Order this document by TCA3388/D TELEPHONE LINE INTERFACE The TCA3388 is a telephone line interface circuit which performs the basic functions of a telephone set in combination with a microcontroller and a ringer. It includes dc and ac line termination, the hybrid function with 2 adjustable sidetone networks, handset connections and an efficient supply point. SEMICONDUCTOR TECHNICAL DATA FEATURES Line Driver and Supply • DC and AC Termination of the Telephone Line • • • • • Selectable DC Mask: France, U.K., Low Voltage Current Protection 20 Adjustable Set Impedance for Resistive and Complex Termination 1 Efficient Supply Point for Peripherals DP SUFFIX PLASTIC PACKAGE CASE 738 Hook Status Detection Handset Operation • Transmit and Receive Amplifiers • • • • Double Anti–Sidetone Network Line Length AGC 20 Microphone and Earpiece Mute 1 Transmit Amplifier Soft Clipping FP SUFFIX PLASTIC PACKAGE CASE 751D Dialing and Ringing • Interrupter Driver for Pulse–Dialing • • • Reduced Current Consumption During Pulse–Dialing DTMF Interfacing PIN CONNECTIONS Ringing via External Ringer Application Areas • Corded Telephony • • • • • Cordless Telephony Base Station Answering Machines Fax RXI 1 TXI 2 Mic 3 LAO 4 20 RXO2 19 RXO1 18 Gnd 17 VCC LAI 5 Intercom HYL 6 16 Iref 15 MUT Modem HYS 7 14 PI CM 8 13 HSO 9 12 DCM IMP SAO 10 11 SAI (Top View) ORDERING INFORMATION Device Tested Operating Temperature Range DIP TCA3388DP TCA3388FP This document contains information on a new product. Specifications and information herein are subject to change without notice. MOTOROLA ANALOG IC DEVICE DATA Package TA = 0° to +70°C SOIC Motorola, Inc. 1995 1 TCA3388 Simplified Block Diagram Line + DC and AC Termination Handset Earpiece DC Mask Generation AC Termination 2–4 Wire Conversion Ear Handset MIcrophone Supply Stabilizer Line Driver Mic Microcontroller Interface Line – This device contains 1,911 active transistors. MAXIMUM RATINGS Rating Maximum Junction Temperature Storage Temperature Range NOTE: Symbol Min Max Unit TJ – +150 °C Tstg – 65 +150 °C Devices should not be operated at or outside these values. The “Recommended Operating Limits” provide for actual device operation. RECOMMENDED OPERATING CONDITIONS Characteristic Symbol Min Typ Max Unit TA 0 – +70 °C Operating Temperature Range DC ELECTRICAL CHARACTERISTICS (TA = 25°C) Characteristic Symbol Min Typ Max 3.4 3.45 3.5 3.7 3.75 3.8 4.0 4.05 4.1 Unit VOLTAGE REGULATOR Regulated Supply at Pin 17 ICC = 7.0 mA ICC = 20 mA ICC = 80 mA VCC Vdc ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ Current Consumption at Pin 17, Pin PI = High ICC – – 600 45 –100 70 –70 100 – 45 µA DRIVER DC CHARACTERISTICS µA Available Current at LAO Source Current Sink Current I4 Amplifier A8 Driver Slope S8 0.7 1.0 1.2 µA/mV VLAO – – 270 mV VO1–VO2 30 80 140 mV VIMP – 1.6 – Vdc VRXI VRXO1 VRXO2 VOffset – – – – 1.6 1.7 1.45 0.25 – – – 0.70 LAO Voltage (PI = High, I4 = 100 µA) Internal Offset (Pins 5 to 10) SPEECH AMPLIFIERS IMP Voltage (Pin 9, Closed Loop) Earpiece Amplifier DC Bias (Rext = 100 kΩ) RXI, Pin 1 RXO1 Pin 19 RXO2, Pin 20 Offset (VRXO1 – VRXO2) 2 Vdc MOTOROLA ANALOG IC DEVICE DATA TCA3388 DC ELECTRICAL CHARACTERISTICS (continued) (TA = 25°C) Characteristic Symbol Min Typ Max Unit HYL and HYS DC Bias Voltage Normal Mode PI = High VHY1 VHY2 – – 2.4 1.4 – – Microphone Amplifier DC Bias at TXI VTXI – 1.45 – Vdc Saturation Voltage at Mic @ 1.0 mA VMic – 250 300 mV Leakage Current into Mic @ 3.7 V ILeak – – 2.0 µA High Level Voltage @ – 5.0 µA Load Current, Off–Hook, VSAI = Max VHSOH 2.7 2.9 – Vdc Maximum Load Current Normal Mode PABX Mode IHSOL IHSOH – 20 – – 5.0 – VHSOL VHSOLPI – 2.7 – 2.9 0.60 – TDel – 3.5 – ms Input Impedance ZPI – 160 – kΩ DC Bias Voltage VPIL – 1.4 – Vdc Input Current Make Phase Break Phase IPIL IPIH –1.0 –10 – – 1.0 10 Input Impedance ZMI – 160 – kΩ DC Bias Voltage VMI – 1.4 – Vdc Input Current Speech Mode Mute Mode IMIL IMIH –1.0 –10 – – 1.0 10 French Internal Slope Voltage on SAI (I2C = 3.6 µA) Voltage on SAI (I2D = 4.0 µA) Delta Offset Voltage on SAI (I2E = 30 µA) RI VC VD VE–VD 120 0.40 – – 160 0.47 0.49 – 200 – 0.57 30 mV/µA Vdc Vdc mV U.K. Internal Slope Voltage on SAI (I2C = 3.5 µA) Voltage on SAI (I2D = 3.9 µA) Delta Offset Voltage on SAI (I2E = 30 µA) RI VC VD VE–VD 210 0.59 – – 260 0.70 0.72 20 310 – 0.83 50 mV/µA Vdc Vdc mV Low Voltage Mode Internal Slope Voltage on SAI (I2C = 13 µA) Voltage on SAI (I2D = 15 µA) Delta Offset Voltage on SAI (I2E = 20 µA) RI VC VD VE–VD 100 1.0 – – 125 1.2 1.3 – 150 – 1.55 100 mV/µA Vdc Vdc mV 530 280 580 – 650 385 350 280 – – 440 440 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ SPEECH AMPLIFIERS Vdc HOOK STATUS OUTPUT (Pin 13) Low Level Voltage @ + 5.0 µA Load Current, VSAI = – 5.0 mV Normal On–Hook PI = High Time Delay from On–Hook or Off–Hook µA Vdc PULSE INPUT (Pin 14) µA MUTE INPUT (Pin 15) µA DC MASK CHARACTERISTICS Overvoltage Protection Threshold (VLAI – VSAO) French and U.K. DC Masks Low Voltage DC Mask VClamp1 Protection Voltage Level (VLAI – VSAO) French and U.K. DC Masks Low Voltage DC Mask VClamp2 MOTOROLA ANALOG IC DEVICE DATA mV mV 3 TCA3388 AC ELECTRICAL CHARACTERISTICS (TA = 25°C) Characteristic Symbol Min Typ Max Unit French and U.K. Maximum Transmit Gain (I2 = 3.0 µA) Line Length Regulation (I2 = 30 µA) Gain in Protection Mode (I2 = 30 µA) Kµ0 ∆Kµ Kµp 11.25 5.5 10.5 12.5 6.5 12.5 13.75 7.5 14.5 Low Voltage Mode Maximum Transmit Gain (I2 = 3.0 µA) Line Length Regulation (I2 = 8.2 µA) Gain in Protection Mode (I2 = 8.2 µA) Kµ0 ∆Kµ Kµp 11.25 4.5 10.5 12.5 6.0 12.5 13.75 7.5 14.5 ∆Kµm 60 – – dB French Maximum Internal Transconductance (I2 = 3.0 µA) Line Length Regulation (I2 = 18 µA) Hybrid Weighting Factor (I2 = 18 µA) Line Length Regulation (HYS @ VCC, I2 = 9.0 µA) Protection Mode (I2 = 18 µA) Ge0 ∆Ge mr ∆Ge Gep 150 2.95 0.4 1.5 145 180 3.7 0.5 2.1 185 210 4.45 0.6 2.5 230 µA/V dB U.K. Maximum Internal Transconductance (I2 = 3.0 µA) Line Length Regulation (I2 = 18 µA) Hybrid Weighting Factor (I2 = 13 µA) Line Length Regulation (HYS @ VCC, I2 = 9.0 µA) Protection Mode (I2 = 18 µA) Ge0 ∆Ge mr ∆Ge Gep 150 2.8 0.4 1.4 145 180 3.5 0.5 1.9 185 210 4.3 0.6 2.4 230 µA/V dB Low Voltage Mode Maximum Internal Transconductance (I2 = 3.0 µA) Line Length Regulation (I2 = 8.0 µA) Hybrid Weighting Factor (I2 = 7.0 µA) Line Length Regulation (HYS @ VCC, I2 = 4.0 µA) Protection Mode (I2 = 8.0 µA) Ge0 ∆Ge mr ∆Ge Gep 150 4.2 – – 145 185 5.7 0.5 3.0 185 210 7.2 – – 230 µA/V dB ∆Gem 60 – – dB French and U.K. Transmit Gain (I2 = 3.0 µA) Variation with Line Length (I2 = 30 µA) KPABX ∆KPABX 9.25 – 0.5 10.5 – 11.75 0.5 Low Voltage Mode Transmit Gain (I2 = 3.0 µA) Variation with Line Length (I2 = 30 µA) KPABX ∆KPABX 9.25 – 0.5 10.5 – 11.75 0.5 French Internal Transconductance (I2 = 5.0 µA) Hybrid Weighting Factor (I2 = 5.0 µA) Variation with Line Length (I2 = 30 µA) GPABX mr ∆GPABX 120 0.8 – 0.5 145 0.9 – 170 1.0 0.5 µA/V U.K. Internal Transconductance (I2 = 5.0 µA) Hybrid Weighting Factor (I2 = 5.0 µA) Variation with Line Length (I2 = 30 µA) GPABX mr ∆GPABX 120 0.65 – 0.5 145 0.75 – 170 0.85 0.5 µA/V Low Voltage Mode Internal Transconductance (I2 = 3.0 µA) Hybrid Weighting Factor (I2 = 3.0 µA) Variation with Line Length (I2 = 30 µA) GPABX mr ∆GPABX 120 – – 0.5 145 0.9 – 170 – 0.5 µA/V THDT THDR – – – – – – 3.0 3.0 5.0 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ TRANSMIT MODE dB dB Gain Reduction when Microphone is Muted RECEIVE MODE dB µA/V dB µA/V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ Earpiece Gain Reduction when Muted dB µA/V TRANSMIT PABX MODE dB dB RECEIVE PABX MODE dB dB dB DISTORTION French Transmit (I2 = 10 µA) Receive (I2 = 6.0 µA) % VE = 700 mV VE = 1250 mV NOTE: VE is the differential earpiece voltage across Pins 19 and 20. 4 MOTOROLA ANALOG IC DEVICE DATA TCA3388 AC ELECTRICAL CHARACTERISTICS (continued) (TA = 25°C) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ Characteristic Symbol Min Typ Max THDT THDR – – – – – – 3.0 3.0 5.0 Unit DISTORTION Low Voltage Transmit (I2 = 10 µA) Receive (I2 = 6.0 µA) % VE = 700 mV VE = 1250 mV NOTE: VE is the differential earpiece voltage across Pins 19 and 20. ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ TYPICAL TEMPERATURE PERFORMANCE Characteristic Typical Value @ 25°C Typical Change – 20 to + 60°C 3.7 – 0.8 mV/°C 400 µA – 0.55 µA/°C 1.0 µA/mV – 0.0035 µA/mV/°C French = 0.47 Vdc U.K. = 0.70 Vdc French = 0.49 Vdc U.K. = 0.72 Vdc 0.35 mV/°C 125 mV/µA 0.07 mV/µA/°C 12.5 dB 0.01 dB/°C 6.5 dB 6.5 dB 6.0 dB < 0.3 dB Variation < 0.3 dB Variation – 0.05 dB/°C 180 µA/V < 1.0 dB Variation 3.7 dB 3.5 dB 5.7 dB < 0.5 dB Variation < 0.5 dB Variation – 0.04 dB/°C VCC Regulated Supply @ Pin 17 Current Consumption at Pin 17, Pin PI = High Amplifier A8 Driver Slope Voltage on SAI VC VD Internal Slope for Low Voltage Mode Transmit Gain Kµ0 Line Length Regulation ∆Kµ French U.K. L.V. Internal Transconductance Ge0 Line Length Regulation ∆Ge French U.K. L.V. NOTE: Temperature data is typical performance only, based on sample characterization, and does not provide guaranteed limits over temperature. PIN FUNCTION DESCRIPTION Pin Symbol Description 1 RXI Earphone Amplifier Input 2 TXI Microphone Amplifier Input 3 Mic Microphone Bias Current Sink 4 LAO Line Driver Amplifier Output 5 LAI Line Driver Amplifier Input 6 HYL Hybrid Network Input for Long Lines 7 HYS Hybrid Network Input for Short Lines 8 CM DC Mask Signal Filtering 9 IMP Reference Voltage 10 SAO Line Current Sense Amplifier Output 11 SAI Line Current Sense Amplifier Input 12 DCM DC Mask Select 13 HSO Hook Status Output, PABX Mode Select 14 PI Pulse Input 15 MUT Mute Input 16 Iref 17 VCC Supply Voltage 18 Gnd Ground 19 RXO1 Earphone Amplifier Output 20 RXO2 Earphone Amplifier Inverted Output MOTOROLA ANALOG IC DEVICE DATA Reference Current 5 TCA3388 DESCRIPTION OF THE CIRCUIT Concept With a TCA3388, a microcontroller and a ringer, a basic telephone set can be built according to the concept depicted in Figure 1. In off–hook position, the application is in speech mode. The line current flows through transistor T2 and supplies the externals (microcontroller) at the supply point VCC which is stabilized by the TCA3388. The Vline, Iline characteristic is adjusted by the external components Z0, Z1, Z21 and R1 which are in a regulator loop, acting on transistor T2. The ac impedance is generated in a similar way. The handset can be connected directly to the TCA3388. Via a logic level interface, the microcontroller drives the TCA3388 to perform the DTMF/pulse–dialing. The user keyboard has to be connected to the microcontroller. In on–hook position, a ringing melody can be generated with a ringer application. The block diagram of the TCA3388, in Figure 2, shows the basic blocks of the device plus the essential external components. Figure 1. Telephone Concept with TCA3388 Z1 Hookswitch Z0 T2 VCC Z21 A/B TCA3388 Ringer Micro Handset R1 Gnd Figure 2. Block Diagram of the TCA3388 with Essential Components Line + Z2 Z1 C17 R19 8 HYL HYS DTMF Z21 6 7 C20 Z0 C16 R20 10 CM 5 SAO 9 LAI R12 16 IMP Iref RXO1 19 RXO2 R6 R9 20 RXI C5 1 TXI DC Mask Generation AC Termination 2–4 Wire Conversion Line Length AGC Protection Ear Mute, AGC Supply– Stabilizer References 17 Gnd C7 18 Mute, AGC 2 Micro–Interface Hook–Detect PABX Mic Mic 3 T2 VCC Line Driver LAO T3 4 TCA3388 DCM SAI 11 12 ZDCM Line – HSO 13 R22 14 PI MUT 15 To/From Microcontroller R1 6 MOTOROLA ANALOG IC DEVICE DATA TCA3388 DC CHARACTERISTICS AND STARTUP The dc mask has the general form as depicted in Figure 3. The TCA3388 offers the possibility to adjust the dc characteristics of all 4 regions via mask selection and hardware adjustments. The selection of the 3 masks, France, United Kingdom and Low Voltage, can be done via the ZDCM network at Pin DCM as shown in Figure 4. For French and U.K. masks, the region 3 with the high slope is within the normal dc feeding conditions. For Low Voltage mask the region 3 will be outside this and the dc mask is mainly determined by regions 1 and 2. Figure 4. Selection of the Country Mask via Pin DCM I DCM ( µA) FR 14 U.K. 11 LV 4 0 0.5 2.0 2.5 3.0 3.2 V (V) DCM Figure 3. General Form of the DC Mask of the TCA3388 ZDCM for the L.V., U.K. and FR Mask VLine DCM VCC 4 DCM DCM R23 56 k VLP R24 47 k 3 VLK L.V. 2 C21 10 µ U.K. R25 1.0 M C18 470 n FR VLC 1 0 ILine ILC Region 1: Region 2: Region 3: Region 4: ILP ILK IVLP Startup, Low Line Current, High Slope Mid–Range Line Current, Low Slope High Line Current, High Slope Overload Protection The capacitor in the U.K. network is to ensure a stable selection of the mask during all working modes and transitions. The capacitor in the French network is used to create a startup in Low Voltage Mask. The adjustment possibilities will be discussed below with the aid of the block diagram of Figure 5. Figure 5. DC Part of the Block Diagram of the TCA3388 T2 Line + C16 Z2 IMP Z1 1.6 V I2 L Z0 CM HYL R5 2 VBE VCC G Z21 I2 S LAI LAO T3 SAO C7 G HYS Gnd RX CM VO1 SAI VO2 TCA3388 R1 Line – MOTOROLA ANALOG IC DEVICE DATA 7 TCA3388 The TCA3388 offers the possibility to connect 2 sidetone networks Z1 and Z2. For correct dc operation, the dc impedance of these networks must be equal. When only 1 sidetone network is used, Pin HYS has to be connected to HYL. All formulas below are based on a single sidetone network, so only Z1 appears. When 2 sidetone networks are used, Z1 has to be replaced by Z1//Z2. In region 1, the transfer of the amplifier G at the HYL/HYS inputs equals zero. The voltage difference between SAO and SAI will equal VO1. The slope RE1 of the VLine, ILine characteristic will equal: R E1 ǒ Ǔ Z0 + R1 x 1 ) Z21 In region 2, the output current of the amplifier G will be proportional to the input current. As a result the voltage between SAO and SAI will increase with the line voltage. Speech signals on the line are of no influence on this because they are filtered out via capacitor C16. The slope RE2 of the VLine, ILine characteristic will equal: R E2 + R1 x ȡȧ ) Ȣ 1 1 RI Z1 ) ȣȧ Ȥ AC CHARACTERISTICS Impedance In Figure 6, the block diagram of the TCA3388 performing the ac impedance is depicted. As can be seen it is partly common with the dc mask block diagram. The part generating the dc mask is replaced by a dc voltage source because for ac, this part has no influence. Z21 Z0 Figure 6. AC Stage of the TCA3388 In region 3, the output current of the amplifier G is kept constant. As a result the slope in region 3 will equal the slope of region 1. The transfer from region 2 to 3 occurs at the point VLK, ILK defined by: ǒ When the line voltage becomes lower than VLP, the overload condition is removed and the TCA3388 will leave region 4. The current drawn from the line by the dc part is used to supply the TCA3388 and peripheral circuits. The excess loop current is absorbed by the voltage regulator at Pin VCC, where a filter capacitor is connected. The reference for the circuit is Pin Gnd. Startup of the application is ensured by an internal startup circuit. When the line current flows, the hook status output pin HSO goes high. This informs the microcontroller that the set is off–hook. When the line current is no longer present the pin will go low again. Because the line current is monitored, and not the line voltage, also an interrupt of the exchange can be recognized. Ǔ) T2 Line + Z0 VLK = Z1 x I2CD + 2 VBE + VCD + VO2 I LK + With: I2CD and 2 VBE ) Z21 x Z1 x I2CD 2 V BE Z0 R1 + I2C )2 I2D , and V 1.4 V, V02 1.1 V V LP Z0 + Z21 x V Clamp1 CD 8 + LP V Clamp2 LAO T3 Z21 C7 Gnd SAO V ) V D , C + CD 2 VO1 SAI V02 R1 Line – ) VCD ) VO2 When the protection mode is entered, the line current is reduced to a lower value ILP of: I VCC TCA3388 LAI When the French or U.K. mask is selected, this transfer takes places for line currents of 30 mA to 40 mA depending on the components settings. With the Startup and Low Voltage mask, the transfer lies outside the normal operating range with line currents of 90 mA or more. In most applications the transfer from region 1 to 2 takes place for line currents below 10 mA. With proper settings, region 4 is entered only during an overload condition. In this mode, the power consumption in the telephone set is limited. In order to detect an overload condition, the voltage between the Pins LAI and SAO is monitored. When the voltage difference is larger than the threshold VClamp1, the protection is made active. The relation for the line voltage VLP at this point is given as: V R5 ) (VO1 – VO2) When calculating the ac loop, it can be derived that the set impedance Zin equals Z in ǒ Ǔ Z0 [ R1 x Z0 + VI Line + R1 1 ) Z21 Z21 Line As can be noticed, the formula for the ac impedance Zin equals the formula for the dc slope in regions 1 and 3. However, because for the dc slope the resistive part of Z0 and Z21 are used, the actual values for Zin and the dc slopes do not have to be equal. A complex impedance can be made by making either Z0 or Z21 complex. When Z0 is made complex to fit the set impedance the transmit characteristics will be complex as well. The complex impedance is therefore preferably made via the Z21 network. Because Z21 is in the denominator of the Zin formula, Z21 will not be a direct copy of the required impedance but a derivative of it. Figure 7 gives this derived network to be used for Z21. R1 MOTOROLA ANALOG IC DEVICE DATA TCA3388 Figure 7. Derived Network for Z21 in Case of Complex Set Impedance The microphone signal current is derived from the microphone signal according to the schematic in Figure 9. Rv Rv SAO Figure 9. Microphone Amplifier Input Stage LAI Ra TCA3388 VCC Rw R Mic Rb Cb C Mic Cw Ru Cu TXI Gnd Rv + Rw Cw ǒ R1 x Z0 2 Ra Ǔ ) Rb – R1 ǒ Handset Microphone Ǔ + 4 R ǒR ) R – R1Ǔ b a b RTXI ILAI Ku Mic Mute R1 x Z0 R a – R1 + 4 R 2 b x C b R1 x Z0 TRANSMIT When a current is injected on Pin LAI, via the loop depicted in Figure 6, a signal is created on the line. In this way the microphone signals and DTMF signals (from an external source) are transmitted. It can be derived that the signal voltage on the line (VLine) depends on the signal current injected in LAI (ILAI) according to: + –ILAI x Z ) ZLine in Line The input stage of Figure 9 consists of a current amplifier with transfer Ku, an input impedance of 1.0 k (RTXI), plus an attenuator which reduces the signal current at high line currents (AGC). This attenuator can be switched on/off via the microcontroller. The input current Iu within the telephony speech band is derived from the microphone signal according Iu Line With this relation, a simplified replacement circuit can be made for the transmit amplifier (see Figure 8). Here the product of ILAI and Z0 is replaced by one voltage source. Figure 8. Replacement Diagram for the Transmit Amplifier Zin –I LAI*Z0 VLine +R Vu [ RVuu ) Ru ) R Mic TXI With: Vu = signal of the microphone only loaded with RMic Z0 x Z V Line AGC Iu The overall gain from microphone to line (ATX) now follows as A V Line + + TX Vu Z0 x Z Ku x Line Ru Z Z in Line ) Practically, the gain can be varied only with Z0, Ru and RMic. The TCA3388 offers the possibility to mute the microphone, also called privacy mode, by making the MUT Pin high. During pulse–dialing, the microphone bias is switched off. Pin Mic will be made high impedance, shutting off the microphone dc current. This reduces the current consumption of the circuit during pulse–dialing. ZLine MOTOROLA ANALOG IC DEVICE DATA 9 TCA3388 Figure 10. Receive Part of the TCA3388 Z1 R20 C17 Line + Z2 R19 HYS HYL IMP TCA3388 –1X RXO2 1.6 V Vref Ge Cear RXO1 RLoad 2V BE + V01 Ge Line Mute AGC SAI CLoad Handset Earpiece RXI Gnd R1 Line – RECEIVE SIDETONE The receive part of the TCA3388 is shown in Figure 10. The receive signal is picked up by the amplifiers at the HYL/HYS inputs. These are the same amplifiers present in the dc loop of Figure 5. The signal is first converted to current by the transconductance amplifier with transfer Ge. The multiplier placed after performs the line length AGC. It switches over between the 2 signals at HYS and HYL according to the line current via a modulation factor m. Afterwards, the current is converted back to voltage via the external feedback network ZLoad. The resulting voltage is available at output RXO1, and inverted at RXO2. From the diagram of Figure 10 the receive gain (ARX) can be derived as: When a transmit signal is transmitted to the line, a part of the signal is returned to the receive channel due to the architecture of the 2 to 4 wire conversion of the hybrid. During transmit, the signal on the line will be –ILine x ZLine. During receive, the signal on the line will be ILine x Zin. When replacing Zin in the formula for the receive gain, it follows that the signal on the earpiece output due to a sending signal on the line will be: A RX + VVRXO + Ge x R1 x ZLoad Line 1 With: Z H + R1R20 x Z1 x ǒ Ǔ 1 Z H in case of 2 sidetone networks More information on ZH and the modulation factor m can be found under the sidetone characteristics. The earpiece can either be connected as a single ended or as a differential load. The above calculated gain is valid for the single ended case. When connecting as a differential load, the gain is increased by 6.0 dB. The TCA3388 offers the possibility to mute the signal coming from the line to the earpiece. This can be useful during pulse– and DTMF–dialing. 10 Line (transmit) + Ge x R1 x ZLoad x ǒ Ǔ 1 – 1 Z Z Line H In applications with 1 sidetone network where HYS is connected to HYL, it follows: 1 Z H in in case of 1 sidetone network and + m x R1R20 ) (m –1) R1R19 x Z1 x Z2 V ) Z1 HYS connected to HYL, or 1 Z H V ear + R1R20 + Z1 x Z1 HL ZH has to be chosen according the average line impedance, and the average linelength of the countries involved in the application. A complex sidetone network can be made via a complex Z1 which is preferred above making R20 complex. The coupling capacitor C17 in series with R20 is meant only to block dc. For applications with 2 sidetone networks it follows: 1 Z H + m R1R20 ) (m –1) R1R19 + x Z1 x Z2 m 1 ) (m – 1) 1 Z Z HL HS The ZH thus exists as ZHL for long lines with low line currents and as ZHS for short lines with high line currents. This can be useful in applications such as DECT and handsfree where the sidetone has to be minimized to reduce the effect of delayed echoing and howling respectively. The TCA3388 will automatically switch over between the 2 hybrid networks as a function of line current. This is expressed in the MOTOROLA ANALOG IC DEVICE DATA TCA3388 factor m. The relation between the line current and the factor m is depicted in Figure 11. Figure 11. Modulation Factor m as a Function of Line Current m with a current ILrange, the gain is reduced by 6.0 dB. Due to the general characteristics of the line AGC curve, the gain will be decreased further for higher currents. For France and U.K., the line AGC will be active in region 3 of the dc characteristics. The ILstart is approximately equal to the ILK. The range is calculated from: Z1 x (I2R – I2CD) I Lrange R E3 For Low Voltage mask, the line AGC is active in region 2. + 1.0 0.5 DIALING ILine 0 ILstart ILm ILstop For low line currents below ILstart, thus long lines, the factor m equals 1. This means the hybrid network ZHL is fully used. For high line currents above ILstop, thus short lines, the factor m equals 0. This means the hybrid network ZHS is fully used. Both networks are used 50% for the intermediate line current Ilm. The switch over between the 2 networks takes place in region 3 for the French and U.K. mask and in region 2 for the Low Voltage mask. LINE LENGTH AGC The TCA3388 offers the possibility to vary the transmit and receive gain over line length in order to compensate for the loss in gain at longer line lengths. In the block diagrams of the transmit and receive channels (Figures 9, 10) the line AGC is drawn. The line AGC can be switched off by connecting a 150 kΩ resistor between HSO and Gnd. In this case, the transmit and receive gain are lowered by 2.0 dB with respect to the value calculated in the formulas above. The line AGC characteristics for both transmit and receive channel have the general shape depicted in Figure 12. Pulse–dialing is performed by making pin PI high. As a result the output LAO goes low and the loop will be disconnected. Internally the current consumption of the circuit is reduced and the current through the microphone is switched off. DTMF–dialing is performed by supplying a DTMF signal current to Pin LAI. This is the same node where the microphone signal currents are internally applied. Therefore, for the DTMF gain the same formulas apply. Because the microphone preamplifier is bypassed, there is no influence on DTMF signals by the line length AGC. A DTMF confidence tone can be generated on the earpiece by injecting a signal current at the RXI pin. Because only the earpiece amplifier itself is used, there are no effects from AGC or hybrid switchover. For correct DTMF–dialing the pin MUT has to be made high. This mutes both the microphone and earphone preamplifier. In this way signals from the microphone will not be amplified to the line and signals from the line are not amplified to the earpiece. The complete interfacing of the DTMF generator with the TCA3388 is shown in the typical application. SUPPORT MATERIAL Device Specification: Figure 12. General Line AGC Characteristics Gain Gain Nominal Gain + Nominal Gain I –I L Lstart 1 I Lrange ) User manual TCA3388: Extended description of the circuit and its concept, adjustment procedure, application hints and proposals Demonstration board: Reduced Gain Brief description of the TCA3388, block diagram, device data, test diagram, typical application Shows performance of the TCA3388 in its basic application TYPICAL APPLICATION ILine ILstart ILrange For low line currents, and thus long lines, the gains are nominal. When the line current has increased above ILstart MOTOROLA ANALOG IC DEVICE DATA The typical application below is based on the demoboard of the TCA3388. It contains the speech transmission part, diode bridge, hook switch and microcontroller interfacing. The dc mask setting on the bottom left is given for France, U.K. and Low Voltage applications. The component values are given in the table of Figure 14. The line driver is extended with T1, D5 and R3 which increases the signal swing under low line voltage conditions. 11 12 Gnd VCC HSO Pulse Mute DTMF Z2 R19 C15 C21 C18 R25 Mask Setting UK LV R8 C4 C8 C17 R24 R23 R20 R11 FR DTMF Gain Sidetone Balance R16 R17 Long Line R15 R18 Short Line C12 C14 Z1 C11 PABX R22 11 10 C16 Z21 C23 R21 R12 TCA3387 TCA3388 TCA3389 R28 C13 C26 20 1 C25 C22 Z0 R29 C10 C7 R9 C2 C19 R26 C20 R27 Transmit Gain C5 C24 R13 R14 R5 R6 R7 D5 Receive Gain C3 C6 Line Driver R1 T3 T2 Figure 13. Typical Application R3 T1 D3 D1 Rp D4 D2 Off–Hook On–Hook C1 Z1 Gnd Mic – Ear + Ear – Mic + VMic Line– B/A A/B Line + Ring TCA3388 MOTOROLA ANALOG IC DEVICE DATA TCA3388 Figure 14. List of Components for Typical Application TCA3388 Application Location on Board Basic L.V. France U.K. R1 Line Driver 16 16 18 R3 Line Driver Item Remarks 10 k R5 Line Driver 1.0 k R6 Receive Gain 150 k R7 Transmit Gain 2.2 k R8 DTMF Gain 470 k R9 Transmit Gain 39 k R11 DTMF Gain 56 k R12 Iref, Pin 16 R13 Z0 580 k 560 k 330 k R14 Z0 – 680 k 620 k R15 Z1 620 k 1.2 m 1.8 m R16 Z1 130 k 300 k 330 k R17 Z2 – 620 k 820 k R18 Z2 – 820 k 1.5 m R19 Sidetone Bal – 18 k 39 k R20 Sidetone Bal 7.5 k 15 k 22 k R21 Z21 16 k 16 k 18 k R22 PABX R23 Mask Setting – R24 Mask Setting R25 Mask Setting R26 Pin 19 10 Stability R27 Pin 20 10 Stability R28 Z21 0 R29 Transmit Gain 1.0 k Rp Line+ C1 A/B 10 n C2 Line Driver 470 p C3 Receive Gain 220 p C4 DTMF Gain 10 n C5 Transmit Gain 10 n C6 Transmit Gain 6.8 n C7 Pin 17 220 µ C8 DTMF Gain 10 n C10 Z0 – 4.7 n 330 p C11 Z1 220 p 120 p 150 p C12 Z2 – 82 p 150 p C13 Z21 C14 Sidetone Bal C15 Sidetone Bal – 470 p 470 p Stability C16 Pin 8 680 n 680 n 2.2 µ DC Mask C17 Sidetone Bal 121 k 1.0% 150 k – 56 k – – 47 k – 1.0 m – 0 22 VMic 22 EMC VCC, 10 V 470 p 470 p MOTOROLA ANALOG IC DEVICE DATA Stability 680 n 13 TCA3388 Figure 14. List of Components for Typical Application TCA3388 Application Location on Board Basic L.V. France U.K. C18 Mask Setting – 470 n – C19 Pin 19 Item 100 n Remarks Stability C20 Pin 20 C21 Mask Setting 100 n C22 Pin 17 100 n C23 Z21 – C24 Transmit Gain 10 µ VMic, 10 V C25 Pin 2 4.7 n EMC EMC – – Stability 10 µ 10 V Close to Pin C26 Pin 16 1.0 n T1 Line Driver MPSA92 PNP–HV T2 Line Driver MJE350 PNP–HV T3 Line Driver MPSA42 NPN–HV D1–D4 Bridge 4 x 1N4004 D5 Line Driver 1N4004 Signal Z1 A/B MKP1V270 Sidac 14 HV MOTOROLA ANALOG IC DEVICE DATA TCA3388 OUTLINE DIMENSIONS DP SUFFIX PLASTIC PACKAGE CASE 738-03 ISSUE E -A20 11 1 10 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. B C -T- L K SEATING PLANE M E N G F J 20 PL 0.25 (0.010) D 20 PL 0.25 (0.010) M T A M M T B M DIM A B C D E F G J K L M N INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 15° 0° 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0° 15° 1.01 0.51 FP SUFFIX PLASTIC PACKAGE CASE 751D–03 ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.150 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. –A– 20 11 –B– 10X P 0.010 (0.25) 1 M B M 10 20X D 0.010 (0.25) M T A B S J S F R C –T– 18X G K MOTOROLA ANALOG IC DEVICE DATA SEATING PLANE X 45 _ DIM A B C D F G J K M P R MILLIMETERS MIN MAX 12.65 12.95 7.40 7.60 2.35 2.65 0.35 0.49 0.50 0.90 1.27 BSC 0.25 0.32 0.10 0.25 0_ 7_ 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.499 0.510 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 BSC 0.010 0.012 0.004 0.009 0_ 7_ 0.395 0.415 0.010 0.029 M 15 TCA3388 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 16 ◊ *TCA3388/D* TCA3388/D MOTOROLA ANALOG IC DEVICE DATA