ST EMIF02-MIC03M6 User Manual

2-line IPAD™, EMI filter and ESD protection for microphone

Features

■ EMI symmetrical (I/O) low-pass filter

■ High efficiency in EMI filtering

■ Very low PCB space consumption:

1.0 mm x 1.45 mm

■ Very thin package: 0.6 mm max

■ High efficiency in ESD suppression

■ High reliability offered by monolithic integration

■ High reduction of parasitic elements through

integration and wafer level packaging

■ Lead-free and halogen-free package

Complies with following standards

■ IEC 61000-4-2 level 4, input and output pins

■ IEC 61000-4-2 level 4 requirements

– 8 kV (contact discharge)

or

– 15 kV (air discharge)

EMIF02-MIC03M6

Pin 1

Micro QFN 6 leads

1.45 mm x 1.00 mm
(bottom view)

Figure 1. Pin configuration (top view)

MIC

GND GND

MIC

R in

L in

1

2

3

MIC

6

R out

5

MIC

4

L out

Application

■ Mobile phones

Description

The EMIF02-MIC03M6 is a 2-line highly
integrated device designed to suppress EMI/RFI
noise in all systems exposed to electromagnetic
interference.

This filter includes ESD protection circuitry, which
prevents damage to the application when
subjected to ESD surges up to 8 kV on all pins.

May 2011 Doc ID 14448 Rev 2 1/11

Figure 2. Basic cell configuration

Low-pass filter

Input

GND GND GND

R = 68 , C

TM: IPAD is a trademark of STMicroelectronics

line

= 45 pF typ.Ω

Output

www.st.com

11

Characteristics EMIF02-MIC03M6

1 Characteristics

Table 1. Absolute ratings

(1)

Symbol Parameter Value Unit

V

T

T

1. limiting values at T

2. According to IEC61000-4-2 test conditions with ungrounded table top equipment set-up, PCB board on insulated plane
(dimensions 25 x 25 mm

Table 2. Electrical characteristics (T

ESD discharge IEC61000-4-2 contact discharge

PP

ESD discharge IEC61000-4-2 air discharge

T

Junction temperature 125 °C

j

Operating temperature range -40 to + 85 °C

op

Storage temperature range -55 to +150 °C

stg

= 25 °C unless otherwise specified

amb

2

), 2 serial resistors of 470 kΩ to GND reference plane

amb

(2)

= 25 °C)

8

15

Symbol Parameter

I

I

PP

I

R

I

RM

VRMV

I

RM

I

R

I

PP

VBRV

RM

V

V

CL

BR

RM

RM

CL

PP

I/O

line

Breakdown voltage

Leakage current @ V

RM

Stand-off voltage

Clamping voltage

Dynamic resistance

d

Peak pulse current

Series resistance between Input & Output

Input capacitance per line

V

CL

BR

V

I

V

V

R

I

R

C

Symbol Test conditions Min. Typ. Max. Unit

BR

RM

I/O

IR = 1 mA 6 8 V

VRM = 3 V per line 500 nA

Tolerance ± 20% 68 Ω

(1)

VR = 0 V, F = 1 MHz, V

= 30 mV 45 pF

OSC

V

I

R

C

line

1. Tolerance ± 20%

kV

2/11 Doc ID 14448 Rev 2

EMIF02-MIC03M6 Characteristics

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

(MIC R / MIC L)

dB

0.00

-5.00

-10.00

-15.00

-20.00

-25.00

-30.00

-35.00

-40.00

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

F (Hz)

Figure 5. ESD response to IEC 61000-4-2

(+8 kV contact discharge) on MIC
lines

Input

vi = 20 V/d

Figure 6. ESD response to IEC 61000-4-2

dB

0.00

0.00

-10.00

-10.00

-20.00

-20.00

-30.00

-30.00

-40.00

-40.00

-50.00

-50.00

-60.00

-60.00

-70.00

-70.00

-80.00

-80.00

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

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

L

R-L Xtalk L-R

F (Hz)

(-8 kV contact discharge) on MIC
lines

Input

vi = 20 V/d

Output

vo = 10 V/d

20 ns/d

vo = 10 V/d

Output

20 ns/d

Doc ID 14448 Rev 2 3/11

Ordering information scheme EMIF02-MIC03M6

2 Ordering information scheme

Figure 7. Ordering information scheme

EMIF yy - xxx zz Mx

EMI Filter

Number of lines

Information

xxx = application
zz = version

Package

Mx = Micro QFN x leads

4/11 Doc ID 14448 Rev 2