MC34016 Datasheet, PDF (1/16 Pages) Motorola, Inc – Cordless Universal Telephone Interface

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MC34016
Cordless Universal
Telephone Interface
The MC34016 is a telephone line interface meant for use in cordless
telephone base stations for CT0, CT1, CT2 and DECT. The circuit forms the
interface towards the telephone line and performs all speech and line
interface functions like dc and ac line termination, 2–4 wire conversion,
automatic gain control and hookswitch control. Adjustment of transmission
parameters is accomplished by two 8–bit registers accessible via the
integrated serial bus interface and by external components.
• DC Masks for Voltage and Current Regulation
• Supports Passive or Active AC Set Impedance Applications
• Double Wheatstone Bridge Sidetone Architecture
• Symmetrical Inputs and Outputs with Large Signal Swing Capability
• Gain Setting and Mute Function for Tx and Rx Amplifiers
• Very Low Noise Performance
• Serial Bus Interface SPI Compatible
• Operation from 3.0 to 5.5 V
CORDLESS UNIVERSAL
TELEPHONE INTERFACE
SEMICONDUCTOR
TECHNICAL DATA
20
1
P SUFFIX
PLASTIC PACKAGE
CASE 738
FEATURES
Line Driver Architecture
• Two DC Masks for Voltage Regulation
• Two DC Masks for Current Regulation
• Passive or Active Set Impedance Adjustment
• Double Wheatstone Bridge Architecture
• Automatic Gain Control Function
Transmit Channel
• Symmetrical Inputs Capable of Handling Large Voltage Swing
• Gain Select Option via Serial Bus Interface
• Transmit Mute Function, Programmable via Bus
• Large Voltage Swing Capability at the Telephone Line
Receive Channel
• Double Sidetone Architecture for Optimum Line Matching
• Symmetrical Outputs Capable of Producing High Voltage Swing
• Gain Select Option via Serial Bus Interface
• Receive Mute Function, Programmable via Serial Bus
Serial Bus Interface
• 3–Wire Connection to Microcontroller
• One Programmable Output Meant for Driving a Hookswitch
• Two Programmable Outputs Capable of Driving Low Ohmic Loads
• Two 8–Bit Registers for Parameter Adjustment
MOTOROLA ANALOG IC DEVICE DATA
20
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751D
PIN CONNECTIONS
Clk ¹
Data 2
Out2 3
Stab 4
Gnd 5
HKSW 6
Out1 7
VCC ⁸
Iref ⁹
HYL ¹⁰
20 BEN
19 _LAO
18 LAI
17 _SRF
16 AGC
15 Tx2
14 Tx1
13 Rx1
12 Rx2
11 _HYS
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC34016P
TA = –20° to +70°C
MC34016DW
DIP
SO–20
© Motorola, Inc. 1996
Rev 1
1