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Description

The ringing FlexiSLIC PBL38772 / PBL38771 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in short loop applications. The PBL 387 72/PBL38771 SLIC has been optimized for low power consumption, low total line interface cost and for a high degree of flexibility in various applications.

Features

• On-chip ringing generation
- Balanced, up to 81 VPeak
- Any waveform
- 5REN ringing load
- Automatic gain control of ring signal (AGC-R)
- Short circuit safe

• Low on-hook power consumption in Active State (65 mW @ VBat = -80 V)

• Automatic current controlled battery switching between on-hook battery (VBat) and talk battery (VTBat)

• Pulse metering and on-hook transmission
• UL-1950 and MTU compliant on-hook line voltage
• 3.3 V compatible logic interface
• Silent or fast polarity reversal
• Programmable Ring-Trip current