This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils and inductors. The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored. It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc.
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Requires very few external components? Input mute during switch-on and switch-off? Low offset voltage between output and ground? Excellent gain balance of both amplifiers? Short-circuit proof and thermal protected? Mute possibility. They have been especially designed for mains fed applications, such as stereo radio and stereo TV.
SOT; August V ref3 10 k? The circuit is optimally designed for symmetrical power supplies, but is also well-suited to asymmetrical power supply systems. The gain is internally fixed at 30 dB, thus offering a low gain spread and a very good gain balance between the two amplifiers 0. A special feature is the input mute circuit. The circuit features suppression of unwanted signals at the inputs, during switch-on and switch-off.
The mute circuit can also be activated via pin 2. When a current of ? A is present at pin 2, the circuit is in the mute condition. The device is provided with two thermal protection circuits. One circuit measures the average temperature of the crystal and the other measures the momentary temperature of the power transistors. With the derating value of 2. Note to the limiting values 1. UNIT 16 2. V mA mV? THD B Gv? A output voltage mute input impedance total quiescent current noise output voltage supply voltage ripple rejection offset voltage with respect to operating position current if pin 2 is connected to pin 5 0.
V dB mV mA Notes to the characteristics 1. See Fig. The power bandwidth is measured at an output power of PO max? The ripple voltage mV is applied in phase to the positive and the negative supply rails. The internal network at pin 2 is a resistor devider of typical 4 k? At the connection of the 4 k? The spread of the zener voltage is 6. RS ? MCD - 2 Fig.
Plastic or metal protrusions of 0. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities.
In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. The total contact time of successive solder waves must not exceed 5 seconds. If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit.
Repairing soldered joints Apply a low voltage soldering iron less than 24 V to the lead s of the package, below the seating plane or not more than 2 mm above it.
This data sheet contains target or goal speci? This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains? Stress above one or more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the speci? Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the speci? Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
Referência e Circuito - TDA2616
Philips TDA2616 Datasheet
Stereo Audio Amplifier with TDA2616