參數(shù)資料
型號(hào)： EVAL-ADF4112EBZ1
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 18/28頁(yè)
文件大?。?/td> 0K
描述： BOARD EVAL FOR ADF4112
標(biāo)準(zhǔn)包裝： 1
主要目的： 計(jì)時(shí)，頻率合成器
嵌入式： 否
已用 IC / 零件： ADF4112
主要屬性： 單路整數(shù)-N PLL
次要屬性： 836MHz CDMA 圖形用戶界面
已供物品： 板，線纜，軟件
相關(guān)產(chǎn)品： ADF4112BCPZ-ND - IC PLL FREQ SYNTH 3GHZ 20-LFCSP
ADF4112BCPZ-RL-ND - IC PLL FREQ SYNTH 3GHZ 20-LFCSP
ADF4112BCPZ-RL7-ND - IC PLL FREQ SYNTH 3GHZ 20-LFCSP
ADF4112BRUZ-REEL7-ND - IC PLL RF FREQ SYNTHESZR 16TSSOP
ADF4112BRUZ-REEL-ND - IC PLL RF FREQ SYNTHESZR 16TSSOP
ADF4112BRUZ-ND - IC SYNTH PLL RF 3.0GHZ 16-TSSOP
ADF4112BRU-REEL7-ND - IC PLL FREQ SYNTHESIZER 16-TSSOP
ADF4112BRU-ND - IC SYNTH PLL RF 3.0GHZ 16-TSSOP
Data Sheet
ADF4110/ADF4111/ADF4112/ADF4113
Rev. F | Page 25 of 28
DIRECT CONVERSION MODULATOR
In some applications, a direct conversion architecture can be
used in base station transmitters. Figure 37 shows the combina-
tion available from ADI to implement this solution.
The circuit diagram shows the AD9761 being used with the
AD8346. The use of dual integrated DACs such as the AD9761
with 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 (LO) is implemented using the ADF4113. In
this case, the OSC 3B1-13M0 provides the stable 13 MHz
reference frequency. The system is designed for a 200 kHz
channel spacing and an output center frequency of 1960 MHz.
The target application is a WCDMA base station transmitter.
Typical phase noise performance from this LO is 85 dBc/Hz at
a 1 kHz offset.
The LO port of the AD8346 is driven in single-ended fashion.
LOIN is ac-coupled to ground with the 100 pF capacitor; LOIP
is driven through the ac coupling capacitor from a 50 source.
An LO drive level of between 6 dBm and 12 dBm is required.
The circuit of Figure 37 gives a typical level of 8 dBm.
The RF output is designed to drive a 50 load but must be ac-
coupled as shown in Figure 37. If the I and Q inputs are driven
in quadrature by 2 V p-p signals, the resulting output power is
around 10 dBm.
RSET
ADF4113
18
100pF
18
REFIN
100pF
RFINA
RFINB
CP
SERIAL
DIGITAL
INTERFACE
TCXO
OSC 3B1-13M0
100pF
620pF
3.9k
3.3k
9.1nF
4.7k
18
100pF
RFOUT
POWER SUPPLY CONNECTIONS AND DECOUPLING CAPACITORS
ARE OMITTED FROM DIAGRAM TO INCREASE CLARITY.
AD9761
TxDAC
REFIO
FS ADJ
MODULATED
DIGITAL
DATA
QOUTB
IOUTA
IOUTB
QOUTA
AD8346
LOIN
LOIP
VOUT
100pF
2k
51
910pF
VCO190-1960T
IBBP
IBBN
QBBP
QBBN
LOW-PASS
FILTER
LOW-PASS
FILTER
03496-0-042
Figure 37. Direct Conversion Transmitter Solution
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參數(shù)描述
EVAL-ADF4113EB1 制造商:AD 制造商全稱:Analog Devices 功能描述:GSM900 Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4113EB2 制造商:AD 制造商全稱:Analog Devices 功能描述:1750MHz Evaluation Board For PLL Frequency Synthesizer
EVAL-ADF4113EBZ1 功能描述:BOARD EVAL FOR ADF4113 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081
EVAL-ADF4113EBZ2 功能描述:BOARD EVAL FOR ADF4113 1750MHZ RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源
EVAL-ADF4113HVEB1Z 功能描述:BOARD EVALUATION FOR ADF4113HV RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081
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