Intersil HC5503
The HC5503 integrated solution provides higher quality, higher reliability and better performance solution than a transformer, thick film hybrid or discrete analog subscriber interface design. The HC5503 is designed in a Dielectrically isolated bipolar technology and is inherently latch proof and does not require hot plug or power supply sequencing precautions.DESCRIPTION
● Wide Operating Battery Range (-21V to -44V)● Single Additional +5V Supply
● 25mA Short Loop Current Limit
● Ring Relay Driver
● Switch Hook and Ring Trip Detect
● Low On-Hook Power Consumption
● On-Hook Transmission
● ITU-T Longitudinal Balance Performance
● Loop Power Denial Function
● Thermal Protection
● Supports Tip, Ring or Balanced Ringing Schemes
● Low Profile SO and PLCC Surface Mount Packaging
● Pin Compatible with Industry Standard HC5504B SLIC Ordering Information PART NUMBER HC5503CM HC5503CB TEMP. RANGE (oC) 0 to 75 0 to 75 PACKAGE 28 Ld PLCC 24 Ld SOIC PKG. NO. N28.45 M24.3
APPLICATIONS
● Analog Subscriber Line Interfaces in Analog Key Systems and Digital ISDN PABX Systems● Related Literature - AN571, Using Ring Sync with HC-5502A and HC-5504 SLICs Block Diagram RD RING RELAY DRIVER 4-WIRE INTERFACE VF SIGNAL PATH TX RX RFS C2 RING TRIP DETECTOR TIP TF RING RF THERMAL LIMIT VBAT VCC AGND BGND DGND BIAS 2-WIRE INTERFACE LOOP CURRENT DETECTOR LOGIC INTERFACE...