參數(shù)資料
型號(hào)： ADF4151BCPZ-RL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 17/28頁(yè)
文件大?。?/td> 0K
描述： IC FRACTION-N FREQ SYNTH 32LFCSP
標(biāo)準(zhǔn)包裝： 1,500
類(lèi)型： *
PLL： 是
輸入： CMOS，TTL
輸出： 時(shí)鐘
電路數(shù)： 1
比率 - 輸入:輸出： 2:1
差分 - 輸入:輸出： 是/無(wú)
頻率 - 最大： 3.5GHz
除法器/乘法器： 是/是
電源電壓： 3 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 32-WFQFN 裸露焊盤(pán)，CSP
供應(yīng)商設(shè)備封裝： 32-LFCSP-WQ（5x5）
包裝： 帶卷 (TR)
ADF4151
Data Sheet
Rev. B | Page 24 of 28
APPLICATIONS INFORMATION
DIRECT CONVERSION MODULATOR
Direct conversion architectures are increasingly being used to
implement base station transmitters. Figure 29 shows how Analog
Devices, Inc., parts can be used to implement such a system.
The circuit block diagram shows the AD9788 TxDAC being
used with the ADL5375. The use of dual integrated DACs, such
as the AD9788 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 signal for the I channel of the quadrature
modulator is taken from the OUT1 differential outputs of the
AD9788, and the OUT2 differential outputs provide the signal
for the Q channel of the quadrature modulator ADL5375.
The local oscillator (LO) is implemented using the ADF4151.
The low-pass filter was designed using ADIsimPLL for a channel
spacing of 200 kHz and a closed-loop bandwidth of 35 kHz.
The LO ports of the ADL5375 can be driven from the VCO
output. To ensure that all three RF ports (VCO output, RFIN and
LOIP) are connected to 50 impedance, the matching network
of three 18 resistors must be placed as in Figure 29. AC
coupling of the RF signal is implemented by the capacitors
connected in serial with the 18 resistors . It is possible, as
well, to use a balun to convert from a single-ended LO input to
the differential LO inputs for the ADL5375.
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.
10265-
029
AD9788
TxDAC
REFIO
FSADJ
OUT2_N
OUT1_P
OUT1_N
OUT2_P
2k
LOW-PASS
FILTER
LOW-PASS
FILTER
2700pF
1200pF
39nF
680
360
IBBP
IBBN
QBBP
QBBN
LOIP
LOIN
S
P
I-
CO
M
P
AT
IBL
E
S
E
RI
AL
BUS
ADF4151
CPGND
AGND
SDGND
1nF
4.7k
RSET
LE
DATA
CLK
REFIN
FREFIN
CPOUT
AVDD2 AVDD2 CE
MUXOUT
VCC
VCOOUT
VCO
VTUNE
17
16
AVDD1
10
29
1
2
3
22
8
11
18
31
VDD
LOCK
DETECT
51
25
30
LD
7
DVDD
28
32
6
SDVDD VP
5
SW
4
ADL5375
RFOUT
QUADRATURE
PHASE
SPLITTER
DSOP
RFIN–
RFIN+
15
14
1nF
100pF
VVCO
18
100pF
18
MODULATED
DIGITAL
DATA
VP
9
AGND
21
DGND
27
DGND
26
Figure 29. Direct Conversion Modulator
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ADF4152HVBCPZ 功能描述:IC FRACTION-N FREQ SYNTH 32LFCSP 制造商:analog devices inc. 系列:- 包裝:托盤(pán) 零件狀態(tài):在售 類(lèi)型:* PLL:是 輸入:CMOS 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:2:2 差分 - 輸入:輸出:是/無(wú) 頻率 - 最大值:5GHz 分頻器/倍頻器:是/是 電壓 - 電源:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:32-LFCSP-VQ（5x5） 標(biāo)準(zhǔn)包裝:1
ADF4152HVBCPZ-RL7 功能描述:IC FRACTION-N FREQ SYNTH 32LFCSP 制造商:analog devices inc. 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 類(lèi)型:* PLL:是 輸入:CMOS 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:2:2 差分 - 輸入:輸出:是/無(wú) 頻率 - 最大值:5GHz 分頻器/倍頻器:是/是 電壓 - 電源:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:32-LFCSP-VQ（5x5） 標(biāo)準(zhǔn)包裝:1
ADF4153 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Fractional-N Frequency Synthesizer
ADF4153ABCPZ 制造商:Analog Devices 功能描述:SINGLE RF F-N PLL 制造商:Analog Devices 功能描述:SINGLE RF F-N PLL - Trays 制造商:Analog Devices 功能描述:IC PLL FREQ SYNTHESIZER 20-LFCSP 制造商:Analog Devices 功能描述:IC FREQ SYNTHESIZER 4GHZ 20 制造商:Analog Devices 功能描述:IC, FREQ SYNTHESIZER, 4GHZ, 20LFCSP 制造商:Analog Devices Inc. 功能描述:Phase Locked Loops - PLL Single RF F-N PLL 制造商:Analog Devices 功能描述:PLL SYNTHESIZER, FREQUENCY, 4GHZ, LFCSP-20; PLL Type:Frequency Synthesis; Frequency:4GHz; Supply Current:20mA; Supply Voltage Min:2.7V; Supply Voltage Max:3.3V; Digital IC Case Style:LFCSP; No. of Pins:20; Package / Case:20-LFCSP 制造商:Analog Devices 功能描述:IC, FREQ SYNTHESIZER, 4GHZ, 20LFCSP; Synthesizer Type:Frequency; Frequency:4GHz; Supply Voltage Min:2.7V; Supply Voltage Max:3.3V; Supply Current:20mA; Digital IC Case Style:LFCSP; No. of Pins:20; Operating Temperature Min:-40C; ;RoHS Compliant: Yes 制造商:Analog Devices 功能描述:PLL SYNTHESIZER, FREQUENCY, 4GHZ, LFCSP-20; PLL Type:Frequency Synthesis; Frequency:4GHz; Supply Current:20mA; Supply Voltage Min:2.7V; Supply Voltage Max:3.3V; Digital IC Case Style:LFCSP; No. of Pins:20; Package / Case:20-LFCSP ;RoHS Compliant: Yes
ADF4153ABCPZ-RL7 制造商:Analog Devices 功能描述:SINGLE RF F-N PLL 制造商:Analog Devices 功能描述:Fractional-N Frequency Synthesizer 20-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:SINGLE RF F-N PLL - Tape and Reel 制造商:Analog Devices 功能描述:IC PLL FREQ SYNTHESIZER 20LFCSP 制造商:Analog Devices Inc. 功能描述:Phase Locked Loops - PLL Single RF F-N PLL
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