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TR130A Datasheet (3) Power on initialization The NJU7305 is not incorporated the power on initialization circuits, so that the internal circuits are not defined when the power is turned on. Therefore all "1" of 8 bits serial data with shift clock and latch pulse (9th clock) are required to set the flat state as eXPlained before. The internal circuits of NJU7305 are initialized by the above operation, then following input will be accepted. TR130A Price
TR130A on stock The input pin (pin l) is a virtual ground with nega- tive feedback provided internally (see Figure 6, Page 4). The input resistor (shown as 20 k ] in Figure 3, Page 3) should be scaled to convert the available ac input volt- age to a current within the linear range of the device. (Peak input currents should be kept under l mA for best distortion performance.) An additional consider- ation is stability: the internal op amp is intended for operation with source impedances ofless than 30 kl at high frequencies. For most audio applications, this will present no problem. SmartDAATM technology (patent pending) eliminates the need for a costly analog transformer, relays, and opto-isolators that are typically used in discrete DAA implementations. The programmable SmartDAA architecture simplifies product implementation in worldwide markets by eliminating the need for country-specific components. |
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