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參數(shù)資料
| 型號： | AD8349ARE |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | 700 MHz to 2700 MHz Quadrature Modulator |
| 中文描述： | 700 MHz - 2700 MHz RF/MICROWAVE QPSK MODULATOR |
| 封裝： | MO-153ABT, TSSOP-16 |
| 文件頁數(shù)： | 23/28頁 |
| 文件大小： | 969K |
| 代理商： | AD8349ARE |
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AD8349
Rev. 0 | Page 23 of 28
–110
–90
–80
–85
–100
–70
–75
4
6
–60
–65
–50
–55
–95
–105
1.0
1.5
2.0
2.5
3.0
3.5
4.0
E
CHANNEL POWER (dBm)
0
PEAK NOISE FLOOR
400kHz
600kHz
AVERAGE NOISE FLOOR
EVM
–6
–8
–12
–10
–14
–4
–2
0
2
Figure 65. 8-PSK EVM, Spectral Performance, and Noise Floor vs. Channel
Power ( Frequency = 1960 MHz)
SOLDERING INFORMATION
The AD8349 is available in a 16-lead TSSOP package with an
exposed paddle. The exposed paddle must be soldered to the
exposed metal of a ground plane for a lowered thermal
impedance and reduced inductance to ground. This results in a
junction-to-air thermal impedance (θ
JA
) of 30°C/W. If multiple
ground planes are present, the area under the exposed paddle
should be stitched together with vias.
LO GENERATION USING PLLS
Analog Devices has a line of PLLs that can be used for
generating the LO signal. Table 4 lists the PLLs together with
their maximum frequency and phase noise performance.
Table 4. ADI PLL Selection Table
ADI Model
ADF4111BRU 1200
ADF4111BCP 1200
ADF4112BRU 3000
ADF4112BCP 3000
ADF4117BRU 1200
ADF4118BRU 3000
Frequency F
IN
(MHz)
At 1 kHz Phase Noise
dBc/Hz, 200 kHz PFD
–78
–78
–86
–86
–87
–90
Analog Devices also offers the ADF4360 fully integrated
synthesizer and VCO on a single chip that offers differential
outputs for driving the local oscillator input of the AD8349.
This means that the user can eliminate the use of the balun
necessary for the single-ended-to-differential conversion. The
ADF4360 comes as a family of chips with six operating
frequency ranges. One can be chosen depending on the local
oscillator frequency required. The user should be aware that
while the use of the integrated synthesizer might come at the
expense of slightly degraded noise performance from the
AD8349, it can be a much cheaper alternative to a separate PLL
and VCO solution. Table 5 shows the options available.
Table 5. ADF4360 Family Operating Frequencies
ADI Model
Output Frequency Range (MHz)
ADF4360-1
2150/2450
ADF4360-2
1800/2150
ADF4360-3
1550/1950
ADF4360-4
1400/1800
ADF4360-5
1150/1400
ADF4360-6
1000/1250
ADF4360-7
Lower frequencies set by external L
TRANSMIT DAC OPTIONS
The AD9777 recommended in the previous sections of this data
sheet is by no means the only DAC that can be used to drive the
AD8349. There are other DACs that are appropriate, depending
on the level of performance required. Table 6 lists the dual Tx-
DACs that ADI offers.
Table 6. ADI Dual Tx – DAC Selection Table
Part
Resolution (Bits)
AD9709
8
AD9761
10
AD9763
10
AD9765
12
AD9767
14
AD9773
12
AD9775
14
AD9777
16
Update Rate (MSPS Min)
125
40
125
125
125
160
160
160
相關PDF資料 |
PDF描述 |
|---|---|
| AD8349ARE-REEL7 | 700 MHz to 2700 MHz Quadrature Modulator |
| AD8350 | Low Distortion 1.0 GHz Differential Amplifier |
| AD8350AR15 | Low Distortion 1.0 GHz Differential Amplifier |
| AD8350AR15-EVAL | Low Distortion 1.0 GHz Differential Amplifier |
| AD8350AR15-REEL | Low Distortion 1.0 GHz Differential Amplifier |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8349ARE-REEL7 | 功能描述:IC QUADRATURE MOD 700MHZ 16TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8349AREZ | 功能描述:IC QUADRATURE MOD 700MHZ 16TSSOP RoHS:是 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8349AREZ-RL7 | 功能描述:IC MOD QUAD 2.7GHZ 16TSSOP RoHS:是 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| AD8349EVAL | 制造商:Analog Devices 功能描述:IC ((NS)) |
| AD8349-EVAL | 制造商:Analog Devices 功能描述:AD8349 EVALUATION BOARD - Bulk |
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