ANALOG SIGNAL PROCESSING—DTMF & CALLER ID PRODUCT OVERVIEW DTMF Zarlink’s complete line of DTMF products offer 3 V or 5 V operation, power-down modes, call progress tone detection, parallel and serial microcontroller interface, adjustable tone guard-time and tone detect dynamic range options. A new series of wide dynamic range DTMF receivers utilizing a lower cost and commonly available color burst oscillator enable customers to decrease their overall BoM costs. Our DTMF devices are well-suited for telephone answering machines, fax machines and security systems. MT8888C Receiver Output DTMF Tones Output Amp Delta Sigma D2A Converter Transmit Tone Buffer Transmitter MT8888C DTMF Transceiver Monolithic DTMF transceiver with call progress filter High Group Filter Dial Tone Filter Audio In Receiver section based on industry-standard MT8870 DTMF receiver, transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signaling Internal counters provide a burst mode that allows tone bursts to be transmitted with precise timing Selectable call progress filter allows microprocessor to analyze call progress tones Intel microinterface allows device to be connected to a range of popular microcontrollers with minimal external logic Low Group Filter DTMF Tone Selection Keypad Output Digital Detection Algorithm and Code Converter Output Output Microprocessor Output MT8888C Simplified Block Diagram Caller ID MT8888C Signal Path SLIC Audio Input Input Amp Receive Bandpass Filter Bias Generator FSK Modulator Data and Timing Recovery Data Out Microprocessor Carrier Detect Zarlink’s line of CNIC (Calling Number Identification Circuit) devices support Type-1 and Type-2 CPE features, including VMWI (Visual Message Waiting Indicator), CND (Calling Number Delivery), CNAM (Calling Name Delivery), CIDCW (Calling Identity Delivery on Call Waiting) and ADSI (Analog Display Services Interface). Applications include full feature POTs and VoIP phones, faxes, answering machines, caller ID adjuncts, and DECT systems. MT88E39 Calling Number Identification Circuit (CNIC1.1) Integrated CNIC1.1 provides an interface to calling MT88E39 Simplified Block Diagram line information delivery services that utilize 1200 baud Bell 202 or CCITT V.23 FSK data transmission schemes Receives and demodulates the FSK signal and outputs the data into a simple dual mode 3-wire serial interface, eliminating need for an UART Bellcore, ETSI and NTT compatible and can operate in 3 V and 5 V applications ANALOG SIGNAL PROCESSING—CODECS & SLICs PRODUCT OVERVIEW CODECS The MT8960-7 series of Voice Codecs integrate all functionality necessary to encode/decode voice band analog signals using Pulse Code Modulation (PCM). These codecs are used in a variety of applications including, converged PBXs, Central Offices and digital telephones. MT8960/1/2/3/4/5/6/7 Features MT9092 Line Interface MT9172 ST-Bus Data Telephony DSP Filter/ CODEC Gain Transducer Interface HDLC Timing Circuit New Call Tone Generator Handset Microphone /Speaker ST-BUS compatible Meets AT&T D3/D4 and CCITT G711 and G712 µ-Law: MT8960/62/64/67, A-Law: MT8961/63/65/67 Digital Coding Options: CCITT Code and Alternative Code Digitally controlled gain adjust of both filters Analog and digital loopback Power-down mode available 2.048 MHz master clock input Up to six uncommitted control outputs +/-V +/-5% power supply LCD Driver Serial Port Microprocessor Interface Microprocessor MT9092 Simplified Block Diagram ZL49200 Tip Drive Controller Tip/Ring Over Current Protection Sense Audio Gain & Network Balance Loop Supervision 2-Wire to 4-wire Conversion & Line Impedance Audio Interface CODEC POTS Ring Drive Controller Relay Driver Relay Interface Relay ZL49200 Simplified Block Diagram Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries is believed to be reliable. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. ZARLINK, ZL, ZLE and the Zarlink logo are trademarks of Zarlink Semiconductor Inc. © 2010, Zarlink Semiconductor Inc. All Rights Reserved. Publication Number 10ZS059 www.ZARLINK.com