參數(shù)資料
型號(hào)： PCD6003H
廠商： NXP SEMICONDUCTORS
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Digital telephone answering machine chip
中文描述： SPECIALTY TELECOM CIRCUIT, PQFP80
封裝： PLASTIC, QFP-80
文件頁數(shù)： 3/96頁
文件大?。?/td> 385K
代理商： PCD6003H
2001 Apr 17
3
Philips Semiconductors
Product specification
Digital telephone answering machine chip
PCD6003
1
FEATURES
Excellent speech quality at average: 2.6, 3.2 or
5.2 kbits/s Harmony or fixed 16.0 kbits/s P
2
CM
compression rate
High quality music transparent encoding with
16.0 kbits/s P
2
CM
Excellent Background Noise Suppression (BNS)
algorithm for speech quality improvement through
recordingwithreducedbackgroundnoise(availablewith
P
2
CM and Harmony encoding)
Speech compression rate selection: 2.6, 3.2 or
5.2 kbits/s Harmony, 16.0 kbits/s P
2
CM
Speech decompression rate selection: 2.6, 3.2 or
5.2 kbits/s, 16.0 kbits/s P
2
CM
Variable playback speed: 50%, 100% and 200% of real
time
Voice prompt playback
Philips International Language Library (PILL) support
tools available; coding at 2.6, 3.2 or 5.2 kbits/s
Voice operated start message recording (VOX)
Call progress detection by busy tone detection and
programmable silence detection
Recording time of minimum 20 minutes in 4-Mbit flash
memory (at 3.2 kbits/s)
Excellent true full-duplex handsfree performance
provided by Philips ‘phlux’ algorithm
On-hook caller ID detection according to Bell 202 and
V.23 standards, as well as DTMF caller ID support
Caller Alerting Signal (CAS) - caller ID level 2
Dual tone generation for DTMF, melody tones and
information tones
Optional dial tone detection, and optional ringing
detection using hardware Caller Identification (CID)
interface
DTMF detection (for remote control function) with local
echo canceller for high reliability
Digital volume control
Mixed digital/analog adaptive limit and/or level control of
audio input signals
Programmable analog CODEC gain for easy interfacing
Internal 80C51 microcontroller can operate as system
controller; with selectable operating frequencies
between 1 and 21 MHz
Internal 80C51 microcontroller emergency operation
down to 2.2 V eliminates the need for external diallers in
telephone answering machine applications
Standard 80C51 development tools allow fast design of
Man-Machine-Interface (MMI) features
On-board Minimum Shift Keying (MSK) modem for
CT0/CT1 applications
Two integrated differential bit stream Analog-to-Digital
Converters (ADCs) for high quality audio input
Two integrated differential bitstream Digital-to-Analog
Converters (DACs) for high quality audio output
Software selectable auxiliary CODEC input channel
Up to 38 general purpose digital I/O lines (most of them
bidirectional) including I
2
C-bus, available for connection
to keyboard, display, line interface, etc.
On-chip 2-channel time multiplexed 8-bit general
purpose ADC for e.g. parallel set detection and battery
voltage measurement
On-chip 8-bit general purpose DAC for e.g. speaker
amplifier volume control
Day and time stamp possibility using built-in Real-Time
Clock
Flexible speech memory interface for connection of
several types of speech flash memory (serial, CAD or
parallel) and DRAM
I
2
C master/slave bus for peripheral control or I
2
C-bus
speech memory access
Extensive power management support for battery and
emergency operation, also allowing portable (voice
memo) applications
Digital IOM A/u-law interface for Slave or Master mode
operation at various bit rates
Emergency operation from telephone line power only;
microprocessor and DTMF generator continue to
operate in this mode
On-chip software switchable supply voltage for electret
microphone
Single low supply voltage (2.2 to 2.8 V)
Built-in single low-frequency, low-power, crystal or
ceramic resonator oscillator and on-chip PLL to reduce
EMI
Stand-alone operation with low cost PAL, NTSC and
DTMF crystals
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCD6003U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital telephone answering machine chip
PCD-60-1050B 制造商:Mean Well 功能描述:PCD-60 series 60 W 1050 mA 57 V Dimmable LED Driver Module 制造商:Mean Well 功能描述:AC to DC Power Supply Enclosed LED Single Output 34-57 Volts 制造商:Mean Well 功能描述:LED Drivers Power Supplies 59.85W 34-57V 1050mA CC Dimmable LED PS 制造商:Mean Well 功能描述:LED POWER SUPPLY 60W 90 - 135VAC OR 180 - 295VAC IN 500 - 2400MA SLCT CURRENT
PCD-60-1400B 制造商:Mean Well 功能描述:AC to DC Power Supply Enclosed LED Single Output 25-43 Volts 制造商:Mean Well 功能描述:LED POWER SUPPLY 60W 90 - 135VAC OR 180 - 295VAC IN 500 - 2400MA SLCT CURRENT
PCD-60-1750B 制造商:Mean Well 功能描述:AC to DC Power Supply Enclosed LED Single Output 20-34 Volts 制造商:Mean Well 功能描述:LED Drivers Power Supplies 59.5W 20-34V 1750mA CC Dimmable LED PS 制造商:Mean Well 功能描述:LED POWER SUPPLY 60W 90 - 135VAC OR 180 - 295VAC IN 500 - 2400MA SLCT CURRENT
PCD-60-2000B 制造商:Mean Well 功能描述: 制造商:Mean Well 功能描述:LED POWER SUPPLY 60W 90 - 135VAC OR 180 - 295VAC IN 500 - 2400MA SLCT CURRENT
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