MC34216DW Ver la hoja de datos (PDF) - Motorola => Freescale

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MC34216DW

Programmable Telephone Line Interface Circuit with Loudspeaker Amplifier

Motorola => Freescale 

MC34216

Figure 2. Block Diagram of the MC34216 with Essential Components

Line +

C20

R6

R9

C24

R30

R28

To IMP To SAI

Z1

Z0

To IMP

C17 R20

HYN

10

C16 C12

Z21

CM NDC SAO

LAI

12

11 14

9

R12

IMP Iref

13 20

RXO1

26

RXO2

27

RXI

C5

25

TXI

6

Mic

7

LPO 23

Ear

Mute, AGC

Mute, AGC

Mic

Volume

LSP

LPI

DC Mask Generation

AC Termination

2–4 Wire Conversion

Line Length AGC

Protection

MC34216

Anti Howling

Microphone Threshold

Supply–

Stabilizer

References

Ring–

Regulator

Line

Driver

DTMF/Tone

and Ring

Generator

Micro–

Interface

Clock

Hook–Detect

24

C21

AGC

28

C25

AHO1 AHO2 MTF MTC SAI

1

2

3

4

15

C26 C27 C28 C29

Osc

16

X1

Line –

To IMP

VCC

21

AGnd

5

Gnd

22

LAO

8

RS

19

Clk

18

D/HS

17

T2

C7

T3

To

Micro–

controller

R1

A1, A0

00

01

10

11

Data

D0

D1

D2

D3

D4

D5

D0

D1

D2

D3

D4

D5

D0

D1

D2

D3

D4

D5

D0

D1

D2

D3

D4

D5

Symbol

MicM

EM

LD

PT

IT

MicP

MFC0

MFC1

MF0

MF1

MF2

MF3

R/S

EA

G0

G1

G2

RT

DCM0

DCM1

Sp

GR

HPI

Mth

Table 1

Function

Microphone Mute

Earphone Mute

Loop Disconnect

Pilot Tone

Idle Tone

Microphone Power

Tone Control

Tone Control

Tone Select

Tone Select

Tone Select

Tone Select

Ring/Speech Mode

Earphone Gain +6.0 dB

Loudspeaker Gain

Loudspeaker Gain

Loudspeaker Gain

Ring Tone

DC Mask Control

DC Mask Control

Speakerphone Mode

Line Length AGC

Anti–Howling

Microphone Threshold

Comments

On/Off

On/Off

For Pulse–Dialing

On/Off

On/Off

On/Off

Switch On/Off DTMF & Tone Generator

Select DTMF & Tone Frequency

Select

On/Off

Reduce Gain up to 27 dB in 4.5 dB Steps & Mute

On/Off

Select French, U.K., or Low Voltage Mask

On/Off

On/Off

On/Off

On/Off

4

MOTOROLA ANALOG IC DEVICE DATA

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