NXP Semiconductors TDA8944J Specification Sheet

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NXP Semiconductors TDA8944J Specification Sheet Manual pdf 8 page image

NXP Semiconductors TDA8944J2 x 7 W stereo BTL audio amplifierProduct specification Rev. 02 — 14 February 2000 8 of 229397 750 06861 © NXP B.V. 2010. 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 impedanceRs = 0 Ω at the input.[2] Supply voltage ripple rejection is measured at the output, with a source impedance R s = 0 Ω at the input. The ripple voltage is a sinewave with a frequency f ripple and an amplitude of 707 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 current as function of supplyvoltage.Fig 4. Quiescent current as function of mode voltage.handbook, halfpage504030201000 4 8 12 16VCC (V)Iq(mA)20MGL954handbook, halfpage504030201000 4 8 12 16VMODE (V)Iq(mA)20MGL955VCC = 12 VTable 8: Dynamic characteristicsVCC = 12 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = 0 V; measured in test circuit Figure 14; audio pass band22 Hz to 22 kHz; unless otherwise specified.Symbol Parameter Conditions Min Typ Max UnitPo output power THD = 10% 6 7 - WTHD = 0.5% 4 5 - WTHD total harmonic distortion Po = 1 W - 0.03 0.1 %G v voltage gain 31 32 33 dBZ i(dif) differential input impedance 70 90 110 kΩVn(o) noise output voltage [1] - 90 120 μVSVRR supply voltage ripple rejection f ripple = 1 kHz [2] 50 65 - dBf ripple = 100 Hzto 20 kHz[2] - 60 - dBVo(mute) output voltage mute mode [3] - - 50 μVαcs channel separation Rs = 0 Ω 50 75 - dB