Praetorian III® EMI Filter for T-Flash/MicroSD Interfaces CM1624 Features Applications • • • • • • • • • • • Bidirectional EMI/RFI filtering and line termination with integrated ESD protection Provides ESD protection to IEC61000-4-2: • ±15kV contact discharge TVS working voltage: 5V Termination resistors: 40Ω Pull-up resistors: 25kΩ Typical capacitance per line: 12pF (VIN= 2.5V) Protection and termination for six lines + Vcc Solid-state technology ©2010 SCILLC. All rights reserved. May 2010 – Rev. 2 T-Flash / MicroSD interfaces MMC interfaces CDMA, GSM, 3G cell phones Mechanical Characteristics • • • • • 0.40mm, uDFN 16-pin package RoHS/WEEE compliance, lead-free finish Nominal dimensions: 3.30 x 1.35 x 0.50mm Pitch: 0.4mm Pin-lead finish: NiPd Publication Order Number: CM1624/D CM1624 Description The CM1624 is a combination EMI filter and line termination device with integrated TVS diodes for use on Multimedia Card interfaces. This state-of-the-art device utilizes solid-state, silicon-avalanche technology for superior clamping performance and DC electrical characteristics. The CM1624 has been optimized for protection of T-Flash/MicroSD interfaces in cellular phones and other portable electronics. The CM1624 consists of six circuits that includes series impedance matching resistors and pull-up resistors as required by the SD specification. TVS diodes are included on each line for ESD protection. An additional TVS diode connection is included for protection of the voltage (Vcc) bus. Termination resistor value of 40Ω is provided on the SDData0, SDData1, SDData2, SDData3, CMD, and CLK lines. Pull-up resistors of 25kΩ are included on the SDData0, SDData1, SDData2, SDData3 and CMD lines, as well. These may be configured for devices operating in SD or SPI mode. The TVS diodes provide effective suppression of ESD voltages in excess of ±15kV (contact discharge) per IEC 61000-4-2, level 4. The CM1624 is in a 16-pin, RoHS/WEEE compliant, UDFN 16-pin package. It measures 3.30 x 1.35 x 0.50mm. The leads are spaced at a pitch of 0.4mm and are finished with lead-free NiPd. Package/Pin Information Top View SDData1 SDData0 1 Data1 Data0 SDCLK CLK ESD1 ESD1 ESD3 VCC SDCMD CMD SDData3 Data3 SDData2 Data2 Rev. 2 | Page 2 of 10 | www.onsemi.com CM1624 PIN DESCRIPTIONS Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND PAD Name SDData1 SDData0 SDCLK ESD1 ESD3 SDCMD SDData3 SDData2 Data2 Data3 CMD VCC ESD1 CLK Data0 Data1 GND Description Data line #1 input/output with pull-up resistor Data line #0 input/output with pull-up resistor Clock line Input/Output Single ESD Single ESD Command Line Input/Output Data line #3 input/output with pull-up resistor Data line #2 input/output with pull-up resistor Data line #2 input/output with pull-up resistor Data line #3 input/output with pull-up resistor Command Line Input/Output Power Supply ESD Protection Single ESD Clock line Input/Output Data line #0 input/output with pull-up resistor Data line #1 input/output with pull-up resistor Ground return to shield Ordering Information PART NUMBERING INFORMATION (Note 1) PIN 16 PACKAGE uDFN-16 (0.40mm) LEAD-FREE FINISH CM1624 -08DE Note 1: Parts are shipped in Tape and Reel form unless otherwise specified. Note 2: (x) = single character date code. Rev. 2 | Page 3 of 10 | www.onsemi.com Part Marking 1624(x) (Note 2) CM1624 Specifications ABSOLUTE MAXIMUM RATINGS* PARAMETER Operating Temperature Range Storage Temperature Range RATING -40 to +85 -55 to +150 UNITS °C °C *Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL PARAMETER RCH Channel Resistance (R1 to R6) LCH Channel Inductance C Capacitance per Channel CONDITIONS MIN TYP MAX UNITS 34 40 46 Ω 20 VIN = 0V; 1MHz; 30mVRMS 16 Pull-up Resistance (R7 to R11) ILEAK Diode Leakage Current per Channel VIN = 3V VSIG Signal Clamp Voltage Positive Clamp Negative Clamp ILOAD = 10mA ILOAD = -10mA VESD fC 21 ESD Protection - Peak Discharge Voltage at any channel input, in system: a) Contact discharge per IEC 61000-4-2 Standard and b) Air discharge per IEC 61000-4-2 Standard Cut-off frequency ZSOURCE = 50Ω, ZLOAD = 50Ω 5.6 -1.5 Rev. 2 | Page 4 of 10 | www.onsemi.com pF pF 25 29 kΩ 0.1 0.5 μA 6.8 -0.8 9.0 -0.4 V V ±15 kV ±15 kV 300 Note 1: All parameters specified at TA = 25°C unless otherwise noted. 24 12 VIN = 2.5V; 1MHz; 30mVRMS; RUP 20 nH MHz CM1624 Performance Information Typical Filter Performance (nominal conditions unless specified otherwise, 50Ω Environment) Figure 1. Insertion Loss VS. Frequency (Pins 1 and 16) Figure 2. Insertion Loss VS. Frequency (Pins 2 and 15) Rev. 2 | Page 5 of 10 | www.onsemi.com CM1624 Performance Information (cont’d) Typical Filter Performance (nominal conditions unless specified otherwise, 50Ω Environment) Figure 3. Insertion Loss VS. Frequency (Pins 3 and 14) Figure 4. Insertion Loss VS. Frequency (Pins 6 and 11) Rev. 2 | Page 6 of 10 | www.onsemi.com CM1624 Performance Information (cont’d) Typical Filter Performance (nominal conditions unless specified otherwise, 50Ω Environment) Figure 5. Insertion Loss VS. Frequency (Pins 7 and 10) Figure 6. Insertion Loss VS. Frequency (Pins 8 and 9) Rev. 2 | Page 7 of 10 | www.onsemi.com CM1624 Mechanical Details uDFN-16 Mechanical Specifications, 0.4mm The 16-lead, 0.4mm pitch uDFN package dimensions are presented below. PACKAGE DIMENSIONS Package uDFN JEDEC No. MO-229C* Leads 16 Millimeters Inches Dim. Min Nom Max Min Nom Max A 0.45 0.50 0.55 0.018 0.020 0.022 A1 0.00 0.02 0.05 0.000 0.001 0.002 0.127 REF A3 0.005 REF b 0.15 0.20 0.25 0.006 0.008 0.010 D 3.20 3.30 3.40 0.126 0.130 0.134 D2 2.70 2.80 2.90 0.106 0.110 0.114 E 1.25 1.35 1.45 0.049 0.053 0.057 E2 0.30 0.40 0.50 0.012 0.016 0.020 e 0.40 BSC 0.016 BSC K 0.22 REF 0.009 REF L # per tape and reel 0.15 0.25 0.35 0.006 0.010 0.014 3000 pieces Controlling dimension: millimeters Dimensions for 16-Lead, 0.4mm pitch uDFN package * This package is compliant with JEDEC standard MO-229C with the exception of the D, D2, E, E2, K and L dimensions as called out in the table above. Rev. 2 | Page 8 of 10 | www.onsemi.com CM1624 Tape and Reel Specifications PART NUMBER PACKAGE SIZE (mm) POCKET SIZE (mm) B0 X A0 X K0 TAPE WIDTH W REEL DIAMETER QTY PER REEL P0 P1 CM1624 -08DE 3.30 X 1.35 X 0.50 3.50 X 1.55 X 0.70 12mm 178mm (7") 3000 4mm 4mm Rev. 2 | Page 9 of 10 | www.onsemi.com CM1624 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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