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参数资料
| 型号： | EVAL-ADF4360-6EBZ1 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADF4360-6 |
| 标准包装： | 1 |
| 主要目的： | 计时，频率合成器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADF4360-6 |
| 主要属性： | 带 VCO 的单路整数-N PLL |
| 次要属性： | 1.15GHz，200kHz PFD |
| 已供物品： | 板，线缆，软件 |
| 相关产品： | ADF4360-6BCPZ-ND - IC SYNTHESIZER VCO 24LFCSP ADF4360-6BCPZRL7-ND - IC SYNTHESIZER VCO 24LFCSP ADF4360-6BCPZRL-ND - IC SYNTHESIZER VCO 24LFCSP |
ADF4360-6
Data Sheet
Rev. B | Page 20 of 24
APPLICATIONS
DIRECT CONVERSION MODULATOR
Direct conversion architectures are increasingly being used to
implement base station transmitters. Figure 17 shows how ADI
parts can be used to implement such a system.
The circuit block diagram shows the AD9761 TxDAC being
used with the AD8349. The use of dual integrated DACs, such
as the AD9761 with its specified ±0.02 dB and ±0.004 dB gain
and offset matching characteristics, ensures minimum error
contribution (over temperature) from this portion of the
signal chain.
The local oscillator is implemented using the ADF4360-6. The
low-pass filter was designed using ADIsimPLL for a channel
spacing of 200 kHz and an open-loop bandwidth of 10 kHz.
The LO ports of the AD8349 can be driven differentially from
the complementary RFOUTA and RFOUTB outputs of the
ADF4360-6. This gives better performance than a single-ended
LO driver and eliminates the often necessary use of a balun to
convert from a single-ended LO input to the more desirable
differential LO inputs for the AD8349. The typical rms phase
noise (100 Hz to 100 kHz) of the LO in this configuration is 1.07°.
The AD8349 accepts LO drive levels from 10 dBm to 0 dBm.
The optimum LO power can be software programmed on the
ADF4360-6, which allows levels from 13.5 dBm to 4.5 dBm
from each output.
The RF output is designed to drive a 50 Ω load but must be ac-
coupled, as shown in Figure 17. If the I and Q inputs are driven
in quadrature by 2 V p-p signals, the resulting output power
from the modulator is approximately 2 dBm.
AD9761
TxDAC
AD8349
REFIO
FSADJ
MODULATED
DIGITAL
DATA
QOUTB
IOUTA
IOUTB
QOUTA
2k
LOW-PASS
FILTER
LOW-PASS
FILTER
S
P
ICOMP
ATIBLE
S
E
R
IAL
BUS
ADF4360-6
VVCO
CPGND
AGND
DGND RF
OUTB
RFOUTA
CP
1nF
330pF
12nF
47nH
2.7pF
100pF
TO
RF PA
7.5nH
1nF
4.7k
6.8k
3.9k
RSET
CC
LE
DATA
CLK
REFIN
FREFIN
CN
VTUNE
DVDD AVDD CE MUXOUT
VPS1
IBBP
IBBN
QBBP
QBBN
LOIP
LOIN
VPS2
5
4
24
7
20
23
2
21
6
14
16
17
18
19
13
1
3
8
9
10
11
22
15
12
VDD
LOCK
DETECT
PHASE
SPLITTER
04440-021
51
10
F
Figure 17. Direct Conversion Modulator
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADF4360-7EB1 | 制造商:Analog Devices 功能描述:Evaluation Board For ADF4360-7 制造商:Analog Devices 功能描述:EVAL CARD ((NS)) |
| EVAL-ADF4360-7EBZ1 | 制造商:Analog Devices 功能描述:PLL/Frequency Synthesizer EVAL BOARD 制造商:Analog Devices 功能描述:PLL/FREQUENCY SYNTHESIZER EVAL BOARD, Silicon Manufacturer:Analog Devices, Silic 制造商:Analog Devices 功能描述:Eval Board ADF4360 VCO/Freq Synthesizer |
| EVAL-ADF4360-8EB1 | 制造商:Analog Devices 功能描述:Evaluation Board For ADF4360-8 |
| EVAL-ADF4360-8EBZ1 | 功能描述:BOARD EVALUATION FOR ADF4360-8 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| EVAL-ADF4360-9EBZ1 | 功能描述:EVALUATION BOARD FOR ADF4360-9 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
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