CSPEMI205 CALMIRCO | Alldatasheet
Document overview
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Technical content
Features
- Three channels of EMI filtering, two for earpiece speakers and one for a microphone Pi-style EMI filters in a capacitor-resistor-capacitor (C-R-C) network Chip Scale Package features extremely low para- sitic inductance for optimum filter performance Greater than 30dB relative attenuation in the 800- 2700MHz range +8kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge) +15kV ESD protection on each channel (HBM) 8-bump, 1.41mm X 1.45mm footprint Chip Scale Package (CSP) Lead-free version available
Applications
EMI filtering and ESD protection for headset micro- phone and speaker Cellular / Mobile Phones Notebooks and Personal Computers Handheld PCs / PDAs / Tablets Wireless Handsets Digital Camcorders Product Description The CSPEMI205 is a low-pass filter array integrating three pi-style filters (C-R-C) that reduce EMI/RFI emis- sions while at the same time providing ESD protection. This device is custom-designed to interface with the headset port on a cellular telephone, and contains two different filter values. Each high quality filter provides more than 30dB attenuation in the 800-2700 MHz range. These pi-style filters support bidirectional filter- ing, controlling EMI both to and from the microphone and speaker elements. They also support bipolar sig- nals, enabling audio signals to pass through without distortion. In addition, the C SPEMI205 provides a very high level of protection for sensitive electronic components that may be subject to electrostatic discharge (ESD). The input pins are designed and characterized to safely dis- sipate 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 protec- tion for contact discharges to greater than +15kV . The CSPEMI 205 is particularly well suited for portable electronics (e.g., cellular telephones, PDAs, notebook computers) because of its small package format and low weight. The CSPEMI205 is available in a space- saving, low-profile Chip Scale Package with optional lead-free finishing. Electrical Schematic 10 Ω 100pF 100pF Earpiece 1 C3 B2GND GND 10 Ω Input Earpiece 2 Input Earpiece 1 Output Earpiece 2 Output 100pF 100pF 68 Ω 47pF 47pF Microphone C5A5 Input Microphone Output
© 2003 California Micro Devices Corp. All rights reserved. CSPEMI205
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 EAR1_IN Earpiece Input 1 (from audio circuitry) A3 EAR2_IN Earpiece Input 2 (from audio circuitry) A5 MIC_IN Microphone Input (from microphone) B2 GND Device Ground B4 GND Device Ground C1 EAR1_OUT Earpiece Output 1 (to earpiece) C3 EAR2_OUT Earpiece Output 2 (to earpiece) C5 MIC_OUT Microphone Output (to audio circuitry) MIC_OUT EAR2_OUT EAR1_OUT GND GND MIC_IN EAR2_IN EAR1_IN C3C5 Orientation Marking B2B4 A1A3A5 AF 53142 C B A Orientation Marking (se note 2) PACKAGE / PINOUT DIAGRAMS Note: TOP VIEW CSPEMI205 BOTTOM VIEW (Bumps Down View) (Bumps Up View) 1) These drawings are not to scale. 2) Lead-free devices are specified by using a " +" character for the top side orientation mark. PART NUMBERING INFORMATION Bumps Package Standard Finish Lead-free Finish2 Ordering Part Number1 Part Marking Ordering Part Number1 Part Marking
8 CSP CSPEMI205 AF CSPEMI205G AF
© 2003 California Micro Devices Corp. All rights reserved. CSPEMI205 Specifications Note 1: T A=25°C unless otherwise specified. Note 2: ESD applied to input and output pins with respect to GND, one at a time. 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 Pi n A1, then clamping voltage is measured at Pin C1. Note 4: Unused pins are left open Note 5: The parameters are guaranteed by design. Note 6: Z SOURCE=50Ω, ZLOAD=50Ω ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS Storage T emperature Range -65 to +150 °C DC Power per Resistor 100 mW STANDARD OPERATING CONDITIONS PARAMETER RATING UNITS Operating Temperature Range -40 to +85 °C ELECTRICAL OPERATING CHARACTERISTICS1 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS R1 Resistance 9 10 11 Ω R2 Resistance 54 68 75 Ω C1 Capacitance 80 100 120 pF C2 Capacitance 38 47 57 pF ILEAK Diode Leakage Current V IN=5.0V 1.0 µA VSIG Signal Voltage Positive Clamp Negative Clamp I LOAD = 10mA -10 -15 V V VESD 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 kV kV VCL 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 fC1 Cut-off frequency 1; Note 6 R = 10 Ω, C = 100pF 34 MHz fC2 Cut-off frequency 2; Note 6 R = 68 Ω, C = 47pF 63 MHz
© 2003 California Micro Devices Corp. All rights reserved. Figure 3. Microphone Circuit (A5-C5) EMI Filter Performance
© 2003 California Micro Devices Corp. All rights reserved. Figure 7. Tape and Reel Mechanical Data