IDT821611J IDT, Integrated Device Technology Inc, IDT821611J Datasheet - Page 5

• Manufacturer Part Number: IDT821611J
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT821611J

• Number Of Channels: 1
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: -40C to 85C
• Package Type: PLCC
• Operating Temperature Classification: Industrial
• Pin Count: 32
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

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List of Figures
Loop-Detect Threshold Setting .............................................................................................................................................................. 7
Ring-trip Detection ................................................................................................................................................................................. 8
Relay Drivers Schematic........................................................................................................................................................................ 8
DC Feeding Characteristics ................................................................................................................................................................... 8
DC Feed Programming Circuit............................................................................................................................................................... 8
Two-Wire AC Input Impedance Programming Network ....................................................................................................................... 11
Two-Wire Return Loss ......................................................................................................................................................................... 15
Longitudinal Balance............................................................................................................................................................................ 15
Four-Wire Longitudinal Signal Generation........................................................................................................................................... 16
Two-to-Four Wire Gain......................................................................................................................................................................... 16
Four-to-Two Wire Gain and Four-to-Four Wire Gain ........................................................................................................................... 17
Loop Detector Switching ...................................................................................................................................................................... 17
Basic Application Circuit....................................................................................................................................................................... 18
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List of Figures
October 8, 2003