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ISL9492 Datasheet(PDF) 3 Page - Intersil Corporation |
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ISL9492 Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 20 page ISL9492 3 FN6547.0 January 28, 2011 16 SDA Bidirectional data from/to I2C bus. 17 SCL Clock from I2C bus. 18 TXT Tx, Rx switch control 19 EXTM This pin can be used in two ways: 1. To drive TONE with the actual tone signal directly. 2. To drive TONE with the envelope of the actual tone signal to be generate by this device. 20, 25 LDO_SGND Small signal ground for the internal LDO. 21 FLT This is an open drain output from the controller. It will go LOW when any of the fault flags is set. 22 TCAP Capacitor for setting rise and fall time of the output voltage. Typical value is 0.1µF. 23 DGATE Connect to an external PMOS gate to short the RLC tank circuit during 22kHz tone transmission. 24 VOUT Linear regulator output provides the LNB power. 26 VSW Input to the linear regulator that actually provides the LNB output voltage. 27 CPVOUT Output of charge pump. 28 CPSWOUT Charge pump connection 2. - Pad There is no connection with this pin. EPAD also has no connection and should be connected to GND plane with multiple vias. Functional Pin Descriptions (Continued) PIN SYMBOL FUNCTION |
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