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CPC5710N

P1-P3P4-P6P7-P9P10-P10
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5710N
R03 www.ixysic.com 7
3. Applications
3.1 Line-In-Use (LIU) and Line Polarity Detector
This circuit performs two phone line interface
functions, LIU and line polarity detection. The LIU
output is logic high if the tip to ring voltage is less than
approximately 17V. This will occur whenever a parallel
device on the line such as a telephone or FAX is taken
off hook. This circuit can also be used to detect for the
presence or loss of battery.
The Polarity output indicates the polarity of the phone
line. Whenever tip is positive with respect to ring,
Polarity out will be a logic high.
Figure 4. LIU and Polarity Detection Application Circuit
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5710N
8 www.ixysic.com R03
3.2 Non-Intrusive Line Monitoring, Display Feature (Caller ID) Signal
Reception, and Ringing Detection Application
This application uses the logic input LIN/CMP to select
between ringing detection or buffering display feature
(caller-ID) and voice signals. Note the AC coupling of
the tip and ring signals.
With this circuit, setting LIN
/CMP to a logic high
enables the ringing detector. After a valid ringing
period, configure LIN
/CMP with a logic low to couple
the audio frequency signal to the output pins.
Please see “Detector Considerations” on page 5 for more
information on ringing detection.
Figure 5. Non-Intrusive Line Monitoring, Display Feature (Caller ID) Signal Reception, and Ringing
Detection Application Circuit
3.2.1 Frequency Response
The blocking capacitors used in this application circuit
affect the frequency response of the system. With the
components shown, response rolls off 3dB @ 166Hz.
Other values can be used for different response
characteristics.
3.3 Regulatory Issues
Component sizing and value recommendations shown
in the application circuits above will need to be
reviewed with regard to the regulatory and safety
requirements for each particular application.
RINGING DET
Display Feature Output
V = V at 500 Hz
OUT IN
3.3 or 5 V
U1 CPC5710
R1-4
1.8 MΩ
C1,2
220 pF
R5
1.5M
0603
Ω
TIP
RING
From
Control
Logic
Unless noted otherwise:
1/8W,All resistors are 1%, 1206.
V
DD
50kΩ
Switch shown
in Detector Mode
IN+
IN-
LIN/CMP
V
DD
V
DD
V
DD
V
SS
LINOUT+
LINOUT-
+
+
-
-
-
+
1.625 V
1.25 V
2 V
0 V
A=6
V
3
6
7
1
2
5
4
GND
8
GND
+
-
+
-
R1
C1
R2
R3
R4
C2
CMPOUT
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5710N
R03 www.ixysic.com 9
4. Manufacturing Information
4.1 Moisture Sensitivity
All plastic encapsulated semiconductor packages are susceptible to moisture ingression. IXYS Integrated
Circuits Division classified all of its plastic encapsulated devices for moisture sensitivity according to the
latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the time of product
evaluation. We test all of our products to the maximum conditions set forth in the standard, and guarantee
proper operation of our devices when handled according to the limitations and information in that standard as well as
to any limitations set forth in the information or standards referenced below.
Failure to adhere to the warnings or limitations as established by the listed specifications could result in reduced
product performance, reduction of operable life, and/or reduction of overall reliability.
This product carries a Moisture Sensitivity Level (MSL) rating as shown below, and should be handled according to
the requirements of the latest version of the joint industry standard IPC/JEDEC J-STD-033.
4.2 ESD Sensitivity
This product is ESD Sensitive, and should be handled according to the industry standard
JESD-625.
4.3 Reflow Profile
This product has a maximum body temperature and time rating as shown below. All other guidelines of
J-STD-020 must be observed.
4.4 Board Wash
IXYS Integrated Circuits Division recommends the use of no-clean flux formulations. However, board washing to
remove flux residue is acceptable, and the use of a short drying bake may be necessary. Chlorine-based or
Fluorine-based solvents or fluxes should not be used. Cleaning methods that employ ultrasonic energy should not be
used.
Note: The CPC5710N branding (package imprinting) leaves off the last character of the part number, the letter “N,”
due to package space limitations.
Device Moisture Sensitivity Level (MSL) Rating
CPC5710N MSL 1
Device Maximum Temperature x Time
CPC5710N 260°C for 30 seconds
e
3
Pb
P1-P3P4-P6P7-P9P10-P10

CPC5710N

Mfr. #:
Buy CPC5710N
Manufacturer:
IXYS Integrated Circuits
Description:
Communication ICs - Various Phone Line Monitor
Lifecycle:
New from this manufacturer.
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