تراشه KA2411 پکیج DIP-8

The is a bipolar integrated circuit designed for telephone bell replacement. 8-DIP-300
Two oscillators Output amplifier Power supply control circuit
FEATURES

Designed for telephone bell replacement Low current drain. Small size ` MINIDIP’package. Adjustable 2-frequency tone. Adjustable warbling rate. Built-in hysteresis prevents false triggering and rotary dial ` CHIRPS’. Extension tone ringer modules. Alarms or other alerting devices. External triggering or ringer disable. (KA2410) Adjustable for reduced initial supply current. (KA2411)

Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC PD T OPR T STG Value Unit mW °C

= 25°C) (All voltage referenced to GND unless otherwise specified)
Characteristic Operating Voltage Initiation Voltage Initiation Current

Symbol VCC VSI ISI VSUS ISUS VTRG ITRG VDIS IDIS VOH VOL II (PIN 3) II (PIN fH2 fL

Test Conditions See Fig. 2 to GND See Fig. 2 No Load VCC = VSUS, See Fig. 2 KA2410 Only VCC 15V KA2410 Only KA2410 Only KA2410 Only VCC = -15mA Pin = 6V, Pin 7 = GND VCC = 15mA Pin 6 = GND, Pin = 6V Pin = 6V, Pin 4 = GND Pin = 6V, Pin 6 = GND = 0.47µF

Sustaining Voltage Sustaining Current Trigger Voltage Trigger Current

Output Voltage High Output Voltage Low Input Current 1 (Pin 3) Input Current 2 (Pin 7) High Frequency 1 High Frequency 2 Low Frequency

NOTE (see electrical characteristics sheet) 1. Initial supply voltage (VSI) is the supply voltage required to start the tone ringer oscillating. 2. Sustaining voltage (VSUS) is the supply voltage required to maintain oscillation. 3. VTR and ITR are the conditions applied to trigger in to start oscillation for VSUS VCC VSI 4. VDIS and lDIS are the conditions applied to trigger in to inhibit oscillation for VSI VCC 5. Trigger current must be limited to this value externally.