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Motorola Semiconductors |
Telephone Tone Ringer
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
Order this document by MC34017/D
MC34017
TELEPHONE TONE RINGER
BIPOLAR LINEAR/I2L
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
Typical Application
160 k
5.0 µF
C
25 V
15 k 2.2 µF
3.0 V
876 5
AC2 RG RC RS
Ring
1.0 µF
Tip
6.8 k
MC34017–X
AC1 RO1 RO2
123
RI
4
MC34017–1: C = 1000 pF
MC34017–2: C = 500 pF
MC34017–3: C = 2000 pF
Piezo Sound
Element
This device contains 97 active transistors and 79 gates.
MOTOROLA ANALOG IC DEVICE DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
AC1 1
RO1 2
RO2 3
RI 4
8 AC2
7 RG
6 RC
5 RS
(Top View)
ORDERING INFORMATION
Operating
Device Temperature Range
Package
MC34017D
TA = –20° to +60°C
MC34017P
SOIC
Plastic DIP
© Motorola, Inc. 1996
1
MC34017
MAXIMUM RATINGS (Voltages Referenced to RG, Pin 7)
Rating
Symbol
Operating AC Input Current (Pins 1, 8)
–
Transient Input Current (Pins 1, 8) (T<2.0 ms)
Voltage Applied at RC (Pin 6)
Voltage Applied at RS (Pin 5)
Voltage Applied to Outputs (Pins 2, 3)
Power Dissipation (@ 25°C)
Operating Ambient Temperature
Storage Temperature
Vin
VRC
VRS
VO
PD
TA
Tstg
NOTE: ESD data available upon request.
Value
20
±300
5.0
5.0
–2.0 to VRI
1.0
–20 to +60
–65 to +150
Unit
mA, RMS
mA, peak
V
V
V
W
°C
°C
ELECTRICAL CHARACTERISTICS (TA = 25°C)
Characteristic
Ringing Start Voltage
VStart = VI at Ring Start
VI > 0
VI < 0
Ringing Stop Voltage
VStop = VI at Ring Stop
MC34017–1
MC34017–2
MC34017–3
Output Frequencies (VI = 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
Output Voltage (VI = 50 V)
Output Short–Circuit Current
Input Diode Voltage (II = 5.0 mA)
Input Voltage – SCR “Off” (II = 30 mA)
Input Voltage – SCR “On” (II = 100 mA)
RS Clamp Voltage (VI = 50 V)
Test
Symbol
Min
1a VStart (+) 34
1b
VStart (–)
–34
1c VStop
14
12
14
1d
fH 937
fL 752
fW 11.5
fH 1874
fL 1504
fW 11.5
fH 937
fL 752
fW 23
6 VO 34
2
IRO1, IRO2
35
3 VD 5.4
4a Voff 30
4b Von 3.2
5
Vclamp
1.3
Typ
37.5
–37.5
16
14
16
1010
808
12.5
2020
1616
12.5
1010
808
25
37
60
6.2
38
4.1
1.5
Max
41
–41
22
20
22
1083
868
14
2166
1736
14
1083
868
28
43
80
6.8
43
6.0
1.8
Unit
Vdc
Vdc
Hz
Vpp
mApp
Vdc
Vdc
Vdc
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).
2 MOTOROLA ANALOG IC DEVICE DATA
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