onsemi CS209A
The CS209A is a bipolar monolithic integrated circuit for use in metal detection/proximity sensing applications. The oscillator, along with an external LC network, provides controlled oscillations where amplitude is highly dependent on the Q of the LC tank. The peak demodulator senses the negative portion of the oscillator envelope and provides a demodulated waveform as input to the comparator.| Part No. | CS209A |
|---|---|
| Datasheet | CS209A Download |
| Manufacturer |  onsemi |
| Description | Proximity Detector |
| Buy | Stock & Price |
FEATURES
● Separate Current Regulator for Oscillator● Negative Transient Suppression
● Variable Low−Level Feedback
● Improved Performance Over Temperature
● 6.0 mA Supply Current Consumption at VCC = 12 V
● Output Current Sink Capability − 20 mA at 4.0 VCC − 100 mA at 24 VCC MARKING DIAGRAMS CS209A AWL YYWW 1 8 SO−8 D SUFFIX CASE 751 1 14 14 1 SO−14 D SUFFIX CASE 751A 1 A WL, L YY, Y WW, W = Assembly Location = Wafer Lot = Year = Work Week CS209A AWLYWW 209A ALYWX 8 DIP−8 N SUFFIX CASE 626 8 1 8 1 ORDERING INFORMATION Device CS209AYN8 CS209AYD8 CS209AYDR8 CS209AYD14 CS209AYDR14 Package DIP−8 SO−8 SO−8 SO−14 SO−14 Shipping 50 Units/Rail 95 Units/Rail 2500 Tape & Reel 55 Units/Rail 2500 Tape & Reel © Semiconductor Components Industries, LLC, 2006 July, 2006 − Rev. 3 1 Publication Order Number: CS209A/D CS209A PIN CONNECTIONS DIP−8 and SO−8 OSC TANK GND OUT1 1 8 RF VCC DEMOD OUT2 OSC TANK GND OUT1 NC OUT2 NC 1 SO−14 14 NC RF VCC NC DEMOD NC NC ΔVBE/R Current Regulator 300 μA VBE/R Current Regulator VCC Oscillator OSC OSC Feedback RF VCC OUT2 4.8 kΩ 23.6 kΩ OUT1 Neg Transient Suppression + DEMOD COMP − TANK GND DEMOD Figure 1.
