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TEA6823T Datasheet(PDF) 10 Page - NXP Semiconductors |
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TEA6823T Datasheet(HTML) 10 Page - NXP Semiconductors |
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10 / 48 page  1998 Mar 24 10 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T Unweighted voltage level V50-4 unweighted voltage level see Fig.9; V38 = 2.52 V V37-35 ≤ 2.5 µV 1.6 2.2 3.0 V V37-35 = 1.0 mV 2.7 3.4 4.7 V ∆V 50-4/∆V37-35 slope of unweighted voltage level 100 µV (RMS) ≤ V37-35 < 300 mV temperature compensation off 0.75 0.9 1.05 V/20 dB temperature compensation on 0.6 0.75 0.9 V/20 dB ∆V 50-4/VK temperature dependence V37-35 =1mV temperature compensation off − 5.0 − mV/VK temperature compensation on − 2.0 − mV/VK I50(max)source maximum output source current 0.3 −− mA I50(max)sink maximum output sink current −50 −− µA Ro50 output resistance −− 300 Ω ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmute/AML; note 1 ∆V50 adjusting range voltage V37-35 = 10 mV (RMS) −1.8 − +1.8 V V38-4 internal bias voltage − 2.6 − V ∆V 50-4/∆V38-4 adjusting gain −−0.9 −− Ri38 input resistance − 80 − k Ω MUTING DEPENDENCE ON ADJUST OF LEVEL UNWEIGHTED VOLTAGE; note 2 V43/V47 start of mute V49/V21 = 0.625 1 3 7 dB mute slope V43/V47 = −6dB − 25 − dB/V Soft mute, time constant control, mono/stereo blend and high-cut control; see Fig.22 MUTE VOLTAGE; note 3 V49-4 mute voltage V38 = 2.52 V V37-35 < 2.5 µV 1.8 2.2 3.2 V V37-35 = 1.0 mV 2.7 3.4 4.7 V ∆V 49-4/∆V37-35 slope of mute voltage 100 µV (RMS) ≤ V37-35 < 300 mV 0.75 0.9 1.05 V/20 dB ∆V49-4/VK temperature dependency V37-35 =1mV − 5.0 − mV/VK SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT ∆V 43 V47 ⁄ ∆V 49 -------------------------- |
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