MC34017AP View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

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MC34017AP

Telephone Tone Ringer Bipolar Linear/I2L

Freescale Semiconductor 

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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