Motorola MC34017D, MC34017P Datasheet
1
AC1
RO1
RO2
AC2
RI
RG
RC
RS
2
3
4
8
7
6
5
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
TELEPHONE TONE RINGER
ORDERING INFORMATION
MC34017D
MC34017P
TA = –20° to +60°C
SOIC
Plastic DIP
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
PIN CONNECTIONS
Order this document by MC34017/D
1
8
D SUFFIX
PLASTIC PACKAGE
CASE 751
(Top View)
BIPOLAR LINEAR/I2L
1
MOTOROLA ANALOG IC DEVICE DATA
Bipolar Linear/I2L
• 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 – 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
Typical Application
This device contains 97 active transistors and 79 gates.
Piezo Sound
Element
15 k
5.0 µF
25 V
2.2
µ
F
3.0 V
160 k
C
AC2 RG RC RS
AC1 RO1 RO2 RI
8765
1234
Ring
Tip
MC34017–1: C = 1000 pF
MC34017–2: C = 500 pF
MC34017–3: C = 2000 pF
MC34017–X
6.8 k
1.0
µ
F
Motorola, Inc. 1996
MC34017
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
(Voltages Referenced to RG, Pin 7)
Rating Symbol Value Unit
Operating AC Input Current (Pins 1, 8) – 20 mA, RMS
Transient Input Current (Pins 1, 8) (T<2.0 ms) V
in
±300 mA, peak
Voltage Applied at RC (Pin 6) V
RC
5.0 V
Voltage Applied at RS (Pin 5) V
RS
5.0 V
Voltage Applied to Outputs (Pins 2, 3) V
O
–2.0 to V
RI
V
Power Dissipation (@ 25°C) P
D
1.0 W
Operating Ambient Temperature T
A
–20 to +60 °C
Storage Temperature T
stg
–65 to +150 °C
NOTE: ESD data available upon request.
ELECTRICAL CHARACTERISTICS (T
A
= 25°C)
Characteristic
Test Symbol Min Typ Max Unit
Ringing Start Voltage Vdc
V
Start
= VI at Ring Start
VI > 0 1a V
Start
(+) 34 37.5 41
VI < 0 1b V
Start
(–) –34 –37.5 –41
Ringing Stop Voltage 1c V
Stop
Vdc
V
Stop
= VI at Ring Stop
MC34017–1 14 16 22
MC34017–2 12 14 20
MC34017–3 14 16 22
Output Frequencies (VI = 50 V) 1d Hz
MC34017–1 High Tone f
H
937 1010 1083
MC34017–1 Low Tone f
L
752 808 868
MC34017–1 Warble Tone f
W
11.5 12.5 14
MC34017–2 High Tone f
H
1874 2020 2166
MC34017–1 Low Tone f
L
1504 1616 1736
MC34017–1 Warble Tone f
W
11.5 12.5 14
MC34017–3 High Tone f
H
937 1010 1083
MC34017–1 Low Tone f
L
752 808 868
MC34017–1 Warble Tone f
W
23 25 28
Output Voltage (VI = 50 V) 6 V
O
34 37 43 Vpp
Output Short–Circuit Current 2 I
RO1
, I
RO2
35 60 80 mApp
Input Diode Voltage (II = 5.0 mA) 3 V
D
5.4 6.2 6.8 Vdc
Input Voltage – SCR “Of f” (II = 30 mA) 4a V
off
30 38 43 Vdc
Input Voltage – SCR “On” (II = 100 mA) 4b V
on
3.2 4.1 6.0 Vdc
RS Clamp Voltage (VI = 50 V) 5 V
clamp
1.3 1.5 1.8 Vdc
PIN FUNCTION DESCRIPTION
Pin Symbol Description
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.
5 RS 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.
4 RI The positive supply terminal for the oscillator, frequency divider and output buffer circuits.
2, 3 RO1, RO2 The tone ringer output terminals through which the sound element is driven.
7 RG The negative terminal of the diode bridge and the negative supply terminal of the tone generating circuitry.
6 RC The oscillator terminal for the external resistor and capacitor which control the tone ringer frequencies (R2, C2).
MC34017
3
MOTOROLA ANALOG IC DEVICE DATA
APPLICATION CIRCUIT PERFORMANCE (Refer to Typical Application)
Characteristic Typical Value Units
Output Tone Frequencies Hz
MC34017–1 808/1010
MC34017–2 1616/2020
MC34017–3 404/505
Warble Frequencies 12.5
Output Voltage (VI ≥ 60 Vrms, 20 Hz) 37 Vpp
Output Duty Cycle 50 %
Ringing Start Input Voltage (20 Hz) 36 Vrms
Ringing Stop Input Voltage (20 Hz) 21 Vrms
Maximum AC Input Voltage (≤ 68 Hz) 150 Vrms
Impedance When Ringing kΩ
VI = 40 Vrms, 15 Hz >16
VI = 130 Vrms, 23 Hz 12
Impedance When Not Ringing
VI = 10 Vrms, 24 Hz 28 kΩ
VI = 2.5 Vrms, 24 Hz >1.0 MΩ
VI = 10 Vrms, 5.0 Hz 55 kΩ
VI = 3.0 Vrms, 200 – 3200 Hz >200 kΩ
Maximum Transient Input V oltage (T ≤ 2.0 ms) 1500 V
Ringer Equivalence: Class A 0.5 –
Ringer Equivalence: Class B 0.9 –
8
C1
R1
B
B
Bias
Ref
1
6
RO1
RO2
RS
2
3
5
AC2
AC1
RC
4RI
R2C2
C3R3
22 V
Input
Current
Mirror
Push Pull
Output Buffer
C4
Threshold
Comparator
Oscillator
Tone Frequency
Divider
Warble Frequency
Divider
SCR Transient
Clamp
Diode Bridge
Ring
Piezo
Sound
Element
Tip
Block Diagram
7RG
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