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MC13146 Datasheet(PDF) 5 Page - Motorola, Inc |
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MC13146 Datasheet(HTML) 5 Page - Motorola, Inc |
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5 / 16 page  MC13146 5 MOTOROLA RF/IF DEVICE DATA PIN FUNCTION DESCRIPTION (continued) Description Description Symbol/Type Pin 13 VCC VCC 13 VCC, Supply Voltage 14 PRSC Out VCC PRSC Out 14 1.0 mA Prescaler Output The prescaler output provides 500 mVpp drive to the Fin Pin of a PLL synthesizer. Conjugately matching the interface will increase the drive delivered to the PLL input. 15 VEE VEE 15 VCC VEE, Negative Supply 16 MC MC 16 Dual Modulus Control Current Input This requires a current input of typically 200 µApp. 17 Enable Enable 17 10 k Transmitter Enable Enable the transmitter by pulling the pin up to VCC. 19 PAout PA Out The output is an open collector of the cascode transistor low power amplifier (LPA); it is externally biased. The output may be conjugately matched with a shunt L, and series L and C network. 20, 21 VEE PAout 19 20 VEE, Negative Supply VEE pin is taken to an ample dc ground plane through a low impedance path. The path should be VEE 20 21 kept as short as possible. A two sided PCB is implemented so that ground returns can be easily made through via holes. 22 PAin 2.0 mA Vref2 Vref1 VEE 21 PAin 22 VCC 23 PA In The input is the base of the common emitter transistor. Minimum external matching is required to optimize the input return loss and gain. 23 VCC CC VCC, Positive Supply VCC pin is taken to the incoming positive battery or regulated dc voltage through a low impedance trace on the PCB. It is decoupled to VEE ground at the pin of the IC. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 |
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