Le79R70
FEATURES
- Ideal for ISDN-TA and set top applications
- On-chip ringing with on-chip ring-trip detector
- Low Standby state power
- Battery operation:
- VBAT1:
- 40 V to
- 67 V
- VBAT2:
- 19 V to VBAT1
- On-chip battery switching and feed selection
- On-hook transmission
- Polarity reversal option
- Programmable constant-current feed
- Programmable open circuit voltage
- Programmable loop-detect threshold
- Current gain = 1000
- Two-wire impedance set by single ponent
- Ground-key detector
- Tip Open state for ground-start lines
- Internal VEE regulator (no external
- 5 V power supply required)
- Two on-chip relay drivers and snubber circuits
- Space-saving package options (8x8 QFN)
RELATED LITERATURE
ORDERING INFORMATION
Device1
Package Type2, 3
Le79R70DJC
32-pin PLCC, No Pol. Rev. (Green package)
Le79R70-1DJC
32-pin PLCC, Pol. Rev. (Green package)
Le79R70-1FQC
32-pin QFN, Pol. Rev. (Green package)
Packing4 Tube Tube Tray
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