IDT821621J8 IDT, Integrated Device Technology Inc, IDT821621J8 Datasheet
IDT821621J8
Specifications of IDT821621J8
Related parts for IDT821621J8
IDT821621J8 Summary of contents
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... LONG HAUL SLIC IDT821621 Version 1 October 8, 2003 2975 Stender Way, Santa Clara, California 95054 Telephone: (800) 345-7015 • • FAX: (408) 492-8674 Printed in U.S.A. © 2003 Integrated Device Technology, Inc. ...
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Integrated Device Technology, Inc. reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. IDT does not assume any responsibility ...
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... The IDT821621 allows battery feeding between −19 V and −58 V and has the capability for driving long loops. The architecture of operating the SLIC in different states according to different loop states minimizes the system power dissipation. This long haul SLIC is pin-to-pin compatible with AMD7920. It provides a cost-effective solution for PBX and Central Office applications ...
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... Features ....................................................................................................................................................................................................................... 1 Description .................................................................................................................................................................................................................. 1 Functional Block Diagram ......................................................................................................................................................................................... 1 Pin Configuration ........................................................................................................................................................................................................ 5 Pin Description ........................................................................................................................................................................................................... 6 Functional Description ............................................................................................................................................................................................... 7 SLIC States Control ......................................................................................................................................................................................... 7 Off-hook Detector ............................................................................................................................................................................................. 7 Ring-trip Detector ............................................................................................................................................................................................. 7 Relay Drivers Control ....................................................................................................................................................................................... 8 DC Feeding ...................................................................................................................................................................................................... 8 Impedance Matching ........................................................................................................................................................................................ 9 Receive Gain Setting ....................................................................................................................................................................................... 9 Thermal Management ...................................................................................................................................................................................... 9 DC Electrical Characteristics ................................................................................................................................................................................... 10 AC Electrical Characteristics ................................................................................................................................................................................... 11 Test Circuits .............................................................................................................................................................................................................. 15 Basic Application Circuit ......................................................................................................................................................................................... 18 Ordering Information ...
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Figure 1 Loop-Detect Threshold Setting .............................................................................................................................................................. 7 Figure 2 Ring-trip Detection ................................................................................................................................................................................. 8 Figure 3 Relay Drivers Schematic........................................................................................................................................................................ 8 Figure 4 DC Feeding Characteristics ................................................................................................................................................................... 8 Figure 5 DC Feed Programming Circuit............................................................................................................................................................... 8 Figure 6 Two-Wire AC Input Impedance Programming ...
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... Table 1 Pin Description....................................................................................................................................................................................... 6 Table 2 SLIC Operating States ........................................................................................................................................................................... 7 Table 3 Absolute Maximum Ratings ................................................................................................................................................................. 10 Table 4 Recommended Operating Conditions.................................................................................................................................................. 10 Table 5 Transmission Performance .................................................................................................................................................................. 11 Table 6 Longitudinal Capability......................................................................................................................................................................... 11 Table 7 Idle Channel Noise............................................................................................................................................................................... 12 Table 8 Insertion Loss and Balance Return Loss Signal .................................................................................................................................. 12 Table 9 Line Characteristics.............................................................................................................................................................................. 12 Table 10 Power Supply Rejection Ratio (VRipple=100 mVrms), Active State .................................................................................................... 12 Table 11 Power Dissipation ...
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... IDT821621 PIN CONFIGURATION RYOUT2 5 RYOUT3 6 TMG 7 VBAT DET 13 Pin Configuration IDT821621 LONG HAUL SLIC HPB 26 HPA VTX 23 VBREF 22 RSN 21 AGND 19 20 October 8, 2003 ...
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... Positive input to ring-trip comparator. Receive summing node. Transmit output. SLIC state control. TTL compatible MSB and C1 is LSB. Refer to Relay driver control. TTL compatible. D1, D2 and D3 control the relay drivers RYOUT1, RYOUT2 and RYOUT3 respectively. Logic low on D1 activates the RYOUT1 relay driver. Logic low on D2 activates the RYOUT2 relay driver. Logic low on D3 activates the RYOUT3 relay driver ...
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... The Disconnect state is useful for out-of-service lines. ! Ringing When the SLIC is in Ringing state, the ring relay driver (RINGOUT) is activated and the TIP and RING outputs are in high impedance condition. The ringing source is connected by an external ring relay to the line. In Ringing state, the status of the ring-trip detector is reported by the DET pin ...
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... SLIC B(RING) RDC Feed current is programmed by R Figure 5 DC Feed Programming Circuit is calculated by the following equation: FEED 1250 I = ------------------------------------ FEED DC1 DC2 connected to the CAS pin is used to filter CAS LONG HAUL SLIC Note 1 30 ′ and R , DC1 DC2 R DC1 DC2 and R DC1 DC2 ...
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... F 11 for details. Functional Description THERMAL MANAGEMENT the thermal energy from the SLIC to an external resistor R connected between the TMG and VBAT pins as shown in This resistor shares some of the loop current and limits the on-chip power dissipation in Active state. is programmed by means ...
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... Power Supply Voltage VCC +3.3 V nominal +5 V nominal Battery Voltage VBAT DC Electrical Characteristics Com’l & Ind’l -0 0.4 to -70 -0.4 to VCC+0 VBAT 1.7 -65 to +150 500 Min. Max. -40 +85 3.15 3.45 4.75 5.25 -58 -19 10 LONG HAUL SLIC Unit °C V Unit ° October 8, 2003 ...
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... Active state 0 to 100 2350 Ω 27.17 kΩ, R DC1 DC2 TMG C = 120 Min. Typ. Max -50 +50 2.5 0.77 -64 -50 -55 -40 -36 9) Min. Typ. Max LONG HAUL SLIC = 35.4 kΩ Unit Note dB Ω mV Vpk Vrms dB Unit Note dB mArms Ω/pin October 8, 2003 ...
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... L Constant-current region Active, A and B to ground V = -52 V BAT =100 mVrms), Active State Ripple Test Conditions 3.4 kHz 3.4 kHz CAS pin to VBAT 12 LONG HAUL SLIC Min. Typ. Max. 7 +10 +12 -83 -80 -78 Min. Typ. Max. -0.20 +0.20 -6.22 -6.02 -5.82 -0.35 +0 ...
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... Test Conditions RSN 200 Hz to 3.4 kHz Test Conditions Test Conditions I = 0.3 mA, 15 kΩ to VCC OUT I = -0.1 mA, 15 kΩ to VCC OUT Test Conditions Source Resistance = 2 MΩ 13 LONG HAUL SLIC Min. Typ. Max. Unit 100 210 270 mW 930 1200 760 900 Min ...
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... AC Electrical Characteristics Test Conditions (See Figure 12 35.4 kΩ 35.4 kΩ 35.4 kΩ D Test Conditions 100 µ LONG HAUL SLIC Min. Typ. Max. Unit 11.5 17.3 9.4 14 4.4 Min. Typ. Max. Unit +0.3 +0.7 µA 100 9.4 10 Note Note V V October 8, 2003 ...
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... V L Test Circuits (TIP) VTX SLIC AGND (RING) RSN Return Loss = -20 log (2 V Figure 7 Two-Wire Return Loss A (TIP SLIC (RING) Longitudinal to Two-Wire Balance = 20 log (V Longitudinal to Four-Wire Balance = 20 log (VTX / V Figure 8 Longitudinal Balance VTX R T AGND RSN / LONG HAUL SLIC October 8, 2003 ...
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... IDT821621 Test Circuits A (TIP) VTX V SLIC AGND L B (RING) RSN 4-L Long. Sig. Gen log (V L Figure 9 Four-Wire Longitudinal Signal Generation A (TIP) VTX V AB SLIC AGND B (RING) RSN Gain 2 log (VTX / Figure 10 Two-to-Four Wire Gain LONG HAUL SLIC October 8, 2003 ...
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... R L Test Circuits A (TIP) VTX SLIC V AGND AB B (RING) RSN Gain 4 log ( Gain 4 log (VTX / V RX Figure 11 Four-to-Two Wire Gain and Four-to-Four Wire Gain VCC A (TIP) DET R SLIC L B (RING) Figure 12 Loop Detector Switching 6.2 kΩ LONG HAUL SLIC October 8, 2003 ...
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... Basic Application Circuit IDT821621 RINGOUT DA C RT2 C RT1 DB 2 (TIP) HPA C HP HPB B (RING) 2.2 nF RYOUT1 RYOUT2 RYOUT3 BGND VBREF VBAT D 1 TMG R TMG Figure 13 Basic Application Circuit 18 LONG HAUL SLIC +5 V VCC VTX RSN R DC2 R DC1 RDC C DC AGND DET CAS C ...
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... The IDT logo is a registered trademark of Integrated Device Technology, Inc. Ordering Information X X Process/ Package Temperature Range for SALES: 800-345-7015 or 408-727-5116 fax: 408-492-8674 www.idt.com 19 LONG HAUL SLIC Blank Industrial (-40 °C to +85 °C) J Plastic Leaded Chip Carrier (PLCC, PL32) 821621 Long Haul SLIC for Tech Support: 408-330-1552 email:TELECOMhelp@idt.com October 8, 2003 ...