Evaluation Board Performance Testing HC5503C, HC5503J HC5503T Family S
|
|
|
Top Searches for this datasheet
Operation HC5503C, HC5503T Family SLICs Evaluation Board (HC5503XEVAL1)
Evaluation Board Performance Testing HC5503C, HC5503J HC5503T Family SLICs Includes On-Board Cross Point Switch Evaluation "Junctor" Applications Monitoring Switch Hook Detect (SHD) Board Automatic On/Off Controller Cross Point Switch Connection
designated GND. recommended that analog, digital battery grounds SLIC tied together close device pins possible. three external power supplies should each grounded evaluation board.
Getting Started
Verify that sample oriented socket correctly. Correct orientation with pointing towards onboard designator located upper left hand corner sockets. (Reference data sheet location device
Functional Description
Evaluation Board
facilitate testing parts evaluation board, board equipped with Double Pole Double Throw (DPDT) toggle switch DPDT switch determines connection SLIC's Transmit (TX) Receive (RX) outputs. outputs either connected banana jacks full evaluation voice feeding characteristics (reference Figure Onboard Cross Point Switch evaluation end-to-end application (reference Figure HC5503C/J/T evaluation board configured match line impedance ring feed resistors Provided with evaluation board generic HC5503X samples.
Verifying Basic SLIC Operation
operation sample parts verified performing tests: Power Supply Current Verification. Normal Loop Feed Verification. Ring Voltage Verification. Gain Verification (4-wire 2-wire).
above tests require following equipment: load, sine wave generator, volt meter external supplies (VBAT, VCC). Application Tip: When terminating ring, handy assemble terminators using Pomona dual banana plug connector terminating resistor receptacle. Refer Figure details.
HC5503C
HC5503C cost Subscriber Line Interface Circuit (SLIC), that replaces components unbalanced discrete Analog circuit design.
HC5503J
HC5503J cost Subscriber Line Interface Circuit (SLIC), that replaces discrete thick film hybrid "Junctor" unbalanced design solutions [1].
FIGURE TERMINATION ADAPTER
HC5503T
HC5503T cost Subscriber Line Interface Circuit (SLIC), that replaces components discrete Transformer Analog circuit design.
Power Requirements HC5503C/J/T
Power Supply Connections
HC5503C/J/T Evaluation Board requires three external power supplies. SLIC powered supplies VBAT -48V (Typ) +5V. third supply (VEE -5V) powers external Amps Cross Point Switch Junctor application.
Using termination shown Figure provides unobtrusive technique terminating ring while still providing access both signals using banana jack feature connector. Posts also available that into holes providing solderable connection terminating resistor.
Test Power Supply Current Verification
quick check evaluation board sample measure supply currents. readings should similar values listed Table measurements made using series ammeter each supply, power supplies with current displays.
Ground Connections
HC5503C/J/T evaluation board tied analog, digital battery grounds common ground plane
1-888-INTERSIL 321-724-7143
Discussion
currents measured include those SLIC supporting circuitry (i.e., HC5503X SLIC, Amp,
Intersil Design trademark Intersil Corporation.
Copyright
Intersil Corporation 2000
Application Note 9813
Channel LED, Cross Point Switch Transistors Q2). SLIC supply currents consult applicable data sheet. Terminate ring Channel with load (Channel disconnected during standard operation). Measure ring voltages with respect ground compare those Table
TABLE BATTERY VBAT -48V -12.8 RING -30.6
Setup
Connect power supplies Evaluation board. VBAT -48V, Ground (VEE supply required this test). DPDT switch (S1) standard operation. This connects Transmit Receive outputs banana jacks Terminate ring Channel with load (Channel disconnected during standard operation). Measure supply currents compare those Table
TABLE HC5503C, HC5503J, HC5503T SUPPLY VBAT -48V (mA) 10.9 33.5
Test Gain Verification (4-Wire 2-Wire)
This test will verify SLIC operating properly that 4-wire 2-wire gain 0.0dB.
Discussion
When terminated with load, SLIC will exhibit unity gain from input across ring (VTR). When open circuit exists, mismatch occurs ring voltage doubles. gain calculated Equation
(EQ.
Test Normal Loop Feed Verification
This test verifies loop current operation loop current detection onboard LED.
Setup
Connect power supplies Evaluation board. VBAT -48V, Ground (VEE supply required this test). DPDT switch (S1) standard operation. This connects Transmit Receive outputs banana jacks Terminate ring Channel with load (Channel disconnected during standard operation). Connect sine wave generator, referenced ground, input. generator 1VRMS 1kHz. Connect voltmeter across ring.
Discussion
When power applied SLIC loop current will flow from ring through load. Loop current detection occurs when this loop current triggers internal detector that pulls output low, illuminating through supply.
Setup
Connect power supplies Evaluation board. VBAT -48V, Ground (VEE supply required this test). DPDT switch (S1) standard operation. This connects Transmit Receive outputs banana jacks Terminate ring Channel with load (Channel disconnected during standard operation).
Verification
ring voltage 1VRMS when terminated. ring voltage 2VRMS when terminated.
Verifying Junctor Operation
operation Junctor application circuit using HC5503X samples provided verified performing tests: Channel Channel Transhybrid Balance. Inter-Channel Transhybrid Balance. Channel Channel Gain. Intra-Channel Transhybrid Balance with different loads.
Verification:
when ring terminated with 600. when ring open circuit.
Test Ring Voltage Verification
This test verifies ring voltages.
Setup
Connect power supplies Evaluation board. VBAT -48V, Ground (VEE supply required this test). DPDT switch (S1) standard operation. This connects Transmit Receive outputs banana jacks
above tests require following equipment: loads, sine wave generator, volt meter three external supplies (VBAT, VEE).
Definition Junctor Circuit
function Junctor application circuit convert port network with Transmit Output (TX) Receive Input (RX) into one-port network. conversion one-port network makes easy connect phone lines small System through single Cross Point. This
Application Note 9813
conversion accomplished connection Differential Amplifier Summing Amplifier. Differential Amplifier Summing Amplifier used cancel return signal prevent echo (reference Figure this one-port network, echo occur ways: Channel Channel IntraChannel. Reference Figure signal path both channelto-channel intra-channel signals. cancellation echo, within channel. other words, IntraChannel Transhybrid Balance when transmit signal from Channel feed back into input Channel Intra-Channel Transhybrid Balance performed Differential Amplifier (the output this amplifier DIFF DIFF Figure Calculation resistor value (R4) optimum Intra-Channel Transhybrid Balance discussed Test
Test Channel Channel Transhybrid
Definition
removal receive signal from transmit signal, prevent echo transmit side defined Channel Channel Transhybrid Balance. other words, Channel Channel Transhybrid signals occur when receive signal (from Channel retransmitted along with transmit signal Channel back Channel Channel Channel Transhybrid Balance performed Summing Amplifier (the output this amplifier Figure
Setup
Connect power supplies Evaluation board. VBAT -48V, -5V. DPDT switch (S1) Junctor operation. This connects Onboard Amp, Cross Point Switch second HC5503X SLIC Transmit Receive outputs Channel Terminate ring both Channel Channel with load. Connect sine wave generator parallel with load across ring Channel output this generator needs floating. generator 1VRMS 1kHz. Connect volt meter between test point ground. This will measure voltage input Differential Amplifier (SUM Connect volt meter between test point DIFF ground. This will measure voltage output Differential Amplifier (DIFF Inter-Channel Transhybrid Balance calculated using following formula Equation
DIFFA -SUMA (EQ.
Setup
Connect power supplies Evaluation board. VBAT -48V, -5V. DPDT switch (S1) Junctor operation. This connects Onboard Amp, Cross Point Switch second HC5503X SLIC Transmit Receive outputs Channel Terminate ring both Channel Channel with load. Connect sine wave generator parallel with load across ring Channel output this generator needs floating. generator 1VRMS 1kHz. Connect volt meter between test point DIFF ground. This will measure voltage output Differential Amplifier (DIFF Connect volt meter between test point ground. This will measure voltage output Summing Amplifier (SUM Channel Channel Transhybrid Balance calculated using following formula Equation
SUMB -DIFFB (EQ.
measure Inter-Channel Transhybrid Balance Channel connect sine wave generator parallel with load across ring Channel repeating steps through similar fashion. Voltage measurements taken DIFF Results both Channels should same. Compare results that listed Table
TABLE TEST Channel Channel Transhybrid Balance Channel Channel Intra-Channel Transhybrid Balance Channel Channel DIFF (VRMS) (VRMS) TRANSHYBRID BALANCE (dB)
measure Channel Channel Transhybrid Balance Channel connect sine wave generator parallel with load across ring Channel repeating steps through similar fashion. Voltage measurements taken DIFF Results both Channels should same. Compare results that listed Table
18.45m 20.79m
1.009 1.007
-34.7 -33.7
0.986 0.990
64.9m 67.0m
-23.6 -23.4
Test Intra-Channel Transhybrid
Definition
Intra-Channel Transhybrid Balance defined removal transmit signal from receive signal, thereby
Test Channel Channel Gain
This demo board configured have Channel Channel gain 0dB. This test will illustrate procedure calculating proper resistor value achieve Channel
Application Note 9813
Channel gain with Cross Point network used connect line cards. Also included easy procedure verify calculations. Equation used calculation achieve Channel Channel Gain one. similar analysis calculation achieve Channel Channel gain given Equation
(EQ.
Discussion
Channel Channel gain dependent upon: 2-wire 4-wire 4-wire 2-wire gains HC5503X being one, gain setting resistors differential amplifier R15), resistance Cross Point Switch (Rx) resistors (Reference Figure resistance values generally impedance matching transformer line card. impedance matching transformer design requirement, then values critical match various impedances. important however, that equal Figure simplified version Junctor circuit shows critical components required calculate optimum value obtain Channel Channel gain one. Because 2-wire 4-wire gain HC5503X one, voltage appearing ring voltage Channel (Summing amplifier configured gain one). ring voltage Channel equal voltage because 4-wire 2-wire gain HC5503X also one. Writing equation terms will enable gain corresponding resistor values determined. Equation used determine output voltage differential amplifier, therefore ring voltage Channel terms voltage
(EQ.
value determined network resistance. network resistance defined total resistance between Junctor inputs/outputs. case demo board network resistance resistance Cross Point Switch (50) (100). 10k, Network then 12.48k. Closest standard value 12.7k. Network resistance equal (Single CD22M3493 Cross Point), then 10.83k. Closest standard value 10.7k.
CHANNEL POINT
JUNC
NETWORK
DIFFERENTIAL AMPLIFIER
CHANNEL
12.7k JUNC TRANSMIT OUTPUT CHANNEL ZERO
voltage with respect
(EQ.
Substituting Equation into Equation defining Where total network resistance connecting Junctor Junctor input/outputs.
(EQ.
FIGURE CHANNEL CHANNEL TRANSHYBRID BALANCE
Verification
following procedure used verify above calculations.
Dividing both sides yields equation Channel Channel gain.
ChannelB ChannelA (EQ.
Setup
Connect power supplies Evaluation board. VBAT -48V, -5V. DPDT switch (S1) Junctor operation. This connects Onboard Amp, Cross Point Switch second HC5503X SLIC Transmit Receive outputs Channel Terminate ring both Channel Channel with load.
Setting V0/V1 equal rearranging solve assuming yields Equation
(EQ.
Application Note 9813
Connect sine wave generator parallel with load across ring Channel output this generator needs floating. generator 1VRMS 1kHz. Measure voltage across ring (VTR) both Channels Channel Channel Gain calculated using following formula Equation
channelB -VTR channelA (EQ.
voltage with respect where resistance Cross Point Switch
(EQ.
Substituting Equation into Equation setting equal Zero, defining rearranging solve
(EQ.
measure Channel Channel Gain connect sine wave generator parallel with load across ring Channel repeating steps similar fashion. Results both Channels should about same. Compare results that listed Table
TABLE RING RING CHANNEL CHANNEL GAIN (VRMS) (VRMS) (dB) 1.0074 1.0035 1.0063 1.0068 -0.01 -0.03
Equation used calculation achieve good Intra-Channel Transhybrid Balance Channel similar analysis Channel given Equation
(EQ.
TEST Channel Channel Gain Channel Channel Gain
Test Intra-Channel Transhybrid Balance with Different Loads
This evaluation board configured give optimum Intra-Channel Transhybrid Balance impedance between Junctor inputs/outputs. This test will illustrate procedure calculating proper resistor values optimize Intra-Channel Transhybrid Balance when different Cross Point network used. Also included easy procedure verify calculations.
value determined network resistance. case demo board, network resistance resistance Cross Point Switch (50) (100). 10k, Network then 12.48k. Closest standard value 12.7k Network resistance equal (Single CD22M3493 Cross Point), then 10.83k Closest standard value 10.7k Notice that calculated value both Channel Channel Intra-channel same. This because gain from Channel Channel one. Channel Channel gain anything other than one, Intra-channel Transhybrid Balance would become unacceptable. Proper operation this circuit requires that Channel Channel gain one.
NETWORK POINT JUNC
Discussion
Intra-Channel Transhybrid Balance performed Differential Amplifier (Reference Figure goal cancel transmit signal Channel Differential Amplifier, that none transmit signal feed back into receive terminal channel transmit signal cancelled differential amplifier adjusting value resistor value dependent upon: resistance value resistance network that connects Junctor inputs/outputs together (Cross Point R10) resistor Figure simplified version Junctor circuit shows critical components required calculate optimum value Intra-Channel Transhybrid Balance. Equation characteristic equation output voltage Differential Amplifier.
(EQ.
DIFFERENTIAL AMPLIFIER
CHANNEL
12.7k
CHANNEL
JUNC
TRANSMIT OUTPUT CHANNEL ZERO
FIGURE INTRA-CHANNEL TRANSHYBRID BALANCE
Application Note 9813
Verification
following procedure used verify above calculations.
CA324E TABLE JUNCTOR CIRCUIT Intersil Quad Amp.
Setup
Replace resistors with 10.7k resistor calculated above. Note, Channel equivalent Channel Connect power supplies Evaluation board. VBAT -48V, -5V. DPDT switch (S1) Junctor operation. This connects Onboard Amp, Cross Point Switch second HC5503J SLIC Transmit Receive outputs Channel Replace resistor with short. This will result network resistance total. Terminate ring both Channel Channel with load. Connect sine wave generator parallel with load across ring Channel output this generator needs floating. generator 1VRMS 1kHz. Connect volt meter between test point ground. This will measure voltage input Differential Amplifier (SUM Connect volt meter between test point DIFF ground. This will measure voltage output Differential Amplifier (DIFF Intra-Channel Transhybrid Balance calculated using following formula Equation
DIFFA -SUMA (EQ.
Transhybrid Balance Gain setting resistors Summing Amplifiers. Transhybrid Balance Gain setting resistors Differential Amplifiers.
Compensation Capacitors roll high freC26 quency gain Summing Differential Amplifier. prevent loop. Provides termination looking into Junctor input. Series resistor bring total resistance "Network" 150. "Network" defined total resistance that connects Junctor Junctor decoupling capacitors HC5503X Transmit (TX) Receive (RX) outputs.
C21,
CDM22M3493 Cross Point Switch. resistance switch approximately DPDT Switch used connect SLIC's Transmit Receive outputs Channel either banana jacks onboard Cross Point evaluation Junctor circuit. Automatic on/off controller Cross Point Switch. This circuit senses outputs both SLICs. both SLICs off-hook condition, then Cross Point Switch activated Junctor Junctor outputs connected together. either SLIC On-hook condition, Cross Point Switch Junctor Junctor outputs disconnected. TABLE FILTER CAPACITOR required proper operation SLIC's loop current limit function.
measure Intra-Channel Transhybrid Balance Channel connect sine wave generator parallel with load across ring Channel repeating steps through similar fashion. Voltage measurements taken DIFF Results both Channels should same. Compare results that listed Table section "Intra-Channel Transhybrid Balance."
TABLE SUPPLY DECOUPLING CAPACITORS -C16 Supply decoupling capacitors.
TABLE LEDs Current limiting resistors LEDs D10). TABLE PULLUP RESISTORS Pull resistors (R17 R19). Required proper operation SLIC.
Functional Circuit Component Descriptions
brief description each component provided below. components will grouped function provide further insight into operation HC5503C/J/T board.
TABLE WIRE SIDE, RING Feed resistors (RB1 RB8) that 2-wire impedance 600. used loop current detection. used current limiting during surge event. Secondary surge protection.
Reference
HC5503J Future Product. more information call LaFontaine (321) 729-5604.
Application Note 9813 Schematic Diagram Standard Operation
FEED
HC5503X
NUMBERS GIVEN STANDARD OPERATION
CHANNEL
VBAT
VB(INT)
RING
RING VBAT
BGND DGND AGND
-48V
FIGURE APPLICATION SCHEMATIC STANDARD OPERATION
CHANNEL
PATH CHANNEL-TO-CHANNEL TRANSHYBRID
CHANNEL
HC5503
JUNCTOR
CROSS POINT SWITCH
JUNCTOR
HC5503
PATH INTRA-CHANNEL TRANSHYBRID
FIGURE INTRA-CHANNEL CHANNEL-TO-CHANNEL PATHS THROUGH SYSTEM
HC5503C/J/T Evaluation Board Parts List
COMPONENT SLIC Quad Cross Point Switch VALUE 5.62k 12.7k 1.0k 0.33µF TOLERANCE HC5503X HC5503X CA324E CD22M3493 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W RATING COMPONENT Supply Decoupling Supply Decoupling VALUE 0.01µF 0.01µF 0.47µF .001µF 0.82µF 0.1µf 0.01µF 1N40007 LED, SPDT Mount Switch 1/4W TOLERANCE RATING 100V 100V,
Application Note 9813 Schematic Diagram Junctor Application
VBAT RING RING VBAT BGND DGND AGND STROBE AUTOMATIC ON/OFF CONTROLLER FEED DIFF DATA RESET VB(INT) JUNCTOR OPERATION DIFF
FEED
SLIC HC5503X
JUNC
-48V
CD22M3493 CROSS POINT SWITCH
SLIC HC5503X
JUNC
VBAT RING VB(INT)
RING
VBAT
BGND DGND AGND
-48V
CA324E QUAD NUMBERS GIVEN
FIGURE APPLICATION SCHEMATIC JUNCTOR OPERATION
Intersil semiconductor products manufactured, assembled tested under ISO9000 quality systems certification.
Intersil semiconductor products sold description only. Intersil Corporation reserves right make changes circuit design and/or specifications time without notice. Accordingly, reader cautioned verify that data sheets current before placing orders. Information furnished Intersil believed accurate reliable. However, responsibility assumed Intersil subsidiaries use; infringements patents other rights third parties which result from use. license granted implication otherwise under patent patent rights Intersil subsidiaries.
information regarding Intersil Corporation products, site www.intersil.com
Other recent searches
L1N4148WT1G - L1N4148WT1G L1N4148WT1G Datasheet
FPF1038 - FPF1038 FPF1038 Datasheet
1039 - 1039 1039 Datasheet
FPF1039 - FPF1039 FPF1039 Datasheet
FDW2507N - FDW2507N FDW2507N Datasheet
B340LA - B340LA B340LA Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
