MT9171AE1 ZARLINK [Zarlink Semiconductor Inc], MT9171AE1 Datasheet

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MT9171AE1

Manufacturer Part Number
MT9171AE1
Description
Digital Subscriber Interface Circuit Digital Network Interface Circuit
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
Features
Applications
F0o/RCK
DSTo/Do
C4/TCK
CDSTo/
F0/CLD
DSTi/Di
CDSTi/
Full duplex transmission over a single twisted pair
Selectable 80 or 160 kbit/s line rate
Adaptive echo cancellation
Up to 3 km (9171) and 4 km (9172)
ISDN compatible (2B+D) data format
Transparent modem capability
Frame synchronization and clock extraction
Zarlink ST-BUS compatible
Low power (typically 50 mW), single 5 V supply
Digital subscriber lines
High speed data transmission over twisted wires
Digital PABX line cards and telephone sets
80 or 160 kbit/s single chip modem
RegC
MS0
MS1
MS2
CDo
CDi
Transmit
Interface
Control
Register
Transmit/
Clock
Receive
Timing &
Control
Status
Interface
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Receive
Phase Locked
Master Clock
Sync Detect
Transmit
Timing
Receive
Copyright 1999-2006, Zarlink Semiconductor Inc. All Rights Reserved.
Prescrambler
Prescrambler
DPLL
De-
Figure 1 - Functional Block Diagram
Zarlink Semiconductor Inc.
V
Scrambler
DD
Error
Signal
ISO
V
Descrambler
SS
Echo Canceller
1
Address
2
V
Description
The MT9171 (DSIC) and MT9172 (DNIC) are pin for
pin compatible replacements for the MT8971 and
MT8972, respectively. They are multi-function devices
capable of providing high speed, full duplex digital
transmission up to 160 kbit/s over a twisted wire pair.
They use adaptive echo-cancelling techniques and
transfer data in (2B+D) format compatible to the ISDN
basic rate. Several modes of operation allow an easy
interface
including use as a high speed limited distance modem
-CMOS ST-BUS FAMILY MT9171/72
Bias
Echo Estimate
Digital Subscriber Interface Circuit
MT9171/72AE
MT9171/72AN
MT9171/72AP
MT9171/72APR
MT9171/72ANR
MT9171/72AE1
MT9171/72AP1
MT9171/72AN1
MT9171/72APR1 28 Pin PLCC*
MT9171/72ANR1 24 Pin SSOP*
V
Ref
Digital Network Interface Circuit
Encoded Biphase
+
Differentially
Transmitter
to
Encoded Biphase
Differentially
digital
Receive
Receiver
Ordering Information
Filter
*Pb Free Matte Tin
-40°C to +85°C
22 Pin PDIP
24 Pin SSOP
28 Pin PLCC
28 Pin PLCC
24 Pin SSOP
22 Pin PDIP*
28 Pin PLCC*
24 Pin SSOP*
telecommunication
V
Bias
Line Driver
Transmit
Filter &
+2
-1
MUX
Tubes
Tubes
Tubes
Tape & Reel
Tape & Reel
Tubes
Tubes
Tubes
Tape & Reel
Tape & Reel
Data Sheet
networks
March 2006
Precan
OSC2
OSC1
L
L
L
DIS
IN
OUT
OUT

Related parts for MT9171AE1

MT9171AE1 Summary of contents

Page 1

Features • Full duplex transmission over a single twisted pair • Selectable 80 or 160 kbit/s line rate • Adaptive echo cancellation • (9171) and 4 km (9172) • ISDN compatible (2B+D) data format • Transparent ...

Page 2

Both devices function identically but with the DSIC having a shorter maximum loop reach specification. The generic "DNIC" will be used to reference both devices unless otherwise noted. The MT9171/72 is fabricated in ...

Page 3

Pin Description (continued) Pin # Name CDSTi/ Control/Data ST-BUS In/Control/Data In (Digital). A 2.048 Mbit/s serial control CDi & signalling input in DN mode. In MOD mode this is a continuous bit stream at ...

Page 4

DSTi DSTo F0o Channel Time 0 Figure Port - 80 kbit/s (Modes DSTi ...

Page 5

Functional Description The MT9171/ device which may be used in practically any application that requires high speed data transmission over two wires, including smart telephone sets, workstations, data terminals and computers. The device supports the 2B+D channel format ...

Page 6

DSTo ...

Page 7

CDSTo CDSTi F0o 3.9 µsec 62.5 µsec Channel Time 0 CLD TCK ...

Page 8

Receive Interface separates the channels and outputs them to the proper ports in the proper channel times. The destination of the various channels is the same as that received on the input DV and CD ports. The ...

Page 9

Mode - SLAVE The chip timebase is extracted from the received line data and the external 10.24 MHz SLV crystal is phase locked provide clocks for the entire device and are output for the external system to ...

Page 10

In MOD mode, DUAL port operation must be used and the D, B1 and B2 channel designations no longer exist. The selection of SLV or MAS will determine which of the DNICs is using the externally supplied clock and which ...

Page 11

CD Port (CDSTi/CDi, CDSTo/CDo) The CD port is a serial bidirectional port used only in DUAL port mode means by which the DNIC receives its control information for things such as setting the bit rate, enabling internal ...

Page 12

Reg Sel-1 Reg Sel-2 Bit Name 2 6 ATTACK Convergence Speedup. When set to ’1’, the echo canceller will converge to the reflection coefficient much faster. Used on power-up for fast convergence. canceller will require the ...

Page 13

Reg Sel-1 Reg Sel-2 Bit Name 1 4 FUN Force Unsync. When set to ’1’, the DNIC is forced out-of-sync to test the SYNC recovery circuitry. When set to ’0’, the operation continues in synchronization. 1 ...

Page 14

In MOD mode, the CD port is no longer an ST-BUS but is a serial bit stream operating at the bit rate selected. It continues to transfer the C-channel but the D-channel and the HK bit no longer exist. DUAL ...

Page 15

Bits Bit 7 Bit 6 Data 1 1 NRZ Data Differential Encoded Differential Encoded Biphase Transmit Line Signal Note: Last bit sent was a logic SYNC OUT 7 0 Figure 11 - Frame Format ...

Page 16

F0 SYNC HK0 OUT Figure 12 - Frame Format - 160 kbit/s (Modes Applications Typical connection diagrams are shown in Figures 13 and 14 for the DN mode ...

Page 17

MT9171/72 DSTi DV Port ST-BUS { DSTo L OUT CDSTi { CD Port ST-BUS CDSTo F0 { Master Clocks C4 MS0 Mode Select MS1 Lines OSC1 MS2 0.33 µ OSC2 Ref V Bias 0.33 µF Figure 14 ...

Page 18

Absolute Maximum Ratings** - Voltages are with respect to ground (V Parameter 1 Supply Voltage 2 Voltage on any pin (other than supply) 3 Current on any pin (other than supply) 4 Storage Temperature 5 Package Power Dissipation (Derate 16mW/ ...

Page 19

DC Electrical Characteristics - Voltages are with respect to ground (V Characteristics 11 Input High Voltage (ex OSC1) 12 Input Low Voltage (ex OSC1) 13 Input High Voltage (OSC1 Input Low Voltage (OSC1 ...

Page 20

AC Electrical Characteristics - Clock Timing - DN Mode (Figures 16 & 17) Characteristics 1 C4 Clock Period 2 C4 Clock Width High or Low 3 Frame Pulse Setup Time 4 Frame Pulse Hold Time 5 Frame Pulse Width ...

Page 21

AC Electrical Characteristics - Clock Timing - MOD Mode (Figure 18) Characteristics 1 TCK/RCK Clock Period 2 TCK/RCK Clock Width 3 TCK/RCK Clock Transition Time 4 CLD to TCK Setup Time 5 CLD to TCK Hold Time 6 CLD ...

Page 22

AC Electrical Characteristics - Data Timing - DN Mode (Figure 19) Characteristics 1 DSTi/CDSTi Data Setup Time 2 DSTi/CDSTi Data Hold Time 3a DSTo/CDSTo Data Delay 3b DSTo/CDSTo High Z to Data Delay † Timing is over recommended temperature ...

Page 23

Performance Characteristics of the MT9172 DNIC Characteristics 1 Allowable Attenuation for Bit Error -6 Rate of 10 (Note 1) 2 Line Length at 80 kbit/s -24 AWG -26 AWG 3 Line Length at 160 kbit/s -24 AWG -26 AWG Note ...

Page 24

TCK 0.4V 2.0V Di CDI 0. 2.4V CDo 0.4V RCK 2.4V Do 0.4V Figure 21 - Data Timing for Slave Modem Mode MT9171/ ¼ Zarlink Semiconductor Inc. Data Sheet t ...

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For more information about all Zarlink products Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in ...

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