CALIFORNIA MICRO DEVICES
PACT
P/ACTIVE EMI/RFI T FILTER
Features
鈥?8 Filter Channels in Miniature QSOP Package
鈥?Ideal Frequency Response to Over 3 GHz
鈥?Low In-Band Insertion Loss Maintains Signal
Integrity
鈥?Low Distortion Low Cross Talk
鈥?ESD Protected
Pin Assignments
1
2
3
4
5
6
7
8
9
10
11
12
GND
Filt1
Filt2
Filt3
GND
Filt4
Filt5
GND
Filt6
Filt7
Filt8
GND
GND
Filt1
Filt2
Filt3
GND
Filt4
Filt5
GND
Filt6
Filt7
Filt8
GND
24
23
22
21
20
19
18
17
16
15
14
13
Applications
鈥?EMI/RFI Filter
鈥?Low Pass Filter
鈥?SCSI Port Filter
鈥?LCD Panel Display Filter
Product Description
Note: CAMD鈥檚 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鈥檚 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 鹵6V. CAMD鈥檚 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.
STANDARD SPECIFICATIONS
Absolute Tolerance (R)
Absolute Tolerance (C)
Absolute Tolerance (C=15pF)
Operating Temperature Range
Power Rating/Resistor
Leakage Current
Crosstalk (see Text Circuit)
ESD Clamp
Positive Clamp
Negative Clamp
ESD Protection
Storage Temperature
Package Power Rating
漏 2000 California Micro Devices Corp. All rights reserved.
1/17/2001
SCHEMATIC CONFIGURATION
24
23
22
21
20
19
18
17
16
15
14
13
鹵10%
鹵10%
鹵10%
0
藲
C to 70
藲
C
100mW
1碌A @ 25
藲
C MAX
< 5% (typical)
> 6V
< 鈥?V
> 2KV
鈥?0
藲
C to 150
藲
C
1.00W, MAX
C1100600
1
2
3
4
5
6
7
8
9
10
11
12
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
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