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TDA8946J Datasheet(PDF) 8 Page - NXP Semiconductors |
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TDA8946J Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 23 page Philips Semiconductors TDA8946J 2 x 15 W stereo BTL audio amplifier Product specification Rev. 02 — 14 March 2000 8 of 23 9397 750 06863 © Philips Electronics N.V. 2000. All rights reserved. 12. Dynamic characteristics [1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a source impedance RS =0 Ω at the input. [2] Supply voltage ripple rejection is measured at the output, with a source impedance RS =0 Ω at the input. The ripple voltage is a sine wave with a frequency fripple and an amplitude of 700 mV (RMS), which is applied to the positive supply rail. [3] Output voltage in mute mode is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, so including noise. Fig 3. Quiescent supply current as function of supply voltage. Fig 4. Quiescent supply current as function of mode voltage. handbook, halfpage 50 40 30 20 10 0 04 8 12 16 VCC (V) Iq (mA) 20 MGU005 handbook, halfpage 50 40 30 20 10 0 04 8 12 16 VMODE (V) Iq (mA) 20 MGU006 VCC = 18 V 12 V Table 8: Dynamic characteristics VCC =18V; Tamb =25 °C; RL =8 Ω; f = 1 kHz; VMODE = 0 V; measured in test circuit Figure 14; audio pass band 22 Hz to 22 kHz; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Po output power THD = 10% 13 15 - W THD = 0.5% 10 11.5 - W THD total harmonic distortion Po = 1 W - 0.03 0.1 % Gv voltage gain 31 32 33 dB Zi(dif) differential input impedance 70 90 110 k Ω Vn(o) noise output voltage [1] - 90 120 µV SVRR supply voltage ripple rejection fripple = 1 kHz [2] 50 65 - dB fripple = 100 Hz to 20 kHz [2] -60 - dB Vo(mute) output voltage mute mode [3] --50 µV αcs channel separation RS =0 Ω 50 75 - dB |
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