PRELIMINARY
CM1470
Praetorian™
4-, 6- and 8-Channel Series Inductor Networks
Features
•
•
•
•
•
•
•
•
•
Ultra-low capacitance filter results in excellent sig-
nal integrity
4, 6 and 8 channels of EMI filtering
0.4mm pitch Chip Scale Package (CSP)
±2kV HBM – MIL-STD883 (Method 3015)
10 bump, 2.030mm x 0.836mm footprint CSP for
CM1470-04
14 bump, 2.830mm x 0.836mm footprint CSP for
CM1470-06
18 bump, 3.630mm x 0.836mm footprint CSP for
CM1470-08
OptiGuard™
Coating for improved reliability at
assembly
Lead-free finishing
Product Description
CMD’s CM1470 is a family of series inductor networks
providing EMI filtering for applications that are
sensitive to signal integrity such as high-resolution
camera interfaces. The CM1470 is configured in 4, 6
and 8 channel formats. Each channel is implemented
as a single inductor element where the component
value is 17nH. The CM1470 will help suppress EMI
radiation to the external environment. The parts
integrate ESD diodes on every pin to provide
protection during the manufacturing process when the
device is placed on the PCB from a pick-and-place
machine. The ESD protection diodes safely dissipate
ESD strikes of
±2kV,
per the MIL-STD-883 (Method
3015) specification for Human Body Model (HBM)
ESD.
This device is particularly well suited for portable
electronics (e.g. wireless handsets, PDAs) because of
its small package format and easy-to-use pin
assignments. In particular, the CM1470 is ideal for EMI
filtering data and control lines in camera modules
where it is placed near the transmission source on a
flexible PCB. The CM1470 level of performance (i.e.
cutoff frequency and attenuation level) can be tuned
with external signal trace capacitance.
The CM1470 incorporates
OptiGuard™
which results in
improved reliability at assembly. The CM1470 is avail-
able in a space-saving, low-profile Chip Scale Package
with lead-free finishing.
Applications
•
•
•
•
Data and control lines for high resolution camera
modules in phones
LCD modules
Mobile handsets
High-speed data I/O lines
Electrical Schematic
17nH
A1 - An
3.2pF
3.2pF
B2 - B(n+1)
A(n+1)
B1
1 of n Channels (n = 4, 6, 8)
© 2006 California Micro Devices Corp. All rights reserved.
03/15/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
1
PRELIMINARY
CM1470
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC current per Inductor
RATING
-65 to +150
30
UNITS
°C
mA
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
(NOTE 1
)
SYMBOL
L
TOT
R
C
TOT
C
1
V
SIG
PARAMETER
Total Channel Inductance
DC Channel Resistance
Total Channel Capacitance (C
1
x 2)
Capacitance
Signal Voltage
Positive Clamp
Negative Clamp
Stand-off Voltage
Diode Leakage Current
Signal Clamp Voltage
Positive Clamp
Negative Clamp
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC 61000-4-2
Level 4
Cut-off frequency
Z
SOURCE
= 50Ω, Z
LOAD
= 50Ω
2.5V dc; 1MHz, 30mV ac
2.5V dc; 1MHz, 30mV ac
I
LOAD
= 10mA
5
-15
CONDITIONS
MIN
TYP
17
10
6.4
3.2
7
-10
6.0
0.1
5.6
-1.5
±4
±2
850
6.8
-0.8
1.0
9.0
-0.4
15
-5
MAX
UNITS
nH
Ω
pF
pF
V
V
V
μA
V
V
kV
kV
MHz
V
ST
I
LEAK
V
SIG
I = 10μA
V
IN
=
+
3.3V
I
LOAD
= 10mA
I
LOAD
= -10mA
Notes 2, 3, 4 and 5
V
ESD
f
C
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 Pin A1,
then clamping voltage is measured at Pin B2.
Note 4: Unused pins are left open.
Note 5: These parameters are guaranteed by design and characterization.
© 2006 California Micro Devices Corp. All rights reserved.
4
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
03/15/06
微控制器 MCU
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