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參數資料
| 型號： | AD9877 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Mixed-Signal Front End Set-Top Box, Cable Modem |
| 中文描述： | 混合信號前端機頂盒，電纜調制解調器 |
| 文件頁數： | 10/36頁 |
| 文件大?。?/td> | 1094K |
| 代理商： | AD9877 |
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AD9877
TYPICAL PERFORMANCE CHARACTERISTICS
V
AS
= 3.3 V, V
DS
= 3.3 V, f
OSCIN
= 27 MHz, f
SYSCLK
= 216 MHz, f
MCLK
= 54 MHz (M = 8 and N = 4). ADC sample rate derived directly from
f
OSCIN
, R
SET
= 4.02 kΩ (I
OUT
= 10 mA), and 75 Ω
DAC load, unless otherwise noted.
Rev. B | Page 10 of 36
TYPICAL POWER CONSUMPTION CHARACTERISTICS
Transmitted 20 MHz single tone, unless otherwise noted.
340
f
SYSCLK
(MHz)
120
240
140
160
180
200
220
P
320
300
280
260
240
220
200
180
0
Figure 3. Power Consumption vs. Clock Speed, f
SYSCLK
0
% DUTY CYCLE
0
100
10
30
50
60
70
310
P
300
290
280
270
260
250
20
40
90
80
Figure 4. Power Consumption vs. Transmit Burst Duty Cycle
DUAL SIDEBAND TRANSMIT SPECTRUM
See Table 11 for dual-tone generation.
0
FREQUENCY (MHz)
0
2
2
6
10
12
14
M
–
20
–
30
–
50
–
60
–
70
–
90
4
8
18
16
–
80
–
40
–
10
0
0
Figure 5. Dual Sideband Spectral Plot, f
C
= 5 MHz, f = 1 MHz,
R
SET
= 4.02 KΩ, DAC Gain = 7.5 dB, RBW = 1 kHz
SINGLE SIDEBAND TRANSMIT SPECTRUM
FREQUENCY (MHz)
55
75
61
65
67
69
M
59
63
73
71
0
–
20
–
30
–
50
–
60
–
70
–
90
–
80
–
40
–
10
57
0
Figure 6. Dual Sideband Spectral Plot, f
C
= 65 MHz, f = 1 MHz,
R
SET
= 4.02 KΩ, (I
OUT
= 10 mA), RBW = 1 kHz
FREQUENCY (MHz)
0
110
30
50
60
70
0
M
–20
–30
–50
–60
–70
–90
20
40
90
80
–80
–40
–10
10
100
0
Figure 7. Single Sideband @ 65 MHz, RBW = 2 kHz, f
C
= 66 MHz,
f = 1 MHz, R
SET
= 4.02 KΩ, DAC gain = 7.5 dB
FREQUENCY (MHz)
0
110
30
50
60
70
0
M
–20
–30
–50
–60
–70
–90
20
40
90
80
–80
–40
–10
10
100
0
Figure 8. Single Sideband @ 42 MHz, RBW = 2 kHz, f
C
= 43 MHz,
f = 1 MHz, R
SET
= 4.02 KΩ, DAC gain = 7.5 dB
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|---|---|
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| AD9877-EB | Mixed-Signal Front End Set-Top Box, Cable Modem |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9877ABS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9877ABS-1 | 制造商:Analog Devices 功能描述: |
| AD9877ABSZ | 功能描述:IC PROCESSOR FRONT END 100MQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模擬前端 (AFE) 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:- 通道數:2 功率（瓦特）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數字:3 V ~ 3.6 V 封裝/外殼:32-VFQFN 裸露焊盤 供應商設備封裝:32-QFN（5x5） 包裝:帶卷 (TR) |
| AD9877BS | 制造商:Analog Devices 功能描述: |
| AD9877-EB | 制造商:Analog Devices 功能描述: |
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