MC33411A Datasheet, PDF (1/43 Pages) Motorola, Inc – 900 MHZ ANALOG CORDLESS PHONE BASEBAND WITH COMPANDER

Order this document by MC33411A/D
MC33411A/B
900 MHz Analog Cordless
Phone Baseband with
Compander
The MC33411 900 MHz Analog Cordless Phone Baseband system is
designed to fit the requirements of a 900 MHz analog cordless telephone
system. 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 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” version
devices have programmable MCU clock out and reference oscillator disable
functions, whereas these functions are always enabled for ”B” version
devices.
• Complete Expander/Compressor for Superior Noise Rejection
• Two PLLs and a LO Suitable for a 900 MHz System
• Minimal External Components
• Transmit Path Includes Adjustable Gain Amplifier, Filters, Mute,
Compressor with Bypass and Limiter
• Receive Path Contains Data Slicer, Adjustable Gain Amplifier, Sidetone
Attenuator, Filters, Expander with Bypass, Mute, Volume Control and
Power Amplifier
• Dual A/Ds are Provided to Monitor RSSI and VCC
• Independent Power Amplifier with Differential Outputs and Mute
• Selectable Frequency for Switched Capacitor Filters, 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, Low Battery Detect and Others
• Power Supply Range: 2.7 to 5.5 V
• Power Down Modes for Power Conservation
900 MHz ANALOG
CORDLESS PHONE
BASEBAND
WITH COMPANDER
SEMICONDUCTOR
TECHNICAL DATA
48 1
FTA SUFFIX
PLASTIC PACKAGE
CASE 932
(LQFP–48)
ORDERING INFORMATION
Device
Operating
Temperature
Package
MC33411AFTA
MC33411BFTA
TA = –20 to 70°C
LQFP–48
DS In
RSSI
Tx In
Rx Out
Data
VCC
Slicer
Dual
A/D
Amp/Mute
Compressor
Filter Gain Adj
Filter Sidetone Attn
Mute Expander
Power Amp
Simplified Block Diagram
MCU
Interface
Programmable
Counters
PLL
PLL
2nd
#1
#2
LO
This device contains 11,108 active transistors.
LPF+ VCO +
Prescaler
LPF+ VCO +
Prescaler
LPF
DS Out
Tx Out
Audio In
MCU Clock
Clock
Enable
Data
Tank
LO2 Out
MOTOROLA RF/IF DEVICE DATA
© Motorola, Inc. 1999
Rev 2
1