Showing posts with label chip. Show all posts
Showing posts with label chip. Show all posts
Tuesday, November 4, 2014
Small Single Chip FM Transmitter Circuit Schematic Diagram
Small Single Chip FM Transmitter Circuit Schematic Diagram
The following circuit schematic diagram is the one used for the monophonic FM Transmitter. It is pretty clear seen on the circuit’s schematic that the left and the right signal is mixed before modulate the radio frequency.
Maxim Semiconductor’s MAX2606 is the core of this circuit. It is an integrated circuit which is compact, high-performance intermediate frequency voltage controlled oscillators. The output from this circuit is -21 dBm radiation power, and work with 3 volts power supply, so two small batteries with 1.5 volts each should be enough. You just only need a potentiometer to tune in the frequency within commercial FM broadcast band 88-108 MHz. And that is the best part. The frequency tuning circuitry have been handled by the IC, so you don’t need to bother. External varactor even doesn’t need in this circuit. One of the application that can be used with this circuit, you can extend your mp3/CD player in your room to your portable set around the house. Much more simple than using wires.
Sunday, September 7, 2014
TDA7012T Single chip FM received
Wednesday, September 3, 2014
Chip Divider Wiring diagram Schematic
We can build a divider schema using only a single chip component, a special purpose integrated schema AD532. We can configure the AD532 as a two quadrant divider by connecting the multiplier cell in the feedback loop of the op amp and using the Z terminal as a signal input, as shown in the following figure. For your note, the output error is given approximately by 10 Vεm/ (X1-X2), where εm is the total error specification for the multiply mode and bandwidth by fm x (X1-X2)/10 V, where fm is the bandwidth of the multiplier.
The X input is restricted to negative values to avoid positive feedback. Thus, connect the input to X and the offset null to X2 for single ended negative inputs. For single ended positive inputs (0V to +10V), connect the input to X2 and the offset null to X1. Gain (S.F) and offset (X0) adjustment are recommended as shown and explained in the following table for optimum performance. The useful range in denominator input is approximately 500 mV ≤ (X1-X2) ≤ 10 V for practical reason. If used, the voltage offset adjust (Vos) is trimmed with Z at zero and (X1-X2) at full scale.
Simple Chip Divider Circuit Diagram
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