STD-302N-R 429MHz Operation Guide - Circuit Design, Inc.

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OPERATION GUIDE DIMENSIONS OG_STD-302N-R-429M_v10e 10 Circuit Design, Inc.
OPERATION GUIDE PLL IC CONTROL • PLL IC control up to 1200MHz Figure 1 VCO Voltage Controled Oscillator Fin Xf in CLK Data 2kohm 2kohm CLK DATA GND LE 2kohm LE LPF +2.8v Do VCC PLL MB15E03SL PS ZC Vp LD/f out 2kohm LD Reference Oscillator 21.25MHz OSCout OSCin P R STD-302 Control pin name #:Control v oltage = +2.8v STD-302N-R is equipped with an internal PLL frequency synthesizer as shown in Figure 1. The operation of the PLL circuit enables the VCO to oscillate at a stable frequency. Transmission frequency is set externally by the controlling IC. STD-302N-R has control terminals (CLK, LE, DATA) for the PLL IC and the setting data is sent to the internal register serially via the data line. Also STD-302N-R has a Lock Detect (LD) terminal that shows the lock status of the frequency. These signal lines are connected directly to the PLL IC through a 2 kΩ resistor. The interface voltage of STD-302N-R is 2.8 V, so the control voltage must be the same. STD-302N-R comes equipped with a Fujitsu MB15E03SL PLL IC. Please refer to the manual of the PLL IC. The following is a supplementary description related to operation with STD-302N-R. In this description, the same names and terminology as in the PLL IC manual are used, so please read the manual beforehand. OG_STD-302N-R-429M_v10e 11 Circuit Design, Inc.
Page 1 and 2: OPERATION GUIDE UHF Narrow band rad
Page 3 and 4: OPERATION GUIDE GENERAL DESCRIPTION
Page 5 and 6: OPERATION GUIDE Receiver part Item
Page 7 and 8: OPERATION GUIDE 2.8V LD O PLL lock/
Page 9: OPERATION GUIDE BLOCK DIAGRAM OG_S
Page 13 and 14: OPERATION GUIDE • Method of seria
Page 15 and 16: OPERATION GUIDE Figure 3: Timing di
Page 17 and 18: OPERATION GUIDE Cautions • As the

STD-302N-R 429MHz Operation Guide - Circuit Design, Inc.

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