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7442 Datasheet(PDF) 4 Page - STMicroelectronics |
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7442 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 17 page TDA7442 - TDA7442D 4/17 TREBLE CONTROL Gt Control Range Max. Boost/cut +13.0 +14.0 +15.0 dB TSTEP Step Resolution 1 2 3 dB EFFECT CONTROL CRANGE Control Range - 21 - 6 dB SSTEP Step Resolution 0.5 1 1.5 dB SURROUND SOUND MATRIX PHASE RPS10 Phase Shifter 1: D1 = 0, D0 = 0 8.3 11.8 15.2 K Ω RPS11 Phase Shifter 1: D1 = 0, D0 = 1 10 14.1 18.3 K Ω RPS12 Phase Shifter 1: D1 = 1, D0 = 0 12.6 17.9 23.3 K Ω RPS13 Phase Shifter 1: D1 = 1, D0 = 1 26.4 37.3 48.85 K Ω SURROUND SOUND MATRIX TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1 GOFF In-phase Gain (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p, Rin → Rout Lin → Lout -1 0 1 dB DGOFF LR In-phase Gain Difference (OFF) Mode OFF, Input signal of 1kHz, 1.4 Vp-p Rin → Rout, Lin → Lout -1 0 1 dB GMUS In-phase Gain (Music) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin → Rout), (Lin → Lout) 7dB DGMUS LR In-phase Gain Difference (Music) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin → Rout) - (Lin → Lout) 0dB SPEAKER ATTENUATORS Crange Control Range 79 dB SSTEP Step Resolution -0.5 1 1.5 dB EA Attenuation set error Av = 0 to -20dB -1.5 0 1.5 dB Av = -20 to -79dB -3 0 2 dB VDC DC Steps adjacent att. steps -3 0 3 mV AMUTE Output Mute Condition +70 100 dB RVEA Input Impedance 21 30 39 K Ω AUDIO OUTPUTS NO(OFF) Output Noise (OFF) Output Mute, Flat BW = 20Hz to 20KHz 4 5 µVrms µVrms NO(MUS) Output Noise (Music) Mode = Music , BW = 20Hz to 20KHz, 30 mVrms NO(PSEUDO) Output Noise (Pseudo Stereo) Mode = Pseudo Stereo BW = 20Hz to 20KHz, 30 mVrms d Distorsion Av = 0 ; Vin = 1Vrms 0.01 0.1 % SC Channel Separation 70 90 dB VOCL Clipping Level d = 0.3% 2 2.5 Vrms ROUT Output Resistance 10 30 50 Ω Table 5. Electrical Characteristics (continued) Refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, Vin = 1Vrms; RG = 600Ω, all controls flat (G = 0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified. Symbol Parameter Test Condition Min. Typ. Max. Unit |
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