| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
27 pcs
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27 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Supply Current |
The TCA640 from Bourns is an integrated chrominance amplifier suitable for use in SECAM decoders or double standard PAL/SECAM decoder systems. The device features internal switching of standards, controlled by an external DC signal.
Key functionalities include a chrominance amplifier, a 7/8 kHz flip-flop, and an identification circuit for SECAM. It also incorporates a blanking circuit, a burst gating circuit, and a color killer detector. The TCA640 operates with a nominal supply voltage of 12V and a typical supply current of 37mA.
Input signal requirements vary between PAL and SECAM standards, with peak-to-peak values specified. Output signals include chrominance output, burst output, and a square-wave output. The device is housed in a 16-lead plastic DIL package (SOT-38).
Electrical characteristics include specified ranges for chrominance input and output signals, burst output, system switching signals, and blanking levels. The operating temperature range is -25 to +125 °C, with a storage temperature range of the same limits.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.02 | $2.02 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TCA640 has a nominal supply voltage of 12V and a maximum supply voltage of 13.2V.
The typical supply current for the TCA640 is 37 mA.
The TCA640 is supplied in a 16-lead plastic DIL package, also known as SOT-38.
The operating ambient temperature range for the TCA640 is -25 to +125 °C.
The bandwidth of the chrominance amplifier is 4.2 MHz (-1 dB) at a carrier frequency of 4.2 MHz.