參數(shù)資料
型號(hào)： 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(yè)數(shù)： 19/28頁(yè)
文件大小： 648K
代理商： ADL5387
ADL5387
As an example, a second-order, Butterworth, low-pass filter
design is shown in Figure 56 where the differential load impedance
is 500 Ω, and the source impedance of the ADL5387 is 50 Ω.
The normalized series inductor value for the 10-to-1, load-to-
source impedance ratio is 0.074 H, and the normalized shunt
capacitor is 14.814 F. For a 10.9 MHz cutoff frequency, the
single-ended equivalent circuit consists of a 0.54 μH series
inductor followed by a 433 pF shunt capacitor.
The balanced configuration is realized as the 0.54 μH inductor
is split in half to realize the network shown in Figure 56.
Rev. 0 | Page 19 of 28
0
V
S
R
S
2
R
S
R
L
R
S
2
R
L
2
R
L
2
433pF
V
S
R
S
= 50
R
L
= 500
0.54μH
0.27μH
0.27μH
433pF
BALANCED
CONFIGURATION
DENORMALIZED
SINGLE-ENDED
EQUIVALENT
V
S
R
S
= 50
= 0.1
R
L
= 500
L
N
= 0.074H
C
N
14.814F
NORMALIZED
SINGLE-ENDED
CONFIGURATION
= 25
= 25
= 250
= 250
f
C
= 10.9MHz
f
C
= 1Hz
Figure 56. Second-Order, Butterworth, Low-Pass Filter Design Example
A complete design example is shown in Figure 59. A sixth-order
Butterworth differential filter having a 1.9 MHz corner frequency
interfaces the output of the ADL5387 to that of an ADC input.
The 500 Ω load resistor defines the input impedance of the
ADC. The filter adheres to typical direct conversion WCDMA
applications, where 1.92 MHz away from the carrier IF frequency,
1 dB of rejection is desired and 2.7 MHz away 10 dB of rejection
is desired.
Figure 57 and Figure 58 show the measured frequency response
and group delay of the filter.
10
5
–20
–15
–10
–5
0
0
3
3.0
2.5
2.0
1.5
1.0
0.5
M
FREQUENCY (MHz)
0
.5
Figure 57. Baseband Filter Response
900
800
700
600
500
400
300
200
100
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
D
FREQUENCY (MHz)
0
Figure 58. Baseband Filter Group Delay
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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(biāo)準(zhǔn)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(biāo)準(zhǔn)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)
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