73M1903 Product Brief Modem with Integrated Hybrid Circuitry

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73M1903 Product Brief Modem with Integrated Hybrid Circuitry

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Single-Chip Analog Front
73M1903 Product Brief
Modem with Integrated Hybrid Circuitry
73M1903 single-chip analog front (AFE) that's ideal RISC-based soft modem applications such multi-function peripherals (MFPs), game consoles, Internet appliances, set-top boxes. offers complete array features designed reduce external component count.
Reduced Component Count
device eliminates need dedicated crystal oscillator with flexible PLL, 16-bit CODEC, differential hybrid circuitry, GPIO pins, integrated control.
Programmable Sample Rates
73M1903 programmed various sample rates support modem standards operating speeds from 600bps 56Kbps.
Compatible with 73M2901CL
distinctive feature this device compatibility with TDK's flagship V.22bis hard modem, 73M2901CL. also ability support third party high speed data pumps same PCB. This offers customers cost effective method configure high-speed modem solutions same system well risk-free migration path from hard soft modems.
Features
Single-chip Analog Front
Fully Differential Hybrid Circuitry
Having fully differential hybrid circuitry improves signal-to-noise ratio performance under receive level conditions, ensures compatibility with standard transformer-based DAA. On-chip registers facilitate management functions including parallel pick-up, ring detection, caller hook control through same serial port used data.
Supports 56kbps (V.92) operation Pin-compatible 73M2901CL embedded modem codec with integrated hybrid Programmable sample rate Supports multiple crystal frequencies user programmable pins Full differential receiver/transmitter Direct interface transformer Compatible with popular DSPs processors
Flexible Configuration
device configured FCC, CTR-21 other worldwide telecommunications standards, operates speeds 600bps 56Kbps. also supports power conservation operating modes seven test modes. Semiconductor's expertise analog mixed-signal technology made possible develop very flexible cost-effective companion RISC processors DSPs embedded communications applications.
Applications
Set-top Boxes (STB) Personal Video Recorders (PVR) Multi-function Peripherals (MFP) Game consoles Terminals AMachines Personal Computers Internet Appliances
73M1903 Block Diagram
(HYBRID) TXAP TXAN
Transmit Drivers/ Filters Receive Mux/ Filters Controls
Analog Sigma Delta
Ref.
SCLK SDIN
RXAP RXAN
Control Registers
Serial Port
SDOUT
GPIO HOOK
Clocks
Control Logic
Crystal
Multi-mode Modem Analog Front (MAFE) Supports modem data rates from 50bps 56Kbps (V.92) Includes drivers modem hybrid circuit simplify modem designs synchronous serial interface master operation Uses standard serial interface communication Supports optional timing modes Supplies frame sync serial timing clock host Programmable sample rates Various rates supported programming prescaler Fully differential transmitter with high-current transformer drivers Class drivers quiescent current Directly interface transformer through impedance matching resistors Driver current proportional load requirements Fully differential receiver low-noise, low-level reception Cancels common mode noise from environmental sources such power lines Wide receive dynamic range Flexible input reference frequency Accepts range crystal external reference clock values between 9-40MHz. Eliminates need dedicated crystal oscillator most applications tolerant selected pins digital interface pins interfaced level shifting Power supply 3.0v 3.6v Industrial temperature range operating Pacakages 32-pin TQFP pin-compatible with 73M2901CL 20-pin SOIC cost sensitive applications
Semiconductor Corp. 2642 Michelle Tustin, 92780 714-508-8800 (phone) 714-508-8877 (fax) support@tdksemiconductor.com www.tdksemiconductor.com
responsibility assumed Semiconductor Corporation this product infringements patents trademarks other rights third parties resulting from use. license granted under patents, patent rights trademarks Semiconductor Corporation, company reserves right make changes specifications time without notice. Accordingly, reader cautioned verify that data sheet current before placing orders.
2003 Semiconductor Corporation
3/03

73M1903 Product Brief Modem with Integrated Hybrid Circuitry

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