ST EMIF08-1502M16 User Manual

low capacitance EMI filter and ESD protection in micro QFN package

Features

EMIF08-1502M16

8-line IPAD™

■ EMI (I/O) low-pass filter

■ High efficiency in EMI filtering:

– Greater than 30 dB attenuation at

frequencies from 900 MHz to 1.8 GHz

■ Cut-off frequency: 300 MHz

■ Very low PCB space consumption:

3.3 mm x 1.5 mm

■ Very thin package: 0.6 mm max.

■ High efficiency in ESD suppression on inputs

pins (IEC 61000-4-2 level 4)

■ High reliability offered by monolithic integration

■ High reduction of parasitic elements through

integration

■ Lead-free package

Complies with following standards:

■ IEC 61000-4-2 level 4 input pins

– 15 kV (air discharge) – 8 kV (contact discharge)

■ MIL STD 883G - Method 3015-7 Class 3A

(all pins)

Applications

Where EMI filtering in ESD sensitive equipment is required:

■ LCD and camera for Mobile phones

■ Computers and printers

■ Communication systems

■ MCU boards

1

Micro QFN 16L 3.3 mm x 1.5 mm

(bottom view)

Figure 1. Basic cell configuration

Input 1

Typical line capacitance = 14 pF typ. @ 2.5 V

170 Ω

Output 1

Description

The EMIF08-1502M16 is an 8-line, highly integrated device designed to suppress EMI/RFI noise in all systems exposed to electromagnetic interference.

This filter includes an ESD protection circuitry, which prevents damage to the application when subjected to ESD surges up to 15 kV on the input pins.

TM: IPAD is a trademark of STMicroelectronics

February 2008 Rev 2 1/10

www.st.com

Characteristics EMIF08-1502M16

1 Characteristics

Figure 2. Pin configuration (top view)

Pin 1

Input 1

Input 21

Pin 2

Input 3

Pin 3

Input 4

Pin 4

Input 5

Pin 5

Input 6

Pin 6

Input 7

Pin 7

Input 8

Pin 8

Table 1. Absolute ratings (limiting values)

Output 1

Output 2

Output 3

Output 4

Output 5

Output 6

Output 7

Output 8

Pin 16

Pin 15

Pin 14

Pin 13

Pin 12

Pin 11

Pin 10

Pin 9

Symbol Parameter Value Unit

ESD IEC 61000-4-2, air discharge on input pins

V

ESD IEC 61000-4-2, contact discharge on input pins

PP

ESD IEC 61000-4-2, contact discharge on output pins

T

Maximum junction temperature 125 °C

j

Operating temperature range - 40 to + 85 °C

op

Storage temperature range - 55 to + 150 °C

stg

2/10

15

8

kV

4

EMIF08-1502M16 Characteristics

Table 2. Electrical characteristics (T

Symbol Parameter

V

BR

I

RM

V

RM

V

CL

R

d

I

PP

R

I/O

C

line

amb

= 25 °C)

Breakdown voltage

Leakage current @ V

RM

Stand-off voltage

Clamping voltage

Dynamic resistance

Peak pulse current

Series resistance between Input & Output

Input capacitance per line

I

F

V

BR

V

RM

CL

V

F

I

RM

I

R

I

PP

V

Symbol Test conditions Min. Typ. Max. Unit

V

BR

V

F

I

RM

R

I/O

C

line

IR = 1 mA 6 8 10 V

IF = 10 mA 0.5 1.0 1.5 V

VRM = 3 V per line 100 nA

Tolerance ± 10% 153 170 187 Ω

V

= 2.5 V dc, V

LINE

= 30 mV, F = 1 MHz 12 14 16.5 pF

OSC

Figure 3. S21 attenuation measurement Figure 4. Analog cross talk measurements

0.00

- 15.00

-

- 30.00

-

- 45.00

-

dB

F (Hz)

1.0M 3.0M 10.0M 30.0M 100.0M 300.0M 1.0G 3.0G

dB

0.00

-10.00

-20.00

-30.00

-40.00

-50.00

-60.00

-70.00

-80.00

-90.00

-100.00

100.0k 1.0M 10.0M 100.0M 1.0G

F (Hz)

3/10