Consumer Electronics IC \ Telecom \ Pro-X CODEC/SLCC

Nuvoton's Pro-X Series (PROgrammable EXtended CODEC/SLCC) supports the FXS telephone line interface optimized for short loop applications up to 4kft. Each device integrates SLCC (Subscriber Line Control Circuit), CODEC as well as DC-to-DC controller functionality on a single piece of silicon. The series includes devices supporting single, dual and quad port FXS . Every device also includes a comprehensive and user friendly set of signaling capabilities required to supervise and control telephone lines, thus offloading processor overhead and offering designers a user-friendly signal processing environment. The wide variety of clocking speeds and schemes supported allow for system integration into virtually any system with little or no additional logic. An on-chip pulse width modulation (PWM) driver allows individual control of the DC-to-DC conversion for each line, optimizing power consumption. Most of all, each device delivers optimal system performance at a competitive cost.

 

Key Features

Performs complete BORSCHT functions on a single deviceInternal balanced ringing up to 90VPK (5REN up to 4kft) Programmable linefeed characteristics Ringing frequency, amplitude, cadence Trapezoidal and sinusoidal waveforms Two-wire AC impedance, transhybrid balance Constant current feed (20 to 41mA) Ring trip and loop closure thresholds Integrated PWM controls line voltage to minimize power dissipationLoop test and diagnostics support

Programmable Signal Generation DTMF generation and detection Metering pulse generation (12/16kHz) Caller ID (FSK) generation Tone generation (up to four simultaneous) G.711 ?-Law/A-Law / 16-bit linear PCM audioProgrammable audio path gainPCM and SPI bus digital interfaces On-chip PLL for flexible clocking options3.3V Small Packages

Benefits
High integration reduces overall system BOM and footprintLow power consumption for battery-backup and other power sensitive applications	High programmability reduces real-time software overheadExtensive line sensing enables diagnostics support

Applications
Analog Telephone AdapterVoice enabled DSL ModemsVoice enabled Cable ModemsResidential VoIP Gateways / RoutersIntegrated Access Devices	Fiber to the Premise/Home (FTTP/H)Optical Network Terminals (ONT)Set Top BoxesWireless Local Loop, PBX, ISDN NT1/TA

Part No.Description FXS
PortsSample Rate DC-to-DC OptionsPackage(mm) Status*Datasheet InductorExt. Bat.Transformer

	Single Channel CODEC/SLCC	1	8kHz	v	v	-	LQFP-48, QFN-48	P
	Dual Channel CODEC/SLCC	2	8kHz	v	-	-	LQFP-64, QFN-64	P
	Quad Channel CODEC/SLCC	4	8kHz	v	v	v	QFP-128	P
	Single Channel CODEC/SLCC Narrowband	1	8kHz	v	v	-	LQFP-48, QFN-48	P
	Single Channel CODEC/SLCC Wideband	1	16kHz	v	v	-	LQFP-48, QFN-48	P
	Dual Channel CODEC/SLCC Narrowband	2	8kHz	v	v	-	TQFP-64	S
	Dual Channel CODEC/SLCC Wideband	2	16kHz	v	v	-	TQFP-64	S

*Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.