TELECOM Ag2120 V2.0October 2002 Advance data Sheet FULL
|
|
|
Top Searches for this datasheet
Silver
TELECOM
Ag2120
V2.0October 2002 Advance data Sheet
FULLY FEATURED
highly featured PSTN Interface (COIC, FXO, DAA, Trunk Interface) single 12mm high device. +3.3V supply. Transformer isolation providing high common mode rejection (CMRR) un-grounded systems. Highly integrated with board loop switch integral diode bridge. Loop start circuit, ringing detect loop current detection. Parallel phone detect. Tip-ring polarity reversal detect (for Caller Line remote metering) on-hook reception. Meets requirements EN60950/UL1950, Pt68. cost power cross protection. Programmable d.c. mask, line network impedances. Silver Telecom "design-in" assistance.
RING
TRUNK
Control Supervision
DESCRIPTION
Ag2120 self-contained highly integrated PSTN Interface Circuit single Module. addition features listed, Ag2120 allows flexible programming many functions, including voltage mask impedances. Ag2120 meets international safety regulatory requirements. device requires minimum external components been specified ease use, reduce time market. Ag2120 designed applications, including those where there high level common mode interference, such PABX, long loop applications systems without ground.
Silver Telecom 2002
V2.0 October 2002 Advance Data Sheet
Ag2120
Ordering Information
Ag2120D Ag2120S Fully featured Trunk package Fully featured Trunk package
Ag2120
Silver TELECOM
Figure Ag2120D Packaging Format
Ag2120
Silver
Figure Ag2120S Packaging Format
Power Management Wire Converter
Ring
Line Termination Loop Switch
Vref
Supervision
Anode
Gate
Cathode
Figure Functional Block Diagram
Silver Telecom 2002 Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Description Pin-Out Name RING CATHODE ANODE GATE VOUT VREF Description Tip. Connects subscriber line Tip. Ring. Connects subscriber line Ring. Cathode. power cross protection connect protection device cathode. Anode. power cross protection connect protection device anode. Mask resistor connected between this adjust d.c. characteristics termination. Mask resistor connected between this adjust d.c. characteristics termination. Gate. power cross protection connect protection device gate. Analog ground. Normally connected system ground. Positive supply. Must connected +3.3V. Wire matching network wire impedance matching network connected between this ZT1. compensation impedance connected between this Wire matching network wire impedance matching network connected between this ZT2. Balance network. network balance matching components connected between this pin, GND. Audio This analog input signal from Codec (which output Ring). Connected 100nF capacitor. connect. This used left open circuit. Audio Out. This analog output signal (from Ring) Codec. Connected 100nF capacitor. Forward/reverse. logic indicates that Ring polarities reversed. i.e. negative with respect Ring. Loop current. logic Indicates that loop current flowing. Loop switch control. Applying logic closes integral loop switch. Ringing signal. logic indicates presence ringing voltage telephone line. Toggles ringing frequency. Reference voltage. Used with detect off-hook parallel phone. Normally left open circuit. Approx. +1.9V Tip/Ring voltage. Indicates voltage Tip/Ring. Divided relative Vref.
Page
Silver Telecom 2002
V2.0 October 2002 Advance Data Sheet
Ag2120
Pin-Out Name RING CATHODE ANODE GATE VOUT VREF Description Ring. Connects subscriber line Ring. Tip. Connects subscriber line Tip. Cathode. power cross protection connect protection device cathode. Anode. power cross protection connect protection device anode. Gate. power cross protection connect protection device gate. Mask resistor connected between this adjust d.c. characteristics termination. Mask resistor connected between this adjust d.c. characteristics termination. Loop current. logic Indicates that loop current flowing. Audio This analog input signal from Codec (which output Ring). Connected 100nF capacitor. Audio Out. This analog output signal (from Ring) Codec. Connected 100nF capacitor. Loop switch control. Applying logic closes integral loop switch. Analog ground. Normally connected system ground. Positive supply. Must connected +3.3V. Forward/reverse. logic indicates that Ring polarities reversed. i.e. negative with respect Ring. Balance network. network balance matching components connected between this pin, GND. Wire matching network wire impedance matching network connected between this ZT1. compensation impedance connected between this Wire matching network wire impedance matching network connected between this ZT2. Ringing signal. logic indicates presence ringing voltage telephone line. Toggles ringing frequency. Reference voltage. Used with detect off-hook parallel phone. Normally left open circuit. Approx. +1.9V Tip/Ring voltage. Indicates voltage Tip/Ring. Divided relative Vref.
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
ringing signal. controlled output drive pins Codec from micro controller device. Once Loop Switch been closed confirmation that loop current flowing provided pin. This used fault detection call clear detection.
Line Interfacing
Ag2120 line interface provides flexible robust interface telephone line. been designed meet regulatory standards whilst providing space power efficient solution.
D.C. Termination.
equipment terminating telephone line must present correct d.c. resistance line. This ensures that correct current flows able detect hook condition, avoids excessive power dissipation Subscriber Line Interface (SLIC) Subscriber's equipment, minimises size power supply needed drive SLIC. Ag2120 been designed meet requirements many network operators. This done making d.c. characteristic adjustable. These controlled connecting pins line side circuit. Table shows these connected.
2.2.2 Ringing Detection Sensitivity.
terminal equipment must capable detecting responding incoming call same telephone set. termination circuitry must, therefore, detect presence ringing signal. Ag2120 provides output, which indicates presence ringing switching from logic logic output will toggle ringing frequency. capacitor ground also added ringing cadence needed rather than ringing frequency. sensitivity ringing internally 22VRMS when +5V, 14VRMS when +3.3V.
Table Pins
Market
North America (EIA 464, Resistive) Europe (CTR21) East
2.2.3 Reversal Detect
reversal battery polarity used signalling technique. Ag2120 detect this condition provides output pin, whether on-hook off-hook state. example this type signalling Caller Line United Kingdom, where battery polarity reversal precedes transmission data before ringing signal applied line. Another example some systems where reversal used indicate answer.
Connect together through 390K resistor Connect together through 390K resistor Connect together through 390K resistor
Signalling Loop Status.
Ag2120 provides facilities monitor control telephone line. This allows device used with variety loop signalling schemes minimises number external components needed implement complete line interface. order implement ground start applications please contact Silver Telecom local representative.
Wire (Hybrid) Conversion.
Ag2120 transmits receives balanced 2-wire analog signals Ring connections. These converted ground referenced output VOUT from ground referenced signal VIN. VOUT normally connected Codec (via d.c. blocking capacitors) conversion from Pulse Code Modulated (PCM) stream.
2.2.1 On-Board Loop Switch
Ag2120 implements loop start protocol when initiating answering call. This means that switch must closed allow loop current flow, signalling SLIC that terminating equipment gone "off-hook". This been done historically relay. Ag2120 uses integral optically isolated switch this, eliminating need external relay, space cost saved user. on-board Loop Switch controlled pin. logic applied closes loop switch. This done when terminating equipment wishes begin call response reception Silver Telecom 2002
Transmit Receive Gain.
gain both transmit receive directions 0dB. gain adjustments made using Codec functionality. This either hardware software depending upon Codec used.
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Network Balance Impedance CTR21 AT&T compromise Notes Short Line, East, Middle East Europe Long Line
2-wire Impedance CTR21
100K
-TBA
-TBA
Table Line Network Balance Impedance Examples
Wire Impedance
input impedance, ZIN, Ag2120 programmed. This achieved connecting impedance matching network between ZT2. This network line impedance matched minus 300. example match 600, resistor. Other common line impedances, corresponding programming components listed Table addition programming network, impedance, ZFC, must fitted between provide frequency compensation. alternative method programming wire impedance choose codec where internal filter characteristics programmed provide correct matching. order generate filter
coefficients model Ag2120 must used. This file, .CIR format available request from Silver Telecom representatives. Full details Codec programmed must obtained from Codec manufacturer.
Network Balance Impedance
setting network balance impedance very similar that wire impedance. Again this done programming Codec, using .CIR file, done hardware components.
On-Hook Reception
need provide facility data exchange On-Hook becoming increasingly common, whether Caller Line I.D. telemetry purposes.
Ag2120
Codec
RING
application: 390K 100K 300R 100nF
GATE ANODE
Silver
TELECOM
CATHODE
Figure Line Impedance Network Balance Components
Silver Telecom 2002 Page
V2.0 October 2002 Advance Data Sheet Ag2120 receive signals On-Hook, presenting high impedance line, i.e. while drawing very small current (5µA approx) from line.
Ag2120
Examples suitable devices are:Joyin JVR-14N201K; Walsin VZ14D201KBS Note: varistors ground used added protection (e.g. more than 1500V) customers should aware that test generator longitudinal tests rated 1000A. wire wound surge limiting resistors will also needed.
Ringer Load Networks
"dummy ringer" usually capacitive/resistive load which connected across TIP/RING. During call sufficiently high impedance affect operation interface. Ag2120 meets dummy ringer requirements CTR21 (Europe), Asia.
UL1459 UL1950 Protection.
Device Protection.
with many requirements which must Ag2120 device protection dependent upon regulatory standards market which equipment deployed. Some examples given below, these exhaustive. more comprehensive overview protection refer Silver Telecom protection applications note, which available directly form Silver Telecom, web-site (www.silvertel.com), through local representative.
meet UL1459 UL1950 mains cross test wire wound surge resistors 0.35A special fuses (Bussman C515 Littelfuse 220003) balanced configuration required. Alternatively Teccor F1250T fuse used without surge limiting resistors. also possible thermistors meet these tests. Raychem TR600-150 designed this application. Raychem application notes further details. typical application shown figure
Requirements.
Other Standards.
withstand Pt68 longitudinal voltage surge 1500V protection required barrier will withstand 1500V peak voltage GND. withstand Pt68 metallic surges 800V requires 130V varistor (which clamps 300V which rating loop switch transistor). 14mm device should used withstand 100A 10/560us surges.
Ag2120 provision cost mains cross protection (CCITT K21): wire wound surge resistor thermistor sufficient meet regulatory approvals. suitable device Walsin PTD3A350H26. (Metallic protection with single device that required Ag2120 will withstand longitudinal voltages 1000Vrms ground without additional protection). option, improved off-hook power cross
VoicePump shown illustration purposes. Ag2120 interface codec
LOUT
Ag2120
VOUT
VoicePump VP140
AGPIO
Processor Interface
RING Protection Circuit Protection circuit depends upon precise application Typical protection:
Silver TELECOM
600R line balance impedance:
390k 100k 100nF 10uF TR600-150 (Raychem) TVB200SA (Raychem)
Figure Typical Application
Silver Telecom 2002 Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Ag2120 Ag2120
Central Office Line
RING
Central Office Line
RING
TPP250
GATE GATE hook ANODE CATHODE ANODE
CATHODE
Standard Protection
Protection Off-hook
Figure Protection Options
protection, Ag2120 been designed interface directly STPP25011. This protection arrangement shown figure User/Network safety from mains power voltage (UL1950/EN60950 paragraphs 2.1.1 6.2.1.4) must provided externally power supply with reinforced double insulation.
Regulatory Standards
Layout
Signal tracks should kept short possible. Special attention should paid DMb, these sensitive nodes.
There some aspects international standards which fully Ag2120. These shown below. Silver Telecom's policy bring attention customers known exceptions. Ag2120 meets requirements EN60950 (1992) paragraph 6.2.1.2 countries except Norway Sweden. Please contact Silver Telecom product needed Norway Sweden.
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Absolute Maximum Ratings*
Parameter -0.3 PTRUNK PTOT ILOOP IRING -0.3 0.75 +100 Units
Voltages with respect ground unless otherwise stated.
supply voltage battery voltage present between Ring (on-hook) Maximum voltage programmable pin, Maximum power dissipation trunk 25°C Maximum power dissipation module 25°C Maximum loop current Maximum ringing current (for second) Storage Temperature
*Exceeding above ratings cause permanent damage product. Functional operation under these conditions implied. Maximum ratings assume free flow.
Recommended Operating Conditions*
Parameter Symbol VTIP VRING ILOOP 4.75 5.25 -120 -120 Units
Voltages with respect ground unless otherwise stated.
supply voltage (+5V operation) supply voltage (+3.3V operation) battery voltage Ring (on-hook) loop current Operating Temperature
*Typical figures 25°C with nominal supplies design only.
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Electrical Characteristics.
Characteristic Supply current (per trunk), on-hook Loop current range Status outputs, Output voltage Output high voltage Status outputs, Output voltage Output high voltage Control input, Input voltage Input high voltage Control input, Input current Input high current Control input, Input voltage Input high voltage Control input, Input current Input high current Status output Output voltage Output high voltage Status outputs Output voltage Output high voltage Off-hook voltage Leakage current, Ring analog ground Leakage current on-hook, Ring ILTR ILOOP 14.0
85.0
Units Test Comments operation 50µA -50µA +3.3V operation 50µA -50µA operation
operation
+3.3V operation
+3.3V operation operation 50µA -50µA +3.3V operation 50µA -50µA ILOOP 20mA DMa-DMb 100VDC
Electrical Characteristics over Recommended Operating Conditions with +5.0V +5%, unless otherwise stated. test circuit details please contact Silver Telecom Typical figures 25°C with nominal supply 25mA loop current, unless otherwise stated. These figures design only. Operating currents dependant users application.
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
10.0 Electrical Characteristics.
Characteristic Typ* Units VRMS VRMS
Test Comments
Ringing voltage: detect Ringing voltage: detect Ringing voltage: detect Ringing voltage: detect Ringing frequency Input Impedance Output impedance Vout Absolute voltage gain, Wire VOUT Absolute voltage gain, Wire On-hook gain, Wire VOUT Relative gain, referenced 1kHz. 2Wire Vout, 2Wire Total harmonic distortion 2Wire Vout Overload distortion Wire Vout Common mode rejection ratio Common mode overload level Idle channel noise
operation
+3.3V operation
-0.5 -0.5 -0.5 -0.5
CMRR CMOL PSRR
+0.5 +0.5 +0.5 +0.5
Off-hook Off-Hook
3400 @0dBm, 1kHz @+3dBm, 1kHz 500Hz 60VRMS 60Hz Wire VOUT Ripple 0.1V, 1kHz 300-3400Hz 300-3400Hz 500-2500Hz 200-1000Hz 1000-4000Hz 1000V
12.0
VRMS dBrnC
Power supply rejection ratio Wire Vout Return loss
Transhybrid loss
Metallic longitudinal balance Leakage current, Ring analog ground
mARMS
Electrical Characteristics over Recommended Operating Conditions with +5.0V +5%, unless otherwise stated. *Typical figures 25°C with nominal supply 25mA loop current unless otherwise stated. These figures design only. test circuit details please contact Silver Telecom. These figures fpr+5V operation. +3.3V operation, typically +3dBm. off-hook condition Into impedance
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
11.0 Mechanical Specification Assignation 11.1 Ag2120D Package
3.5mm
19.0
Bottom View
42.0m 54.0
Scale
2.0mm
2.0mm 11.00
Names Bottom View
Ring Cathode Anode Gate
Names View
Gate Anode Cathode Ring
Silver ecom recommends sockets, especially prototype pre-production boards Recommended hole diameter 0.05
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
11.1 Ag2120S Package
11.0mm
61mm
1.6mm 2.8mm
Ag2120S
12.0mm
0.05 2.54 0.25 0.05 12.7 0.25 Ring Cathode Anode Gate 1.6mm
Ag2120S
VOUT VREF
Silver Telecom recommends 2.54mm sockets, especially prototype pre-production boards. Recommended hole diameter 0.05
Information published this data sheet believed correct accurate. Silver Telecom assumes liability errors which occur liability otherwise arising this information infringement patents which occur result such use. license granted this document under patents owned Silver Telecom licensed from third parties Silver Telecom. products, their specifications information appearing this document subject change Silver Telecom without notice.
Silver Telecom 2002
Page
V2.0 October 2002 Advance Data Sheet
Ag2120
Change implemented
12.0 Change Sheet
Date Change 2002 Sept 2002 Version Number V1.0 V1.1 V2.0 Description Change First issue. Include VREF DIL, VREF Fill various TBA's
Silver Telecom 2002
Page
Other recent searches
NJT5665 - NJT5665 NJT5665 Datasheet
NJT5666 - NJT5666 NJT5666 Datasheet
MA6X1230G - MA6X1230G MA6X1230G Datasheet
IRL2910 - IRL2910 IRL2910 Datasheet
IPS2041 - IPS2041 IPS2041 Datasheet
HTG12B0 - HTG12B0 HTG12B0 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
