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MC33410 Datasheet

DUAL CVSD/PLL CORDLESS PHONE SYSTEM

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Dual CVSD/PLL Cordless
Phone System
The MC33410 Dual CVSD/Cordless Phone system is designed to fit the
requirements of a 900 MHz digital cordless telephone system. The device
contains a CVSD (Continuously Variable Slope Delta
Modulator/Demodulator) Encoder to digitize the speech for the RF
transmission, and a CVSD Decoder to reconstruct the received digital
speech from the RF receiver. Provisions are made to transmit and receive
data as well. Included are three PLLs (Phase–Locked Loops). Two are
intended for use with external VCOs and 64/65 or 128/129 dual modulus
prescalers, and can control the transmit and receive (LO1) frequencies for
the 900 MHz communication. The third PLL is configured as the 2nd local
oscillator (LO2), and is functional to 80 MHz. Also included are muting, audio
gain adjust (internal and external), low battery/carrier detect, and a wide
range for the PLL reference frequency. The power supply range is 2.7 to
5.5 V. A data only (non–voice) mode is also included.
Two Complete CVSD Sections for Full Duplex Operation
Two PLLs and an LO Suitable for a 900 MHz System
Adjustable Detection for Low Battery or Carrier Signal (RSSI)
Minimal External Components
Encode Path Includes Adjustable Gain Amplifiers, Filters, Mute, CVSD
Encoder, Data Insert, and Scrambler
Decoder Path Contains Data Slicer, Clock Recovery, Descrambler, Data
Detect, CVSD Decoder, Filters, Mute and Power Amplifier
Data can be Transmitted During Voice Conversation with Minimal or No
Noticeable Audio Disruption
Idle Channel Noise Control
Independent Power Amplifier with Differential Outputs, Mute
Selectable Frequency for Switched Capacitor Filters, CVSD Function,
PLLs, and the LO
Reference Frequency Source can be a Crystal or System Clock
Serial µP Port to Control Gain, Mute, Frequency Selection, Phase
Detector Gain, Power Down Modes, Idle Channel Control, Scrambler
Operation, Low Battery Detect, and Others
Mode Available for Data Only Transmission (non–voice)
Ambient Temperature Range: –40 to 85_C
Power Supply Range: 2.7 to 5.5 V
Power Down Modes for Power Conservation
48 Pin LQFP with 0.5 mm Lead Pitch
MC33410
DUAL CVSD/PLL
CORDLESS PHONE
SYSTEM
SEMICONDUCTOR
TECHNICAL DATA
FTA SUFFIX
PLASTIC PACKAGE
CASE 932
(LQFP–48)
ORDERING INFORMATION
Device
Operating
Temperature
Package
XC33410FTA
–40° to +85°C
LQFP–48
This document contains information on a product under development. Motorola reserves the
rigMhtOtoTcOhaRnOgeLoAr dRiscFo/nItFinuDeEthVisICprEoduDcAt wTitAhout notice.
© Motorola, Inc. 1998
Rev 0
1


Motorola Electronic Components Datasheet

MC33410 Datasheet

DUAL CVSD/PLL CORDLESS PHONE SYSTEM

No Preview Available !

MC33410
Simplified Block Diagram
Analog
Speech
Analog
Speech
Gain
Adj.
Ref
CVSD
Decoder
Anti–Alias
LPF
LP Filter
Dec.
Clock
SC
Gain
Adj.
SC
Mute LP Filter
Mute CVSD
Encoder
Encode
Clock
Data Det.
Register
Idle
Channel
SC
Mute
Programmable
Counters
Data
Register
Descrambler
Scrambler
Idle
Channel
Clock
Recovery
Data
Slicer
Power
Amp
–1
Ref
LO
PLL PLL 2nd
#1 #2 LO
MPU
Interface
Low
Batt
/CD
VCO+
Ref. 64/65
VCO+
64/65
LPF Tank
Freq. PreScaler PreScaler
MPU
Digital
Speech/
Data Out
Data
Out
Digital
Speech/
Data In
Dec.
Clock
Status
Low
Battery/
CD
PRELIMINARY SPECIFICATIONS (Subject to change)
Parameter
Supply Voltage
Supply Current (All sections active)
Remote Gain Adjust Range
Receive Path Gain Control Range
Output Current Capability (PAO+, PAO–)
Max. 2nd LO frequency
Phase Detector Charge Pump Output Current
High
Low
Digital Input Signal Amplitude to Data Slicer
Operating Ambient Temperature
NOTE: 1. Above specs represent design objectives, and are subject to change.
Symbol
Min Typ Max
– 2.7 to 5.5 –
– 13 –
– 16 –
– 28.5 –
± 5.0 –
– 80 –
±400 –
±100 –
– >200 –
– –40 to +85 –
Units
V
mA
dB
dB
mA
MHz
µA
mVpp
°C
2 MOTOROLA RF/IF DEVICE DATA


Part Number MC33410
Description DUAL CVSD/PLL CORDLESS PHONE SYSTEM
Maker Motorola
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MC33410 Datasheet PDF






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