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
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.
Applications
•
•
•
•
•
•
•
EMI filtering and ESD protection for audio ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
Electrical Schematic
MIC_IN1
B1
100Ω
C1
MIC_OUT1
SPKR_IN1
C3
100pF
10Ω
A3
SPKR_OUT1
100pF
47pF
47pF
MIC_IN2
A2
68Ω
C2
MIC_OUT2
SPKR_IN2
C4
100pF
10Ω
A4
SPKR_OUT2
100pF
GND
GND
B3
B4
47pF
47pF
B2
ESD Channel
© 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
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
(Bumps Down View)
Orientation
Marking
(see note 2)
BOTTOM VIEW
(Bumps Up View)
MIC_OUT1 MIC_OUT2 SPKR_IN1 SPKR_IN2
1
A
B
C
2
3
4
C1
C2
ESD1
C3
GND
C4
GND
200A
MIC_IN1
B1
Orientation
Marking
B2
A2
B3
A3
B4
A4
MIC_IN2 SPKR_OUT1 SPKR_OUT2
A1
CSPEMI200A
Notes:
CSP Package
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
PIN DESCRIPTIONS
PIN
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
NAME
N.B.
MIC_IN2
SPKR_OUT1
SPKR_OUT2
MIC_IN1
ESD1
GND
GND
MIC_OUT1
MIC_OUT2
SPKR_IN1
SPKR_IN2
DESCRIPTION
No Bump – used for orientation / alignment
Microphone Input 2 (from microphone)
Speaker Output 1 (to speaker)
Speaker Output 2 (to speaker)
Microphone Input 1 (from microphone)
ESD Protection Input. Provides a channel specifically for ESD protection purposes.
Device Ground
Device Ground
Microphone Output 1 (to audio circuitry)
Microphone Output 2 (to audio circuitry)
Speaker Input 1 (from audio circuitry)
Speaker Input 2 (from audio circuitry)
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Bumps
11
Package
CSP
Ordering Part
Number
1
CSPEMI200A
Part Marking
200A
Lead-free Finish
2
Ordering Part
Number
1
CSPEMI200AG
Part Marking
200A
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.
© 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
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC Power per Resistor
DC Package Power Rating
RATING
-65 to +150
100
400
UNITS
°C
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
(NOTE 1)
SYMBOL
R
1
R
2
R
3
C
1
C
2
I
LEAK
V
SIG
PARAMETER
Resistance 1
Resistance 2
Resistance 3
Capacitance 1
Capacitance 2
Diode Leakage Current
Signal Voltage
Positive Clamp
Negative Clamp
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC 61000-4-2
Level 4
Clamping Voltage during ESD Discharge
MIL-STD-883 (Method 3015), 8kV
Positive Transients
Negative Transients
Cut-off frequency 1; Note 6
Cut-off frequency 2; Note 6
Cut-off frequency 3; Note 6
V
IN
=5.0V
I
LOAD
= 10mA
5
-5
±15
±8
Notes 2,3,4 and 5
+15
-19
R = 100Ω, C = 47pF
R = 68Ω, C = 47pF
R = 10Ω, C = 100pF
53
61
33
V
V
MHz
MHz
MHz
7
-10
CONDITIONS
MIN
90
61
9
38
80
TYP
100
68
10
47
100
MAX
110
75
11
57
120
1.0
15
-15
UNITS
Ω
Ω
Ω
pF
pF
μA
V
V
kV
kV
V
ESD
Notes 2,4 and 5
V
CL
f
C1
f
C2
f
C3
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
=50Ω, Z
LOAD
=50Ω.
© 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
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.
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 (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
© 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
京公网安备 11010802033920号
EEWORLD
