PAC250QT [CALMIRCO]

P/ACTIVE EMI/RFI T FILTER; P /有源EMI / RFI T型滤波器


型号：	PAC250QT
厂家：	CALIFORNIA MICRO DEVICES CORP
描述：	P/ACTIVE EMI/RFI T FILTER P /有源EMI / RFI T型滤波器 LTE
文件：	总3页 (文件大小：65K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

CALIFORNIA MICRO DEVICES

PACT

P/ACTIVE EMI/RFI T FILTER

Pin Assignments

Features

• 8 Filter Channels in Miniature QSOP Package

• Ideal Frequency Response to Over 3 GHz

GND

Filt1

Filt2

Filt3

GND

Filt4

Filt5

GND

Filt6

Filt7

Filt8

GND

Filt1

Filt2

Filt3

GND

Filt4

Filt5

GND

Filt6

Filt7

Filt8

GND

• Low In-Band Insertion Loss Maintains Signal

Integrity

• Low Distortion Low Cross Talk

• ESD Protected

Applications

• EMI/RFI Filter

• Low Pass Filter

• SCSI Port Filter

• LCD Panel Display Filter

Product Description

Note: CAMD’s P/Active T Filter is a higher performance, upgraded version of the original PRC200/210 series which provides 2KV ESD

protection, minimized lead inductance and parasitic capacitive effects (with added ground pins), and improved crosstalk and filter

performance characteristics at high data transmission rates. They exhibit almost ideal RC characteristics to 3 GHz. The PACT series

is recommended for all new designs.

CAMD’s P/Active T is a highly integrated thin film resistor-capacitor network designed to suppress EMI/RFI noise at

I/O ports of personal computers and peripherals, workstations, Local Area Network (LAN), Asynchronous Transfer

Mode (ATM), and Wide Area Network (WAN). The filter includes ESD protection circuitry which prevents device

destruction when subjected to ESD discharges of greater than 2KV. The ESD protection circuitry permits the filter to

operate on bipolar signals of up to 6V. CAMD’s PACT is housed in a surface mount package suitable for bottom side

mounting to the board. This integrated network solution minimizes space and routing problems and improves reliability

and yields.

Why P/Active EMI/RFI filters? EMI/RFI filters are needed to suppress noise at low and high frequencies of the signal.

Ferrite beads, commonly used for EMI/RFI filtering, are bulky and ineffective at low frequencies and have saturation

problems at high frequencies. Resistor-capacitor networks offer the best technical approach for effective EMI/RFI

filtering. Also, conventional thick film-based EMI/RFI filters do not effectively suppress noise at high frequencies.

SCHEMATIC CONFIGURATION

STANDARD SPECIFICATIONS

Absolute Tolerance (R)

10%

Absolute Tolerance (C)

Absolute Tolerance (C=15pF)

Operating Temperature Range

Power Rating/Resistor

10%

0 C to 70 C

100mW

Leakage Current

1µA @ 25 C MAX

Crosstalk (see Text Circuit)

< 5% (typical)

ESD Clamp

Positive Clamp

> 6V

Negative Clamp

< –6V

ESD Protection

> 2KV

Storage Temperature

Package Power Rating

–60 C to 150 C

1.00W, MAX

C1100600

1/17/2001 215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

PACT

CALIFORNIA MICRO DEVICES

STANDARD VALUES

R(W)

C(pF)

RC Code

100/150T

100/101T

150/470T

250/101T

250/201T

330/470T

330/101T

330/221T

390/500T

390/221T

470/330T

470/470T

101/101T

fc @ 3db‡

1063MHz

160MHz

226MHz

64MHz

100

200

32MHz

103MHz

27MHz

100

220

22MHz

82MHz

220

19MHz

103MHz

72MHz

100

16MHz

‡ with 0 source impedance

STANDARD PART ORDERING INFORMATION

Package Ordering Part Number

RC Code

100/150T

100/101T

150/470T

250/101T

250/201T

330/470T

330/101T

330/221T

390/500T

390/221T

470/330T

470/470T

101/101T

Pins

Style*

QSOP

Tubes

Tape & Reel

Part Marking

PAC100/150TQ/T

PAC100/101TQ/T

PAC150/470TQ/T

PAC250/101TQ/T

PAC250/201TQ/T

PAC330/470TQ/T

PAC330/101TQ/T

PAC330/221TQ/T

PAC390/500TQ/T

PAC390/221TQ/T

PAC470/330TQ/T

PAC470/470TQ/T

PAC101/101TQ/T

PAC100/150Q/R

PAC100/101TQ/R

PAC150/470TQ/R

PAC250/101TQ/R

PAC250/201TQ/R

PAC330/470TQ/R

PAC330/101TQ/R

PAC330/221TQ/R

PAC390/500TQ/R

PAC390/ 221TQ/R

PAC470/330TQ/R

PAC470/470TQ/R

PAC101/101TQ/R

PAC100/150TQ

PAC100/101TQ

PAC150/470TQ

PAC250/101TQ

PAC250/201TQ

PAC330/470TQ

PAC330/101TQ

PAC330/221TQ

PAC390/500TQ

PAC390/221TQ

PAC470/330TQ

PAC470/470TQ

PAC101/101TQ

* Also available in 300 mil wide SOIC package. Contact your local CAMD Sales Representative or the factory for availability.

50Ω

Filter Cross Talk Test Circuit (TA = 25°C)

Pulse Generator

5V, 10MHz, > 1nS

Rise/Fall Time

V = Victim Voltage

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com 1/17/2001

CALIFORNIA MICRO DEVICES

PACT

Filter Insertion Loss (S12, dB),Typical (TA = 25^oC) Representative Sample

ATTENUATION CURVES

S parameters are measured using a Hewlett Packard HP8753C Network Analyzer with a

HP85047A S-parameter Test Set.

1/17/2001 215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

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