MC34016 Cordless Universal Telephone Interface MC34016 telephone
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MC34016 Cordless Universal Telephone Interface
MC34016 telephone line interface meant cordless telephone base stations CT0, CT1, DECT. circuit forms interface towards telephone line performs speech line interface functions like line termination, wire conversion, automatic gain control hookswitch control. Adjustment transmission parameters accomplished 8-bit registers accessible integrated serial interface external components. Masks Voltage Current Regulation
CORDLESS UNIVERSAL TELEPHONE INTERFACE
SEMICONDUCTOR TECHNICAL DATA
Supports Passive Active Impedance Applications Double Wheatstone Bridge Sidetone Architecture Symmetrical Inputs Outputs with Large Signal Swing Capability Gain Setting Mute Function Amplifiers Very Noise Performance Serial Interface Compatible Operation from
SUFFIX PLASTIC PACKAGE CASE
FEATURES
Line Driver Architecture Masks Voltage Regulation
Masks Current Regulation Passive Active Impedance Adjustment Double Wheatstone Bridge Architecture Automatic Gain Control Function
SUFFIX PLASTIC PACKAGE CASE 751D
CONNECTIONS Transmit Channel Symmetrical Inputs Capable Handling Large Voltage Swing
Data Out2 Stab HKSW Out1 Iref (Top View)
Gain Select Option Serial Interface Transmit Mute Function, Programmable Large Voltage Swing Capability Telephone Line
Receive Channel Double Sidetone Architecture Optimum Line Matching
Symmetrical Outputs Capable Producing High Voltage Swing Gain Select Option Serial Interface Receive Mute Function, Programmable Serial
Serial Interface 3-Wire Connection Microcontroller
Programmable Output Meant Driving Hookswitch Programmable Outputs Capable Driving Ohmic Loads 8-Bit Registers Parameter Adjustment
Device
ORDERING INFORMATION
Operating Temperature Range -20° +70°C Package SO-20
MC34016P MC34016DW
Motorola, Inc. 1996
MOTOROLA ANALOG DEVICE DATA
MC34016
Representative Block Diagram
Outputs Inputs MC34016
Line Driver Hook Switch
Supply Iref +5.0 Serial Inputs Logic Outputs Serial Interface Data Out1 Out2 HKSW (Ring) (Tip)
This device contains active transistors gates.
MAXIMUM RATINGS
Rating Operation Supply Voltage Other Inputs Operating Ambient Temperature Junction Temperature
NOTE: data available upon request.
Symbol
Value -0.5, -0.5, +0.5 +150
Unit
MOTOROLA ANALOG DEVICE DATA
MC34016
ELECTRICAL CHARACTERISTICS (All parameters specified with Register rest
bits both registers 25°C, Iline kHz, Test Circuit Figure unless otherwise noted.) Parameter VOLTAGE REGULATION Line Voltage Vline Iline Iline Iline 6.85 Condition Unit
CURRENT REGULATION (Bit Reg.1 Reg. RAGC Line Voltage Vline Line Current Iline Line Current Iline Protection Mode BIASING Operating Supply Voltage Current Consumption from Source Capabiltiy Speech Mode Source Capability Dialing Mode (Bit Reg. Internal Pull Down Resistor Bias Voltage Pins HYL, Bias Voltage Pins Bias Voltage Pins LOGIC INPUTS Logic Level Pins Clk, Data, Logic High Level Pins Clk, Data, LOGIC OUTPUTS Source Capability from Pins HKSW, Out1, Out2 Sink Capability into Pins HKSW, Out1, Out2 Output Voltage Output Voltage -1.0 Bits Bits VLAO VLAO -2.0 -5.0 Iline Vline Vline Vline
ELECTRICAL CHARACTERISTICS (All parameters specified with Register rest
bits both registers 25°C, Iline kHz, Test Circuit Figure unless otherwise noted.) Parameter TRANSMIT CHANNEL Transmit Gain from Vline MC34016P MC34016DW Vrms Iline Reg. Reg. Reg. Between -1.0 -1.25 -0.7 0.25 -0.20 0.85 Condition Unit
Gain Variation with Line Current Referred Iline with Function Switched "Off" Gain Increase Mode Gain Reduction Mute Condition Input Impedance Maximum Input Swing Line (Vline) Psophometrically Weighted Noise Level Line (Vline) RECEIVE CHANNEL Receive Gain from Vline Gain Variation with Line Current Referred Iline with Function Switched "Off"
dBmp
Vline Vrms Iline Reg.
-1.0 -0.7
MOTOROLA ANALOG DEVICE DATA
MC34016
ELECTRICAL CHARACTERISTICS (continued) (All parameters specified with Register rest
bits both registers 25°C, Iline kHz, Test Circuit Figure unless otherwise noted.) Parameter RECEIVE CHANNEL Gain Increase Mode Gain Reduction Mute Condition Input Impedance Output Impedance Maximum Input Swing Maximum Output Swing Total Harmonic Distortion Psophometrically Weighted Noise Level AUTOMATIC GAIN CONTROL Gain Reduction Transmit Receive Channel with Respect Iline Highest Line Current Maximum Gain Lowest Line Current Minimum Gain Gain Reduction Transmit Receive Channel with Respect Iline Highest Line Current Maximum Gain Lowest Line Current Minimum Gain BALANCE RETURN LOSS Balance Return Loss with Respect SIDETONE Voltage Gain from SERIAL Clock Frequency Rising Edge Setup Time Before First Rising Edge Data Setup Time Before Rising Edge Data Hold Time After Rising Edge Falling Edge Delay Time After Last Rising Edge Rising Edge Delay Time After Last Falling Edge Power Supply Reset Voltage Timing Diagram Timing Diagram Timing Diagram Timing Diagram Timing Diagram Iline Reg. Iline Iline Reg. Reg. Reg. Reg. Reg. Vline Between mVpp µVrms Condition Unit
MOTOROLA ANALOG DEVICE DATA
MC34016
FUNCTION DESCRIPTION
Symbol Data Out2 Stab HKSW Out1 Iref Serial clock input Serial data input Logic output Line driver compensation Ground Logic output hook switch Logic output Supply input (+5.0 Reference current adjustment Hybrid input long lines Hybrid input short lines Receive output Receive output Transmit input Transmit input Automatic gain control input Sidetone reference input Line amplifier input Line amplifier output Serial enable input Description
MOTOROLA ANALOG DEVICE DATA
MC34016
DESCRIPTION CIRCUIT
Throughout this part, please refer typical application Figure data given this chapter refers typical data characteristics. with
Iline
Vline (IBG RDC1) (Iline with: =1.3 RDC1 setting resistor typical application Iline Line current Slope resistor typical application thus: Vline 3.75 Iline)
choosing different values RDC1, zener voltage adjusted country specific requirements. Figure curve shows Vline versus Iline different RDC1 values. Pulse Dial Mask this mask, circuit forced into very voltage drop mode meant pulse dialing (e.g. make period during pulse dialing). MC34016 sources current this mode, saturating output transistor line voltage Vline determined saturation voltage slope resistor Vline VCE(sat)Q1 Iline) Iline) Figure shows Vline versus Iline. Current Regulation Masks These masks equal voltage regulation mask knee current. Above this current, slope changes higher value fulfilling requirements such those France. Vline 3.75 Iline) IAGC Iknee
Vline [IBG (2.5 (IAGC Iknee))] RDC1 [VBG Iline)] IAGC Iknee MOTOROLA ANALOG DEVICE DATA
MC34016 incorporates four different masks which selected serial interface:
Reg. Mask' Reg. Mode' Reg. `AGC Ratio' Mask Selected Voltage Regulation Mask Pulse Dial Mask Current Regulation Mask with Ratio Current Regulation Mask with Ratio don't care
OPERATION
Iknee ratio Iknee ratio With RAGC ratio 3:5, IAGC will equal Iknee line current With ratio 1:2, knee occurs Above these line currents, derived that slope circuit changes Slope With component values mentioned, slope 1300 will occur. Figures shows Vline versus Iline current regulation masks different values RDC1. When IAGC reaches ratio case ratio 1:2, MC34016 will enter protection mode after about practice this mode occurs only under overload conditions. protection mode, MC34016 decreases power dissipation drastically increasing slope starting from Iknee. This results reduced line current which remains practically constant over line voltage. With equation Iagc derived that:
Voltage Regulation Mask voltage regulation mask default setting MC34016 after power-up. this mode, circuit behaves zener with series resistor. line voltage expressed
ratio
Line Current Enter Protection Mode
Line Current Protection Mode
Once MC34016 enters protection mode, remains there until output HKSW toggled Register (on-hook, off-hook).
Supply Voltage MC34016 operates from external supply within voltage range current consumption with bits equals
IMPEDANCE
MC34016 offers possibilities adjustment impedance. Either passive active impedance obtained. Passive Impedance this application, impedance formed impedance circuit itself parallel with resistor RSET capacitor CSET. equivalent network equals:
RDC1
RDC1
RSET
CSET
MC34016
With component values typical application, inductor value about RDC1 equals audio range 300-3400 these components form fairly large parallel impedance RSET CSET. Therefore, impedance mainly determined passive network SET. typical application, RSET easily replaced complex network obtain complex impedance. Active Impedance active impedance obtained placing resistor between (RSRF) shown Figure doing MC34016 itself generates impedance RSET CSET omitted. equivalent network equals: Outputs order transmit signals line, output stage MC34016 (line driver) modulates zener previously described. guarantee stability output stage capacitor CSTB required
SIDETONE
MC34016 equipped with double Wheatstone bridge architecture optimize sidetone. sidetone network used short lines long lines. Switchover between both networks dependent line current described automatic gain control section. Different sidetone equations apply depending whether passive active impedance set. Sidetone Cancellation with Passive Impedance passive impedance application, impedance part equations optimum sidetone. short lines optimum cancellation occurs lineshort lineshort with: Zlineshort impedance short telephone line long lines: linelong linelong with: Zlinelong= impedance long telephone line
RDC1 RSRF
RDC1
((RDC1 RSRF) RS/RSRF)
Ignoring effect inductor parallel path RDC1 RSRF again audio frequencies, impedance determined
RSRF)
With RDC1 RSRF should obtain impedance. obtain complex impedance, made complex. such case, mask adjusted with value RDC1 impedance adjusted with value RDC1. application with active impedance interesting, particularly countries like France, where with current regulation mask, rather high line voltages reached. With passive impedance, this would result high cost capacitor CSET.
Sidetone Cancellation with Active Impedance active impedance application, impedance does appear equations optimum sidetone cancellation does passive application. short lines, optimum cancellation occurs lineshort long lines: linelong
RECEIVE CHANNEL
Inputs inputs have input resistance handle signals mVpp. This corresponds signal telephone line about typical application. switchover from dependent line current described automatic gain control section. Gain overall gain from line outputs short lines passive impedance equals: active impedance follows:
TRANSMIT CHANNEL
Inputs inputs designed handle large signal levels +3.0 dBm. input impedance both equals inputs designed symmetrical well asymmetrical use. asymmetrical drive, input tied external capacitor. Gain gain from inputs line dependent impedance, line load impedance slope resistor following way: line line
R14R14
ZZHYS
With ZSET Zline gain equals setting Register gain raised MOTOROLA ANALOG DEVICE DATA
these relations, resistor parallel with input impedance gain long lines derived replacing ZHYS ZHYL
MC34016
R17. With receive gain equals passive impedance application. Outputs outputs receive channel have output impedance designed drive resistive load capacitive load with swing. relation between line current Istart Istop given linestart AGCstart linestop AGCstop Figures show curves both voltage regulation current regulation. current regulation, start point curves coupled knee point characteristic, Iknee IAGCstart.
AUTOMATIC GAIN CONTROL
automatic gain control function (AGC) controls transmit receive gains switchover sidetone networks short long lines according line current (which represents line length). effect transmit receive amplifiers default disabled serial bus. switchover sidetone networks tracks curves transmit receive amplifier gain. This feature also disabled serial bus:
Reg. `PABX Mode' Reg. `AGC Range'
LOGIC OUTPUT DRIVERS
MC34016 equipped with three logic outputs meant interface front telephone. outputs controlled serial interface. shown characteristics, logic outputs capable sourcing least sinking least Output HKSW Output HKSW dedicated drive hookswitch. With HKSW low, line opened automatically switches line driver transistor This feature guarantees fast settling after line breaks occurring during pulse dialing. Outputs Out1 Out2 Outputs Out1 Out2 used logic function, such control earth switch and/or shunt wire.
Description Gain Range Sidetone Switchover Enabled Gain Range, Sidetone Switchover Enabled Range only Input Active, Muted Gain Range, only Input Active, Muted
ratio between start stop current curves programmable both voltage current regulation mode:
Reg. Mask' Reg. `AGC Ratio'
SERIAL INTERFACE
serial interface MC34016 enables simple three wire connection micro controller. Timing Times specified electrical characteristics. With high, data clocked into serial port using Data lines. rising edge Clk, data enters MC34016. last 8-bits data entered shifted into registers when forced low. With low, serial port MC34016 disabled. must kept until next register update needed. Data should written entering most significant first (Bit least significant (Bit last. With low, Data lines used control other devices application.
Ratio Selected
IAGCstart (µA)
IAGCstop (µA)
Voltage Regulation, Ratio Voltage Regulation, Ratio
Current Regulation, Ratio Current Regulation, Ratio
MOTOROLA ANALOG DEVICE DATA
MC34016
Timing Diagram
Data
Vline LINE VOLTAGE
Vline LINE VOLTAGE
Register (Bit
Function Operation Default Output HKSW Output Out1 Output Out2 HKSW HKSW High Out1 Out1 High Out2 Out2 High Used Mask Voltage Regulation Mask Current Regulation Mask France Mode Speech Mode/Normal Operation Dialing Mode Voltage Drop Only Used During Manufacturing Test Mode
Registers MC34016 equipped with 8-bit registers which selected value most significant (Bit supply voltage MC34016 drops below registers This RESET function enables smooth power-up device. registers follows:
Figure Line Voltage versus Line Current
(Voltage Regulation Mask)
RDC1 RDC1 RDC1
Iline, LINE CURRENT (mA)
MOTOROLA ANALOG DEVICE DATA
Register (Bit
Function Operation Default Range Ratio Range Range (Switched "Off") Voltage Regulation: (Bit Reg. Ratio Ratio Current Regulation: (Bit Reg. Ratio Ratio Transmit Mute Receive Mute Transmit Channel Active Transmit Channel Muted Receive Channel Active Receive Channel Muted Transmit Gain Receive Gain PABX Mode Transmit Channel Gain Transmit Channel Gain Receive Channel Gain Receive Channel Gain Normal Mode PABX Mode (only Input Selected)
Figure Line Voltage versus Line Current
(Pulse Dial Mask)
Iline, LINE CURRENT (mA)
MC34016
Figure Line Voltage versus Line Current
(Current Regulation Mask) Vline LINE VOLTAGE RDC1 RDC1 RAGC Ratio RDC1 Vline LINE VOLTAGE RDC1 RDC1 RAGC Ratio RDC1
Figure Line Voltage versus Line Current
(Current Regulation Mask)
Iline, LINE CURRENT (mA)
Iline, LINE CURRENT (mA)
Figure Weighting Factor versus Iline
(Voltage Regulation Mask) WEIGHTING FACTOR WEIGHTING FACTOR RAGC Ratio Gain
Figure Weighting Factor versus Iline
(Voltage Retulation Mask)
RAGC Ratio
Gain
Iline, LINE CURRENT (mA)
Iline, LINE CURRENT (mA)
Figure Weighting Factor versus Iline
(Current Regulation Mask) WEIGHTING FACTOR WEIGHTING FACTOR RAGC Ratio
Figure Weighting Factor versus Iline
(Currrent Regulation Mask)
Gain
RAGC Ratio
Gain
Iline, LINE CURRENT (mA)
Iline, LINE CURRENT (mA)
MOTOROLA ANALOG DEVICE DATA
MC34016
Figure Test Diagram
RHS1 RHS2 CHS1 0.047 CRx1 CRx2 CTx1 0.047 CTx2 0.047 Supply Iref Rref MC34016
RHL1 RHL2 CHL1 0.047
RDC1
CStab
RSET
Stab
Line Driver
MJE340
Serial Interface Data Out1 Out2 HKSW
RAGC CSET Iline
Cline Rline Vline
From
MOTOROLA ANALOG DEVICE DATA
MC34016
Figure Typical Application with Passive Impedance Voltage Regulation
MJE350 RHS1 RHS2 CHS1 0.047 CRx1 0.047 Receive Outputs CRx2 0.047 Transmit 0.047 Inputs CTx2 0.047 Supply Iref Supply Rref Serial Interface Data Out1 Out2 HKSW RAGC CSET MPSA42 RHL1 RHL2 CHL1 0.047 MC34016 Stab Line Driver 1N4004 Ring RDC1 CStab RSET RINT
Vline
From
Shunt Earth
NOTE:
Sidetone Networks adapted country specific telephone lines.
Optional
MOTOROLA ANALOG DEVICE DATA
MC34016
Figure Typical Application with Active Impedance Current Regulation
MJE350 RHS1 RHS2 CHS1 0.047 CRx1 0.047 Receive Outputs CRx2 0.047 Transmit 0.047 Inputs CTx2 0.047 Supply Iref Supply Rref Serial Interface Data Out1 Out2 HKSW RAGC MPSA42 RHL1 RHL2 CHL1 0.047 MC34016 RSRF Stab Line Driver MJE340 1N4004 Ring RDC1 CStab RINT
Vline
From
Shunt Earth
NOTE:
Sidetone Networks adapted country specific telephone lines.
Optional
MOTOROLA ANALOG DEVICE DATA
MC34016
OUTLINE DIMENSIONS
SUFFIX PLASTIC PACKAGE CASE 738-03 ISSUE -A20 NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. DIMENSION CENTER LEAD WHEN FORMED PARALLEL. DIMENSION DOES INCLUDE MOLD FLASH. INCHES 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 0.050 0.070 0.100 0.008 0.015 0.110 0.140 0.300 0.020 0.040 MILLIMETERS 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 1.27 1.77 2.54 0.21 0.38 2.80 3.55 7.62 0.51 1.01
-TSEATING PLANE
0.25 (0.010)
0.25 (0.010)
SUFFIX PLASTIC PACKAGE CASE 751D-04 ISSUE
0.010 (0.25)
NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: MILLIMETER. DIMENSIONS INCLUDE MOLD PROTRUSION. MAXIMUM MOLD PROTRUSION 0.150 (0.006) SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.13 (0.005) TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. MILLIMETERS 12.65 12.95 7.40 7.60 2.35 2.65 0.35 0.49 0.50 0.90 1.27 0.25 0.32 0.10 0.25 10.05 10.55 0.25 0.75 INCHES 0.499 0.510 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 0.010 0.012 0.004 0.009 0.395 0.415 0.010 0.029
0.010 (0.25)
SEATING PLANE
MOTOROLA ANALOG DEVICE DATA
MC34016
NOTES
MOTOROLA ANALOG DEVICE DATA
MC34016
Motorola reserves right make changes without further notice products herein. Motorola makes warranty, representation guarantee regarding suitability products particular purpose, does Motorola assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters vary different applications. operating parameters, including "Typicals" must validated each customer application customer's technical experts. Motorola does convey license under patent rights rights others. Motorola products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Motorola product could create situation where personal injury death occur. Should Buyer purchase Motorola products such unintended unauthorized application, Buyer shall indemnify hold Motorola officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Motorola negligent regarding design manufacture part. Motorola registered trademarks Motorola, Inc. Motorola, Inc. Equal Opportunity/Affirmative Action Employer.
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MC34016/D MOTOROLA ANALOG DEVICE DATA
*MC34016/D*
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