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MC34017A-3 View Datasheet(PDF) - Freescale Semiconductor

Part Name
Description
Manufacturer
MC34017A-3
Freescale
Freescale Semiconductor Freescale
MC34017A-3 Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TERMINAL CONNECTIONS
AC1 11
R01 2
R02 3
RI 4
8
AC2
7
RG
6
RC
5
RS
TERMINAL CONNECTIONS
Figure 3. 34017A Terminal Connections
Table 1. 34017A Terminal Definitions
Terminal Terminal Terminal
Number
Name
Function
Formal
Name
Definition
1, 8
AC1, AC2
5
RS
4
RI
2, 3
RO1, RO2
7
RG
6
RC
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 Terminal
internally clamps at 1.5 V.
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.
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).
Analog Integrated Circuit Device Data
Freescale Semiconductor
34017A
3
 

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