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2005 California Micro Devices Corp. All rights reserved.
09/27/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
1
CSPEMI200A
4 Channel Headset EMI Filter with ESD Protection
Features
Four channels of EMI filtering
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
Includes 1 channel of ESD-only protection
Greater than 30dB attenuation at 1GHz
+
8kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
+
15kV ESD protection on each channel (HBM)
Supports bipolar signals--ideal for
audio applications
11-bump, 2.046mm X 1.436mm footprint
Chip Scale Package (CSP)
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
Lead-free version available
Applications
EMI filtering and ESD protection for audio ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
Product Description
The CSPEMI200A is a quad low-pass filter array inte-
grating four pi-style filters (C-R-C) that reduce EMI/RFI
emissions while at the same time providing ESD pro-
tection. This device is custom-designed to interface
with the headset port on a cellular telephone, and con-
tains 3 different filter values. Each high quality filter
provides more than 20dB attenuation in the 800-2700
MHz range. These pi-style filters support bidirectional
filtering, controlling EMI both to and from the micro-
phone and speaker elements. They also support bipo-
lar signals, enabling audio signals to pass through
without distortion.
In addition, the CSPEMI200A provides a very high
level of protection for sensitive electronic components
that may be subject to electrostatic discharge (ESD).
The CSPEMI200A can safely dissipate ESD strikes of
+
8kV, the maximum requirement of the IEC 61000-4-2
international standard. Using the MIL-STD-883
(Method 3015) specification for Human Body Model
(HBM) ESD, the device provides protection for contact
discharges to greater than
+
15kV.
The CSPEMI200A is particularly well suited for porta-
ble electronics (e.g., cellular telephones, PDAs, note-
book computers) because of its small package format
and low weight. The CSPEMI200A is available in a
space-saving, low-profile Chip Scale Package with
optional lead-free finishing.
Electrical Schematic
10
100
p
F
100
p
F
100
47pF
47pF
MIC_IN1
B2
A2
A3
A4
B4
C1
C2
C3
C4
B3
ESD Channel
MIC_IN2
SPKR_OUT1
SPKR_OUT2
GND
GND
SPKR_IN2
SPKR_IN1
MIC_OUT2
MIC_OUT1
B1
68
47
p
F
47
p
F
10
100pF
100pF
2005 California Micro Devices Corp. All rights reserved.
2
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
09/27/05
CSPEMI200A
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Note 2: Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
A1
N.B.
No Bump used for orientation / alignment
A2
MIC_IN2
Microphone Input 2 (from microphone)
A3
SPKR_OUT1
Speaker Output 1 (to speaker)
A4
SPKR_OUT2
Speaker Output 2 (to speaker)
B1
MIC_IN1
Microphone Input 1 (from microphone)
B2
ESD1
ESD Protection Input. Provides a channel specifically for ESD protection purposes.
B3
GND
Device Ground
B4
GND
Device Ground
C1
MIC_OUT1
Microphone Output 1 (to audio circuitry)
C2
MIC_OUT2
Microphone Output 2 (to audio circuitry)
C3
SPKR_IN1
Speaker Input 1 (from audio circuitry)
C4
SPKR_IN2
Speaker Input 2 (from audio circuitry)
MIC_IN2
MIC_IN1
SPKR_OUT1 SPKR_OUT2
ESD1
GND
GND
MIC_OUT1 MIC_OUT2 SPKR_IN1 SPKR_IN2
A3
A2
Orientation
Marking
A4
B4
B3
B2
B1
C4
C3
C2
C1
A1
200A
4
3
2
1
C
B
A
Orientation
Marking
(see note 2)
PACKAGE / PINOUT DIAGRAMS
Notes:
TOP VIEW
CSPEMI200A
CSP Package
BOTTOM VIEW
(Bumps Down View)
(Bumps Up View)
2) Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
1) These drawings are not to scale.
PART NUMBERING INFORMATION
Bumps
Package
Standard Finish
Lead-free Finish
2
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
11
CSP
CSPEMI200A
200A
CSPEMI200AG
200A
2005 California Micro Devices Corp. All rights reserved.
09/27/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
CSPEMI200A
Specifications
Note 1: T
A
=25
C unless otherwise specified.
Note 2: ESD applied to input pins with respect to GND, one at a time, pins A2, A3, A4, B1 and B2 only.
Note 3: Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin. For example, if ESD is applied to Pin B1,
then clamping voltage is measured at Pin C1.
Note 4: Unused pins are left open
Note 5: The parameters are guaranteed by design and characterization.
Note 6: Z
SOURCE
=50
, Z
LOAD
=50
.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
Storage Temperature Range
-65 to +150
C
DC Power per Resistor
100
mW
DC Package Power Rating
400
mW
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
Operating Temperature Range
-40 to +85
C
ELECTRICAL OPERATING CHARACTERISTICS
(NOTE 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
R
1
Resistance 1
90
100
110
R
2
Resistance 2
61
68
75
R
3
Resistance 3
9
10
11
C
1
Capacitance 1
38
47
57
pF
C
2
Capacitance 2
80
100
120
pF
I
LEAK
Diode Leakage Current
V
IN
=5.0V
1.0
A
V
SIG
Signal Voltage
Positive Clamp
Negative Clamp
I
LOAD
= 10mA
5
-5
7
-10
15
-15
V
V
V
ESD
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC 61000-4-2
Level 4
Notes 2,4 and 5
15
8
kV
kV
V
CL
Clamping Voltage during ESD Discharge
MIL-STD-883 (Method 3015), 8kV
Positive Transients
Negative Transients
Notes 2,3,4 and 5
+15
-19
V
V
f
C1
Cut-off frequency 1; Note 6
R = 100
, C = 47pF
53
MHz
f
C2
Cut-off frequency 2; Note 6
R = 68
, C = 47pF
61
MHz
f
C3
Cut-off frequency 3; Note 6
R = 10
, C = 100pF
33
MHz
2005 California Micro Devices Corp. All rights reserved.
4
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
09/27/05
CSPEMI200A
Performance Information
Typical Filter Performance (nominal conditions unless specified otherwise)
Figure 1. Microphone 1 Circuit (B1-C1) EMI Filter Performance
Figure 2. Microphone 2 Circuit (A2-C2) EMI Filter Performance
2005 California Micro Devices Corp. All rights reserved.
09/27/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5
CSPEMI200A
Performance Information (Cont'd)
Typical Filter Performance (nominal conditions unless specified otherwise)
Figure 3. Speaker 1 Circuit (A3-C3) EMI Filter Performance
Figure 4. Speaker 2 Circuit (A4-C4) EMI Filter Performance
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