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PDF MC34216 Data sheet ( Hoja de datos )
| Número de pieza | MC34216 | |
| Descripción | PROGRAMMABLE TELEPHONE LINE INTERFACE CIRCUIT WITH LOUDSPEAKER AMPLIFIER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MC34216
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Programmable Telephone
Line Interface Circuit with
Loudspeaker Amplifier
PROGRAMMABLE
TELEPHONE LINE
INTERFACE CIRCUIT WITH
LOUDSPEAKER AMPLIFIER
The MC34216 is developed for use in telephone applications where
besides the standard telephone functions also the group listening–in feature
is required. In cooperation with a microcontroller, the circuit performs all
basic telephone functions including DTMF generation and pulse dialing. The
listening–in part includes a loudspeaker amplifier, an anti–howling circuit and
a strong supply. In combination with the TCA3385, the ringing is performed
via the loudspeaker.
SEMICONDUCTOR
TECHNICAL DATA
FEATURES
Line Driver and Supply
• DC and AC Termination of the Line
• Selectable Masks: France, U.K., Low Voltage
• Current Protection
• Adjustable Set Impedance for Resistive and Complex Termination
• Efficient Supply Point for Loudspeaker Amplifier and Peripherals
28
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751F
Handset Operation
• Transmit and Receive Amplifiers
• Adjustable Sidetone Network
• Line Length AGC
• Microphone and Earpiece Mute
• Earpiece Gain Increase Switch
• Microphone Squelch Function
• Transmit Amplifier Soft Clipping
Dialing and Ringing
• Generates DTMF, Pilot Tones and Ring Signal
• Interrupter Driver for Pulse–Dialing
• Low Current While Pulse–Dialing
• Optimized for Ringing via Loudspeaker
• Programmable Ring Melodies
• Uses Inexpensive 500 kHz Resonator
Loudspeaking Facility
• Integrated Loudspeaker Amplifier
• Peak–to–Peak Limiter Prevents Distortion
• Programmable Volume
• Anti–Howling Circuitry for Group Listening–In
• Interfacing for Handsfree Conversation
PIN CONNECTIONS
AHO1
AHO2
MTF
1
2
3
MTC 4
AGnd 5
TXI 6
Mic 7
LAO 8
LAI 9
HYN 10
NDC 11
CM 12
IMP 13
SAO 14
28 AGC
27 RXO2
26 RXO1
25 RXI
24 LPI
23 LPO
22 Gnd
21 VCC
20 Iref
19 RS
18 Clk
17 D/HS
16 Osc
15 SAI
(Top View)
Application Areas
• Corded Telephony with Group Listening–In
• Cordless Telephony Base Station with Group Listening–In
• Telephones with Answering Machines
• Fax, Intercom, Modem
ORDERING INFORMATION
Device
Tested Operating
Temperature Range
MC34216DW TA = 0° to +70°C
Package
SO–28L
This document contains information on a product under development. Motorola reserves
the right to change or discontinue this product without notice.
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1995
1
1 page  
MC34216
When off–hook, the loop current flows through transistor
T2 and supplies the externals (microcontroller, etc.) at VCC
which is stabilized by the MC34216. The V–I line
characteristic is programmed by the microcontroller and
adjusted by the external components Z0, Z1, Z21 and R1
which are in a regulator loop, acting on transistor T2. The ac
impedance is generated in a similar way. The handset and
loudspeaker can be connected directly to the MC34216 to
perform handset and listening–in operation. Via the bus, the
microcontroller programs the MC34216 to perform the
DTMF/pulse–dialing and provide supervisory tones, as well
as control other functions. The user keypad has to be
connected to the microcontroller. When on–hook, the SMPS
(TCA3385) supplies the circuit in the presence of a ringing
signal. The microcontroller programs the MC34216 and a
ringing melody can be generated via the loudspeaker.
A summary of the control bits which can be programmed
from the microcontroller are in Table 1.
28
1
-T-
OUTLINE DIMENSIONS
DW SUFFIX
PLASTIC PACKAGE
CASE 751F–04
ISSUE E
-A-
15
-B-
14X P
0.010 (0.25) M B M
14
28X D
0.010 (0.25) M T A S B S
R X 45°
26X G
C
-T-
SEATING
PLANE
K
M
J
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15
(0.006) PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 17.80 18.05 0.701 0.711
B 7.40 7.60 0.292 0.299
C 2.35 2.65 0.093 0.104
D 0.35 0.49 0.014 0.019
F F 0.41 0.90 0.016 0.035
G 1.27 BSC
0.050 BSC
J 0.23 0.32 0.009 0.013
K 0.13 0.29 0.005 0.011
M 0° 8° 0° 8°
P 10.05 10.55 0.395 0.415
R 0.25 0.75 0.010 0.029
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
How to reach us:
USA / EUROPE: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki,
6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315
MFAX: [email protected] – TOUCHTONE (602) 244–6609 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design–NET.com
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
MOTOROLA ANALOG IC DEV◊ICE DATA
*MC34216/D*MC34216/D5
5 Page | ||
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| PDF Descargar | [ Datasheet MC34216.PDF ] | |
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