78P2241B-IGT/F

78P2241B-IGT/F Datasheet

Part	Datasheet
78P2241B-IGT/F	78P2241B-IGT/F (pdf)

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The 78P2241B is a line interface transceiver IC for E3, DS3, STS-1, NA T3 and ATM applications. It includes clock recovery and transmitter pulse shaping functions for applications using 75-ohm coaxial cable at distances up to 1100 feet. These applications include DSLAMs, digital multiplexers, SONET Add/Drop multiplexers, PDH equipment, DS3 to Fiber optic and microwave modems and ATM WAN access for routers and switches. The receiver recovers clock and data from a B3ZS or HDB3 coded AMI signal. It can compensate for over 12dB of cable and 6dB of flat loss. The transmitter generates a signal that meets the standard pulse shape requirements. The 28-pin PLCC 78P2241B is pin and functionally compatible to the 78P7200L and the 78P2241 28 PLCC version . The 78P2241B in the 48-pin TQFP is pin compatible with the 78P2241 in the same package. To the 78P7200L functionality, it adds a B3ZS/HDB3 ENDEC, line code violation detector, loop-back and clock polarity selection as well as ability to receive a DSX3 monitor signal. The line code violation detector has been added to the 78P2241 functionality. The 78P2241B is manufactured in an advanced BICMOS process and operates at both 5V and V power supply voltages. It consumes less than 110 mA of supply current. BLOCK DIAGRAM 78P2241B E3/DS3/STS-1 Line Interface Unit DATA SHEET JULY 2005 • Single chip transmit and receive interface for E3, DS3 and STS-1 applications. • Interface to 75 ohm coaxial cable over 1100 feet at speeds up to Mbps. • Compliant with ANSI T1.102-1993, Telcordia GR-499-CORE and GR-253-CORE, ITU-T G.703, G.823 for jitter tolerance, and G.775 for loss of signal. • Compliant with ATM FORUM af-phy-0034 E3 public UNI and af-phy-0054 DS3 public UNI . • Easily Interfaced to ATM framer ICs such as PMC 7345 , 7346 QJET and • Unique clock recovery requires no reference clock or crystal oscillator. • Receive DS3-high and DSX3 monitor signals • Includes diagnostic loop-back for AMI and digital signals. • Includes a selectable B3ZS/HDB3 ENDEC. • Pin compatible to 78P7200 28-lead PLCC and 78P2241. • 28-lead PLCC and 48-lead TQFP packages • or 5 V operation, ICC<110mA • Input circuit works either Transformer or Capacitor coupled • Line-code violation detector LPBK LBO TXEN TPOS TNEG TCLK B3ZS / HDB3 Encoder RPOS RNEG RCLK B3ZS / HDB3 Decoder PULSE SHAPER Data Slicer Clock Recovery Adaptive Equalizer Biasing Signal Detector LOUTP LOUTN LINP LINN LF LPBK RFO LOS MON Page 1 of 23 2005 Teridian Semiconductor Corporation FUNCTIONAL DESCRIPTION The 78P2241B is a single chip line interface IC designed to work with a Mbit/s STS-1, Mbit/s DS3 or Mbit/s E3 signal. The receiver recovers clock, positive data and negative data from an Alternate Mark Inversion AMI signal. The AMI line input signal should be B3ZS or HDB3 coded. The transmitter accepts clock, positive, and negative data and converts them into an AMI signal to drive a coaxial cable. The shape of the transmitted signal though any cable length of 0 to 450 feet complies with the published templates of ANSI T1.102-1993, Telcordia TR-NWT-000499 and GR253-CORE, ITU-T G.703. The 78P2241B is designed to work with B3ZS or HDB3 coded signals. The B3ZS or HDB3 encoding and decoding functions are normally included in the framer ICs however, a selectable B3ZS/HDB3 ENDEC is included in the 78P2241B for interface to binary NRZ data. The 78P2241B is designed to easily connect to popular ATM framer ICs such as PMC 7345 SUNI-PDH , PMC 7346 QJET and OPERATION SPEED Internal bias generators that are adjusted by the value of the RFO set the 78P2241B PLL center frequency and Transmitter amplitude for the different standards. The E# pin controls the equalizer response and the transmitter pulse shape and amplitude. The following table shows the proper settings. ORDERING INFORMATION PART DESCRIPTION 28-pin PLCC 28-pin PLCC lead free 48-pin TQFP 48-pin TQFP lead free ORDER NUMBER 78P2241B-IH 78P2241B-IH/F 78P2241B-IGT 78P2241B-IGT/F PACKAGE MARK 78P2241B-IH 78P2241B-IH 78P2241B-IGT 78P2241B-IGT No responsibility is assumed by Teridian Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of Teridian Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. Accordingly, the reader is cautioned to verify that the data sheet is current before placing orders. Teridian Semiconductor Corp., 6440 Oak Canyon Rd., Irvine, CA 92618-5201 TEL 714 508-8800, FAX 714 508-8877, Page 23 of 23 2005 Teridian Semiconductor Corporation

PDF Datasheet Preview

The 78P2241B is a line interface transceiver IC for E3, DS3, STS-1, NA T3 and ATM applications. It includes clock recovery and transmitter pulse shaping functions for applications using 75-ohm coaxial cable at distances up to 1100 feet. These applications include DSLAMs, digital multiplexers, SONET Add/Drop multiplexers, PDH equipment, DS3 to Fiber optic and microwave modems and ATM WAN access for routers and switches.

The receiver recovers clock and data from a B3ZS or HDB3 coded AMI signal. It can compensate for over 12dB of cable and 6dB of flat loss. The transmitter generates a signal that meets the standard pulse shape requirements.

The 28-pin PLCC 78P2241B is pin and functionally compatible to the 78P7200L and the 78P2241 28 PLCC version . The 78P2241B in the 48-pin TQFP is pin compatible with the 78P2241 in the same package. To the 78P7200L functionality, it adds a B3ZS/HDB3 ENDEC, line code violation detector, loop-back and clock polarity selection as well as ability to receive a DSX3 monitor signal. The line code violation detector has been added to the 78P2241 functionality.

The 78P2241B is manufactured in an advanced BICMOS process and operates at both 5V and V power supply voltages. It consumes less than 110 mA of supply current.

BLOCK DIAGRAM
78P2241B E3/DS3/STS-1 Line Interface Unit

DATA SHEET

JULY 2005
• Single chip transmit and receive interface for E3, DS3 and STS-1 applications.
• Interface to 75 ohm coaxial cable over 1100 feet at speeds up to Mbps.
• Compliant with ANSI T1.102-1993, Telcordia GR-499-CORE and GR-253-CORE, ITU-T G.703, G.823 for jitter tolerance, and G.775 for loss of signal.
• Compliant with ATM FORUM af-phy-0034 E3 public UNI and af-phy-0054 DS3 public UNI .
• Easily Interfaced to ATM framer ICs such as PMC 7345 , 7346 QJET and
• Unique clock recovery requires no reference clock or crystal oscillator.
• Receive DS3-high and DSX3 monitor signals
• Includes diagnostic loop-back for AMI and
digital signals.
• Includes a selectable B3ZS/HDB3 ENDEC.
• Pin compatible to 78P7200 28-lead PLCC
and 78P2241.
• 28-lead PLCC and 48-lead TQFP packages
• or 5 V operation, ICC<110mA
• Input circuit works either Transformer or

Capacitor coupled
• Line-code violation detector

LPBK LBO TXEN

TPOS TNEG TCLK

B3ZS / HDB3 Encoder

RPOS RNEG

RCLK

B3ZS / HDB3 Decoder

PULSE SHAPER

Data Slicer

Clock Recovery

Adaptive Equalizer

Biasing

Signal Detector

LOUTP LOUTN

LINP LINN

LF LPBK RFO

LOS MON

Page 1 of 23
2005 Teridian Semiconductor Corporation

FUNCTIONAL DESCRIPTION

The 78P2241B is a single chip line interface IC designed to work with a Mbit/s STS-1, Mbit/s DS3 or Mbit/s E3 signal. The receiver recovers clock, positive data and negative data from an Alternate Mark Inversion AMI signal. The AMI line input signal should be B3ZS or HDB3 coded.

The transmitter accepts clock, positive, and negative data and converts them into an AMI signal to drive a coaxial cable. The shape of the transmitted signal though any cable length of 0 to 450 feet complies with the published templates of ANSI T1.102-1993, Telcordia TR-NWT-000499 and GR253-CORE, ITU-T G.703. The 78P2241B is designed to work with B3ZS or HDB3 coded signals. The B3ZS or HDB3 encoding and decoding functions are normally included in the framer ICs however, a selectable B3ZS/HDB3 ENDEC is included in the 78P2241B for interface to binary NRZ data. The 78P2241B is designed to easily connect to popular ATM framer ICs such as PMC 7345 SUNI-PDH , PMC 7346 QJET and

OPERATION SPEED

Internal bias generators that are adjusted by the value of the RFO set the 78P2241B PLL center frequency and Transmitter amplitude for the different standards. The E# pin controls the equalizer response and the transmitter pulse shape and amplitude. The following table shows the proper settings.
ORDERING INFORMATION

PART DESCRIPTION 28-pin PLCC
28-pin PLCC lead free 48-pin TQFP
48-pin TQFP lead free

ORDER NUMBER 78P2241B-IH 78P2241B-IH/F 78P2241B-IGT
78P2241B-IGT/F

PACKAGE MARK 78P2241B-IH 78P2241B-IH
78P2241B-IGT
78P2241B-IGT

No responsibility is assumed by Teridian Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of Teridian Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. Accordingly, the reader is cautioned to verify that the data sheet is current before placing orders.

Teridian Semiconductor Corp., 6440 Oak Canyon Rd., Irvine, CA 92618-5201 TEL 714 508-8800, FAX 714 508-8877,

Page 23 of 23
2005 Teridian Semiconductor Corporation

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 78P2241B-IGT/F Datasheet file may be downloaded here without warranties.

Datasheet ID: 78P2241B-IGT/F 647141