PC34017A-2D [MOTOROLA]

Telephone Ringer Circuit, Bipolar, PDSO8, PLASTIC, SOIC-8;


型号：	PC34017A-2D
厂家：	MOTOROLA
描述：	Telephone Ringer Circuit, Bipolar, PDSO8, PLASTIC, SOIC-8 电信光电二极管电信集成电路
文件：	总10页 (文件大小：165K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Order this document by MC34017/D

TELEPHONE TONE RINGER

Bipolar Linear/I²L

BIPOLAR LINEAR/I L

• Complete Telephone Bell Replacement Circuit with Minimum

SEMICONDUCTOR

TECHNICAL DATA

External Components

• On–Chip Diode Bridge and Transient Protection

• Direct Drive for Piezoelectric Transducers

• Push Pull Output Stage for Greater Output Power Capability

• Base Frequency Options – MC34017–1: 1.0 kHz

– MC34017–2: 2.0 kHz

– MC34017–3: 500 Hz

• Input Impedance Signature Meets Bell and EIA Standards

• Rejects Rotary Dial Transients

D SUFFIX

PLASTIC PACKAGE

CASE 751

P SUFFIX

PLASTIC PACKAGE

CASE 626

Typical Application

160 k

5.0

µF

25 V

15 k

2.2

µF

PIN CONNECTIONS

3.0 V

AC2

AC1

RO1

RO2

AC2

Ring

Tip

MC34017–X

1.0 µF

6.8 k

AC1

RO1

RO2

(Top View)

ORDERING INFORMATION

Operating

Piezo Sound

Element

MC34017–1: C = 1000 pF

MC34017–2: C = 500 pF

MC34017–3: C = 2000 pF

Temperature Range

Device

Package

MC34017D

MC34017P

SOIC

= –20° to +60°C

This device contains 97 active transistors and 79 gates.

Plastic DIP

Motorola, Inc. 1996

MOTOROLA ANALOG IC DEVICE DATA

MC34017

MAXIMUM RATINGS (Voltages Referenced to RG, Pin 7)

Rating

Symbol

Value

Unit

Operating AC Input Current (Pins 1, 8)

Transient Input Current (Pins 1, 8) (T<2.0 ms)

Voltage Applied at RC (Pin 6)

–

mA, RMS

±300

5.0

mA, peak

Voltage Applied at RS (Pin 5)

5.0

Voltage Applied to Outputs (Pins 2, 3)

Power Dissipation (@ 25°C)

–2.0 to V

1.0

°C

Operating Ambient Temperature

Storage Temperature

–20 to +60

stg

–65 to +150

NOTE: ESD data available upon request.

ELECTRICAL CHARACTERISTICS (T = 25°C)

Characteristic

Test

Symbol

Min

Typ

Max

Unit

Ringing Start Voltage

Vdc

= V at Ring Start

Start

V > 0

(+)

(–)

–34

37.5

–37.5

–41

Start

V < 0

Ringing Stop Voltage

= V at Ring Stop

MC34017–1

MC34017–2

MC34017–3

Stop

Vdc

Stop

Output Frequencies (V = 50 V)

MC34017–1 High Tone

MC34017–1 Low Tone

MC34017–1 Warble Tone

MC34017–2 High Tone

MC34017–1 Low Tone

MC34017–1 Warble Tone

MC34017–3 High Tone

MC34017–1 Low Tone

MC34017–1 Warble Tone

937

752

11.5

1874

1504

11.5

937

752

1010

808

1083

868

2166

1736

1083

868

12.5

2020

1616

12.5

1010

808

Output Voltage (V = 50 V)

Vpp

mApp

Vdc

Output Short–Circuit Current

, I

RO1 RO2

Input Diode Voltage (I = 5.0 mA)

5.4

6.2

6.8

Input Voltage – SCR “Off” (I = 30 mA)

off

Vdc

Input Voltage – SCR “On” (I = 100 mA)

3.2

1.3

4.1

1.5

6.0

1.8

Vdc

RS Clamp Voltage (V = 50 V)

Vdc

clamp

PIN FUNCTION DESCRIPTION

Description

Symbol

1, 8

AC1, AC2

The input terminals to the full–wave diode bridge. The ac ringing signal from the telephone line energizes the

ringer through this bridge.

The input of the threshold comparator to which diode bridge current is mirrored and sensed through an external

resistor (R3). Nominal threshold is 1.2 V. This pin internally clamps at 1.5 V.

2, 3

The positive supply terminal for the oscillator, frequency divider and output buffer circuits.

The tone ringer output terminals through which the sound element is driven.

RO1, RO2

The negative terminal of the diode bridge and the negative supply terminal of the tone generating circuitry.

The oscillator terminal for the external resistor and capacitor which control the tone ringer frequencies (R2, C2).

MOTOROLA ANALOG IC DEVICE DATA

MC34017

APPLICATION CIRCUIT PERFORMANCE (Refer to Typical Application)

Characteristic

Typical Value

Units

Output Tone Frequencies

MC34017–1

MC34017–2

MC34017–3

808/1010

1616/2020

404/505

12.5

Warble Frequencies

Output Voltage (V ≥ 60 Vrms, 20 Hz)

Vpp

Output Duty Cycle

Ringing Start Input Voltage (20 Hz)

Ringing Stop Input Voltage (20 Hz)

Maximum AC Input Voltage (≤ 68 Hz)

Impedance When Ringing

Vrms

kΩ

150

V = 40 Vrms, 15 Hz

V = 130 Vrms, 23 Hz

>16

Impedance When Not Ringing

V = 10 Vrms, 24 Hz

>1.0

kΩ

MΩ

kΩ

V = 2.5 Vrms, 24 Hz

V = 10 Vrms, 5.0 Hz

V = 3.0 Vrms, 200 – 3200 Hz

>200

Maximum Transient Input Voltage (T ≤ 2.0 ms)

1500

Ringer Equivalence: Class A

Ringer Equivalence: Class B

0.5

0.9

–

Block Diagram

Diode Bridge

AC1

Tip

Input

Current

Mirror

AC2

Ring

SCR Transient

Clamp

22 V

RO1

Piezo

Sound

Element

RO2

Bias

Push Pull

Output Buffer

Tone Frequency

Divider

Oscillator

Ref

Threshold

Comparator

Warble Frequency

Divider

MOTOROLA ANALOG IC DEVICE DATA

MC34017

CIRCUIT DESCRIPTION

The MC34017 Tone Ringer derives its power supply by

When the voltage on capacitor C3 exceeds 1.2 V, the

threshold comparator enables the tone ringer output. Line

transientsproducedbypulsedialingtelephonesdonotcharge

capacitor C3 sufficiently to activate the tone ringer output.

Capacitors C1 and C4 and resistor R1 determine the 10 V,

24 Hz signature test impedance. C4 also provides filtering for

the output stage power supply to prevent droop in the square

wave output signal. Six diodes in series with the rectifying

bridge provide the necessary non–linearity for the 2.5 V,

24 Hz signature tests.

rectifying the ac ringing signal. It uses this power to activate

a tone generator and drive a piezo–ceramic transducer. The

tone generation circuitry includes a relaxation oscillator and

frequency dividers which produce high and low frequency

tones as well as the tone warble frequency. The relaxation

oscillator frequency f is set by resistor R2 and capacitor C2

connected to Pin RC. The oscillator will operate with f from

1.0 kHz to 10 kHz with the proper choice of external

components (see Figure 1).

The frequency of the tone ringer output signal at RO1 and

An internal shunt voltage regulator between the RI and RG

terminals provides dc voltage to power the output stage,

oscillator and frequency dividers. The dc voltage at RI is

limited to approximately 22 V in regulation. To protect the IC

from telephone line transients, an SCR is triggered when the

regulator current exceeds 50 mA. The SCR diverts current

from the shunt regulator and reduces the power dissipation

within the IC.

RO2 alternates between f /4 to f /5. The warble rate at which

the frequency changes is f /320 for the MC34017–1, f /640

for the MC34017–2 and f /160 for the MC34017–3. With a

4.0 kHz oscillator frequency, the MC34017–1 produces

800 Hz and 1000 Hz tones with a 12.5 Hz warble rate. The

MC34017–2 generates 1600 Hz and 2000 Hz tones with a

similar 12.5 Hz warble frequency from an 8.0 kHz oscillator

frequency. The MC34017–3 will produce 400 Hz and 500 Hz

tones with a 12.5 Hz warble rate from a 2.0 kHz oscillator

frequency. The tone ringer output circuit can source or sink

20 mA with an output voltage swing of 37 V peak–to–peak.

Volume control is readily implemented by adding a variable

resistance in series with the piezo transducer.

EXTERNAL COMPONENTS

Line Input Resistor

R1 affects the tone ringer input impedance. It

also influences ringing threshold voltage and

limits current from line transients.

(Range: 2.0 to 10 kΩ).

Input signal detection circuitry activates the tone ringer

output when the ac line voltage exceeds programmed

threshold level. Resistor R3 determines the ringing signal

amplitude at which an output signal at RO1 and RO2 will be

generated. The ac ringing signal is rectified by the internal

diode bridge. The rectified input signal produces a voltage

across R3 which is referenced to RG. The voltage across

resistor R3 is filtered by capacitor C3 at the input to the

threshold circuit.

Line Input Capacitor

C1 ac couples the tone ringer to the telephone

line and controls ringer input impedance at low

frequencies.

(Range: 0.4 to 2.0 µF).

Oscillator Resistor

(Range: 150 to 300 kΩ).

Oscillator Capacitor

(Range: 400 to 3000 pF).

Figure 1. Oscillator Period (1/f ) versus

Input Current Sense Resistor

Oscillator R2 C2 Product

R3 controls the ringing threshold voltage.

Increasing R3 decreases the ring–start voltage.

(Range: 5.0 to 18 kΩ).

800

600

400

200

Ringing Threshold Filter Capacitor

C3 filters the ac voltage across R3 at the input

of the ringing threshold comparator. It also

provides dialer transient rejection.

(Range: 0.5 to 5.0 µF).

Ringer Supply Capacitor

C4 filters supply voltage for the tone generating

circuits. It also provides an ac current path for

the 10 Vrms ringer signature impedance.

(Range: 1.0 to 10 µF).

150 k

400 pF

≤

300 k

≤ 3000 pF

100

200

300

400

500

R2 C2, OSCILLATOR R2 C2 PRODUCT (

(1/f = 1.45 R2 C2 + 10 s)

MOTOROLA ANALOG IC DEVICE DATA

MC34017

Figure 2. Test One

6.8 k*

AC1

RO1

AC2

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

390

Ω

DUT

160 k*

RO2

0.047 µF

15 k*

0.2 µF

1.0 µF

a. Increase V from +33 V while monitoring V

(+) equals V when V commences switching.

(Normally Open)

Start

I O

b. Decrease V from –33 V while monitoring V

(–) equals V when V commences switching.

Start

c. Decrease V from +40 V while monitoring V

0.1

µF

equals V when V ceases switching.

I O

Stop

10 k

d. Set V to +50 V. Close S1. Measure frequencies

, f and f .

L W

5.6 k

10 k

0.01 µF*

200 k

IC2

0.01 µF

1/4

IC1

IC1 – MC14011B

IC2 – MC14538B

Q1 – 2N3904

1/4

IC1

MC34017–1: R = 110 k

Ω

MC34017–2: R = 55 k

Ω

= 12 V

*Indicates 1% tolerance (5% otherwise)

MC34017–3: R = 110 k

MOTOROLA ANALOG IC DEVICE DATA

MC34017

Figure 3. Test Two

6.8 k*

AC1

RO1

RO2

AC2

RO1

50 V

5.0 V

2.0 k

DUT

160 k*

RO2

10 V

15 k*

0.2 µF

With V

= 4.0 V, close S1. Switch S2 to Pin 2 and measure current

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

at Pin 2 (I ). Repeatedly switch V

Pin 2 current changes polarity. Measure the opposite polarity current (I ).

between 4.0 V and 0 V until

Calculate: I

= |I | + |I |.

O1 O2

RO1

*Indicates 1% tolerance (5% otherwise)

Switch S2 to Pin 3 and repeat.

Calculate: I = |I | + |I |.

RO2

O1 O2

Figure 4. Test Three

AC1

AC2

5.0

Measure voltage at Pin 1.

RO1

390

Ω

DUT

160 k*

RO2

0.047 µF

15 k*

0.2 µF

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

*Indicates 1% tolerance (5% otherwise)

MOTOROLA ANALOG IC DEVICE DATA

MC34017

Figure 5. Test Four

AC1

AC2

RO1

DUT

160 k*

RO2

15 k*

0.2 µF

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

a. Set I1 to 30 mA. Measure voltage at Pin 1 (V ).

off

b. Set I1 to 100 mA. Measure voltage at Pin 1 (V ).

(Each test < 30 ms)

*Indicates 1% tolerance (5% otherwise)

Figure 6. Test Five

6.8 k*

AC1

RO1

AC2

50 V

DUT

160 k*

RO2

15 k*

clamp

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

*Indicates 1% tolerance (5% otherwise)

Measure voltage at Pin 5 (V

clamp

Figure 7. Test Six

6.8 k*

AC1

AC2

50 V

RO1

2.0 k

20 k

DUT

160 k*

RO2

15 k*

0.2 µF

With V

= 4.0 V, close S1. Measure dc voltage between Pins 2 and 3

MC34017–1: C = 1000 pF*

MC34017–2: C = 500 pF*

MC34017–3: C = 1000 pF*

(V ). Repeatedly switch V

between 4.0 V and 0 V until Pins 2 and 3

change state. Measure the new voltage between Pins 2 and 3 (V ).

Calculate: V = |V | + |V |.

*Indicates 1% tolerance (5% otherwise)

MOTOROLA ANALOG IC DEVICE DATA

MC34017

OUTLINE DIMENSIONS

D SUFFIX

PLASTIC PACKAGE

CASE 751–05

ISSUE N

NOTES:

1. DIMENSIONING AND TOLERANCING PER

–A–

ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE

MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)

PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.127 (0.005) TOTAL

IN EXCESS OF THE D DIMENSION AT

MAXIMUM MATERIAL CONDITION.

4X P

–B–

0.25 (0.010)

MILLIMETERS

INCHES

DIM

MIN

4.80

3.80

1.35

0.35

0.40

MAX

5.00

4.00

1.75

0.49

1.25

MIN

MAX

0.196

0.157

0.068

0.019

0.049

0.189

0.150

0.054

0.014

0.016

R X 45

SEATING

PLANE

–T–

1.27 BSC

0.050 BSC

0.18

0.10

0.25

0.007

0.004

0.009

8X D

0.25 (0.010)

5.80

0.25

6.20

0.50

0.229

0.010

0.244

0.019

P SUFFIX

PLASTIC PACKAGE

CASE 626–05

ISSUE K

NOTES:

1. DIMENSION L TO CENTER OF LEAD WHEN

FORMED PARALLEL.

–B–

2. PACKAGE CONTOUR OPTIONAL (ROUND OR

SQUARE CORNERS).

3. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

MILLIMETERS

INCHES

DIM

MIN

9.40

6.10

3.94

0.38

1.02

MAX

10.16

6.60

4.45

0.51

1.78

MIN

MAX

0.400

0.260

0.175

0.020

0.070

–A–

NOTE 2

0.370

0.240

0.155

0.015

0.040

2.54 BSC

0.100 BSC

0.76

0.20

2.92

7.62 BSC

–––

1.27

0.30

3.43

0.030

0.008

0.115

0.300 BSC

–––

0.050

0.012

0.135

–T–

SEATING

PLANE

1.01

0.040

0.76

0.030

0.13 (0.005)

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

specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola

datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,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

applicationsintended 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

ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola

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

Opportunity/Affirmative Action Employer.

are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal

How to reach us:

USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;

P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454

JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,

3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,

51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

MC34017/D

◊

MOTOROLA ANALOG IC DEVICE DATA

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MC34017 : Telephone Tone Ringer

Page Contents:

●

Complete Telephone Bell Replacement Circuit with Minimum External Components

On–Chip Diode Bridge and Transient Protection

Direct Drive for Piezoelectric Transducers

Push Pull Output Stage for Greater Output Power Capability

Base Frequency Options

Features

Documentation

Orderable Parts

PC34017A-2D [MOTOROLA]

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