD @ +85
°
C
SINAD @ –40
°
C
THD @ +25
°
C
THD @ +85
°
C
THD @ –40
°
C
Figure 8. SINAD/THD Performance vs. RxPGA Gain
and Temperature ( f
IN
= 5 MHz)
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