參數(shù)資料
型號(hào)： MC33410FTA
廠商： MOTOROLA INC
元件分類(lèi)： 無(wú)繩電話/電話
英文描述： DUAL CVSD/PLL CORDLESS PHONE SYSTEM
中文描述： TELECOM, CORDLESS, SUPPORT CIRCUIT, PQFP48
封裝： PLASTIC, LQFP-48
文件頁(yè)數(shù)： 1/20頁(yè)
文件大小： 300K
代理商： MC33410FTA
DUAL CVSD/PLL
CORDLESS PHONE
SYSTEM
FTA SUFFIX
PLASTIC PACKAGE
CASE 932
(LQFP–48)
Device
Operating
Temperature
Package
ORDERING INFORMATION
XC33410FTA
–40
°
to +85
°
C
LQFP–48
SEMICONDUCTOR
TECHNICAL DATA
Order this document by MC33410/D
1
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
μ
P 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
This document contains information on a product under development. Motorola reserves the
right to change or discontinue this product without notice.
Motorola, Inc. 1998
Rev 0
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