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IP3253CZ8-4-TTL,13 其他数据使用手册 - NXP（恩智浦）
制造商:
NXP（恩智浦）
分类:
EMI/RFI屏蔽/抑制
封装:
UFDFN-8
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IP3253CZ8-4-TTL,13数据手册
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IP3253_IP3254-TTL All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 5 May 2011 5 of 13
NXP Semiconductors
IP3253/IP3254-TTL
Integrated 4-, 6- and 8-channel passive EMI-filter network
6. Application information
6.1 Insertion loss
The devices are specifically designed as EMI/RFI filters for multichannel interfaces.
The block schematic for measuring insertion loss in a 50 Ω system is shown in Figure 1
.
An example of the measurement curves for all channels is shown in Figure 2
.
Test Printed-Circuit Board (PCB) utilizes laser-drilled micro-via holes which connect the ground
plane to the device ground pins.
Fig 1. Frequency response setup
018aaa016
50 Ω
V
gen
50 Ω
DUT
OUTIN
TEST BOARD
(1) Channel 1 (pin 1 to pin 8)
(2) Channel 4 (pin 4 to pin 5)
(1) Channel 3 (pin 3 to pin 6)
(2) Channel 2 (pin 2 to pin 7)
Fig 2. IP3253CZ8-4-TTL measured insertion loss magnitudes
001aak301
−30
−20
−40
−10
0
s
21
(dB)
−50
f (MHz)
110
4
10
3
10 10
2
(1)
(2)
001aak302
−30
−20
−40
−10
0
s
21
(dB)
−50
f (MHz)
110
4
10
3
10 10
2
(1)
(2)
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