NMF3000 Datasheet, PDF (1/10 Pages) ON Semiconductor – Dual-Stage, Differential Lines Filter

NMF3000, NMF3010
Dual−Stage, Differential
Lines Filter with ESD
Protection
The NMF3000 and the NMF3010 are a dual−stage, differential line
ESD and filtering protection scheme for input signals into portable
devices. The NMF3000 is the first stage and is located at or very near
to the interface to the outside world. It provides the high−level ESD
protection as well as the initial filtering of incoming audio signals. The
NMF3010 is the second stage and provides additional signal filtering.
This second stage can be placed some distance away from the first
stage to allow for effective filtering across extended distances.
Features
• Dual Filtering Lines for 2−Channels or Differential Transmission
• Separate Power and Analog Grounds for ESD Protection and
Filtering Circuitry
• V_CC Input Pin on First Stage to Set Microphone DC Bias
• IEC 61000−4−2 Grade ±15 kV Contact ESD Protection on the Inputs,
V_CC, and Between Power and Analog Grounds
• IEC 61000−4−2 Level 1 ESD protection on All Other Pin−to−Pin
Combinations
• These are Pb−Free Devices*
http://onsemi.com
A1
9 Bump Flip−Chip
CASE 499AE
A1
6 Bump Flip−Chip
CASE 499AF
MARKING
ÇÇ^DIAGRAMS
A1
NMF
3000
ALYW
ÈÈ _A1
ÈÈ^NIO
ALYW
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
Incoming
Audio
Signals
V_CC
NMF3000FCT1G
Microphone
1st
Stage
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
NMF3010FCT1G
C
2nd
Stage
C
Audio
Amplifier
Figure 1. System Diagram
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2004
1
March, 2004 − Rev. 1
Publication Order Number:
NMF3000/D