MX631DW CMLMICRO [CML Microcircuits], MX631DW Datasheet

no-image

MX631DW

Manufacturer Part Number
MX631DW
Description
LOW VOLTAGE SPM DETECTOR
Manufacturer
CMLMICRO [CML Microcircuits]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MX631DW
Manufacturer:
CML
Quantity:
12 388
Part Number:
MX631DW
Manufacturer:
MX-COM
Quantity:
20 000
Features
• Detects 12 & 16kHz SPM Frequencies
• Low Power (3.0 Volt
• High Speechband Rejection Properties
• Tone-Follower and Packet Mode Outputs
• Applications
Description
Subscriber Pulse Metering (SPM) detector that indicates
the presence of both 12kHz or 16kHz telephone call-
charge frequencies on a telephone line.
input amplitude/sensitivities are component adjustable
to the user's national ‘Must/Must-Not Decode’
specifications via an on-chip input amplifier, while the
12kHz and 16kHz frequency limits are accurately
defined by the use of an external 3.579545MHz
telephone-system Xtal or clock-pulse input.
16kHz performance in the presence of both voice and
noise, can operate from either a single or differential
analog signal input from which it will produce two
© 1997 MX•COM, INC.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
The MX631 is a low-power, system-selectable
Deriving its input directly from the telephone line,
The MX631, which demonstrates high 12kHz and
•Complex and/or Simple Telephone Systems
•Call-Charge/-Logging Systems
XTAL/CLOCK
(12kHz/16kHz)
Figure 1 - Functional Block Diagram
V
V
XTAL
SIGNAL
SIGNAL
AMP OUT
SYSTEM
IN (+)
IN (-)
DD
BIAS
INPUT AMP
+
-
XTAL/CLOCK
OSCILLATOR
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054
MIN
<1.0mA) Operation
+20dB
12kHz/16kHz
LEVEL DETECTOR
CLOCK
OUT
LOW VOLTAGE SPM DETECTOR
All trademarks and service marks are held by their respective companies
individual logic outputs:
circuit, which may be line-powered, is available in 16-pin
plastic DIP and SOIC surface mount packages.
CLOCK IN
DIVIDER
1
SYSTEM
1.
2.
This system (12kHz/16kHz) selectable integrated
32
output producing a “Low” level for the period of a
correct decode and a “High” level for a bad decode
or N
respond and/or de-respond after a cumulative
40ms of good tone (or N
This process will ignore small fluctuations or fades
of a valid frequency input and is available for
N
Processor ‘Wake-Up’, Minimum Tone detection,
OTONE
Tone Follower Output - A 'tone-following' logic
Packet (Cumulative Tone) Mode Output - To
OTONE
SYSTEM
16-Pin SOIC
MX631DW
MEASURE
indication or transient avoidance.
PERIOD
DIVIDERS
CLOCK
.
FOLLOWER
PACKET
LOGIC
LOGIC
TONE
TONE
OTONE
TONE FOLLOWER
PACKET MODE
OUTPUT
OUTPUT
) in any 48ms period.
16-Pin PDIP
V
MX631P
SS
Doc.# 20480087.003

Related parts for MX631DW

MX631DW Summary of contents

Page 1

... MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA LOW VOLTAGE SPM DETECTOR MX631DW 16-Pin SOIC CLOCK CLOCK IN OUT ...

Page 2

Low Voltage SPM Detector Pin Function 1 Xtal/Clock : The input to the on-chip clock oscillator; for use with a 3.579545MHz Xtal in conjunction with the Xtal output (see Figure 2). Circuit components are on-chip. Using this mode of clock ...

Page 3

Low Voltage SPM Detector Application Information XTAL/CLOCK XTAL/CLOCK X 1 For use with a Clock-Pulse Input - Remove Xtal (X1) - Connect Pin 1 to VDD CLOCK OUT - Remove link (Pins 3-4) - Input clock pulses to ...

Page 4

Low Voltage SPM Detector Application Information ...... SIGNAL LEVELS (dB) 0dB ref: 775mVrms © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA 4 All trademarks ...

Page 5

Low Voltage SPM Detector Application Information ...... Input Gain Calculation The input amplifier, with its external circuitry, is provided on-chip to set the sensitivity of the MX631 to conform to the user's national level specification with regard to ‘Must’ and ...

Page 6

Low Voltage SPM Detector Specifications Absolute Maximum Ratings Exceeding the maximum rating can result in device damage. Operation of the device outside the operat- ing limits is not implied. Supply voltage Input voltage at any pin (ref V = 0V) ...

Page 7

Low Voltage SPM Detector Characteristics Notes 1. With adherence to Signal-to-Voice and Signal-to Noise specifications. 2. With Input Amp gain setting: 15.5dB 3. Common Mode SPM and balanced voice signal. 4. Immune to false responses. 5. Immune to false de-responses ...

Page 8

... ALTERNATIVE B PIN LOCATION MARKING PIN Figure7: 16-pin SOIC Mechanical Outline: order as part no. MX631DW A B PIN Figure7: 16-pin PDIP Mechanical Outline: order as part no. MX631P © 1997 MX•COM, INC. www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054 ...

Page 9

CML Microcircuits COMMUNICATION SEMICONDUCTORS In the process of creating a more global image, the three standard product semiconductor companies of CML Microsystems Plc (Consumer Microcircuits Limited (UK), MX-COM, Inc (USA) and CML Microcircuits (Singapore) Pte Ltd) have undergone name changes ...

Related keywords