參數(shù)資料
型號： ADL5387
廠商： Analog Devices, Inc.
英文描述： 50 MHz to 2 GHz Quadrature Demodulator
中文描述： 50兆赫至2千兆赫正交解調(diào)器
文件頁數(shù)： 17/28頁
文件大?。?/td> 648K
代理商： ADL5387
ADL5387
ERROR VECTOR MAGNITUDE (EVM)
PERFORMANCE
EVM is a measure used to quantify the performance of a digital
radio transmitter or receiver. A signal received by a receiver
would have all constellation points at the ideal locations; however,
various imperfections in the implementation (such as carrier
leakage, phase noise, and quadrature error) cause the actual
constellation points to deviate from the ideal locations.
The ADL5387 shows excellent EVM performance for various
modulation schemes. Figure 51 shows typical EVM performance
over input power range for a point-to-point application with
16 QAM modulation schemes and zero-IF baseband. The
differential dc offsets on the ADL5387 are in the order of a
few mV. However, ac coupling the baseband outputs with 10 μF
capacitors helps to eliminate dc offsets and enhances EVM
performance. With a 10 MHz BW signal, 10 μF ac coupling
capacitors with the 500 Ω differential load results in a high-pass
corner frequency of ~64 Hz which absorbs an insignificant
amount of modulated signal energy from the baseband signal.
By using ac coupling capacitors at the baseband outputs, the dc
offset effects, which can limit dynamic range at low input power
levels, can be eliminated.
Rev. 0 | Page 17 of 28
0
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
–70
10
0
–10
–20
–30
–40
INPUT POWER (dBm)
–50
–60
E
0
Figure 51. RF = 140 MHz, IF = 0 Hz, EVM vs. Input Power for a 16 QAM
10 Msym/s Signal (AC-Coupled Baseband Outputs)
Figure 52 shows the EVM performance of the ADL5387 when
ac-coupled, with an IEEE 802.16e WiMAX signal.
0
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
–50
20
10
0
–10
–20
–30
–40
E
INPUT POWER (dBm)
0
Figure 52. RF = 750MHz MHz, IF = 0 Hz, EVM vs. Input Power for a 16 QAM
10 MHz Bandwidth Mobile WiMAX Signal (AC-Coupled Baseband Outputs)
Figure 53 exhibits the zero IF EVM performance of a WCDMA
signal over a wide RF input power range.
0
–45
–40
–35
–30
–25
–20
–15
–10
–5
–70
–60
10
0
–10
–20
–30
–40
INPUT POWER (dBm)
–50
E
0
Figure 53. RF = 1950 MHz, IF = 0 Hz, EVM vs. Input Power for a WCDMA
(AC-Coupled Baseband Outputs)
相關(guān)PDF資料
PDF描述
ADL5387ACPZ-R71 50 MHz to 2 GHz Quadrature Demodulator
ADL5387ACPZ-WP1 50 MHz to 2 GHz Quadrature Demodulator
ADL5387-EVALZ1 50 MHz to 2 GHz Quadrature Demodulator
ADL5390-EVAL RF/IF Vector Multiplier
ADL5390ACPZ-REEL71 RF/IF Vector Multiplier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADL5387ACPZ 制造商:Analog Devices 功能描述:IC QUADRATUR DEMOD 50MHZ 24LFCSP 制造商:Analog Devices 功能描述:IC, QUADRATUR DEMOD, 50MHZ, 24LFCSP 制造商:Analog Devices 功能描述:IC, QUADRATUR DEMOD, 50MHZ, 24LFCSP; Frequency Min:50MHz; Frequency Max:2GHz; RF Type:Quadrature; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; RF IC Case Style:LFCSP; No. of Pins:24; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes
ADL5387ACPZ-R2 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
ADL5387ACPZ-R7 功能描述:IC QUADRATUR DEMOD 50MHZ 24LFCSP RoHS:是 類別:RF/IF 和 RFID >> RF 解調(diào)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:解調(diào)器 LO 頻率:- RF 頻率:70MHz ~ 300MHz P1dB:-9dBm 增益:- 噪音數(shù)據(jù):6.36dB 電流 - 電源:41.5mA 電源電壓:2.7 V 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-TQFN-EP（5x5） 包裝:帶卷 (TR)
ADL5387ACPZ-R71 制造商:AD 制造商全稱:Analog Devices 功能描述:50 MHz to 2 GHz Quadrature Demodulator
ADL5387ACPZ-WP 功能描述:IC QUAD DEMOD 10-2000MHZ 24LFCSP RoHS:是 類別:RF/IF 和 RFID >> RF 解調(diào)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:解調(diào)器 LO 頻率:- RF 頻率:70MHz ~ 300MHz P1dB:-9dBm 增益:- 噪音數(shù)據(jù):6.36dB 電流 - 電源:41.5mA 電源電壓:2.7 V 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-TQFN-EP（5x5） 包裝:帶卷 (TR)
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*