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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.
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Vcc = +2.5V t0 5.5V Commercial (C): Tamb = OIC to +70IC Industrial (l): Tamb =-40IC to +85IC
Parameter Symbol Min Max Units Conditions
SCL and SDA pins: High level input voltage Low level input voltage Input levels on VCLK pin: High level input voltage Low level input voltage Hysteresis of Schmitt trigger inputs VIH VIL VIH VIL VHYS 0.7 Vcc 2.0 .05 Vcc 0.3 Vcc 0.2 Vcc V V V V V Vcc > 2.7V (Note) Vcc < 2.7V (Note) (Note)
Low level output voltage Low level output voltage VOL1 VOL2 0.4 0.6 V V IOL = 3 mA, Vcc = 2.5V (Note) IOL = 6 mA, Vcc = 2.5V
Input leakage current Output leakage current ILI ILO -10 -10 10 10 VIN = O.1V to Vcc VOUT = O.1V to Vcc
Pin capacitance (all inputs/outputs) Cin, Cout 10 pF Vcc = 5.OV (Note) Tamb = 25IC, FCLK = 1 MHz
Operating current lcc Write lcc Read 3 1 mA mA Vcc = 5.5V Vcc = 5.5V, SCL = 400 kHz
Standby current lccs 30 100 Vcc = 3.OV, SDA = SCL = Vcc Vcc = 5.5V, SDA = SCL = Vcc VCLK = Vss


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.