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TDA7376PD Scheda tecnica(PDF) 7 Page - STMicroelectronics |
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TDA7376PD Scheda tecnica(HTML) 7 Page - STMicroelectronics |
7 / 14 page TDA7376PD Electrical specifications Doc ID 10260 Rev 3 7/14 The TDA7376PD is equipped with a programmable clipping distortion detector circuitry that allows to signal out the output stage saturation by providing a current sinking into an open collector output (DDOUT) when the total harmonic distortion of the output signal reaches the preset level. The desired threshold is fixed through an external divider that produces a proper voltage level across the THD set pin. Figure 3 shows the THD detection threshold versus the THD set voltage. Since it is essential that the THD set voltage be proportional to the supply voltage, Figure 4 shows its value as a fraction of VCC. The actual voltage can be computed by multiplying the fraction corresponding to the desired THD threshold by the application’s supply voltage. RIN Input impedance differential input Single Ended input 45 40 -- k Ω GV Voltage gain differential input 25 26 27 dB Single Ended input 25 26 27 dB ΔG V Channel gain balance - - - 1 dB EIN Input noise voltage Rg = 600 Ω; "A" weighted Rg = 600 Ω; 22 Hz to 33 kHz - 3 46 μV SVR Supply voltage rejection f = 100 Hz; Vr = 1 Vrms; Rg = 0; f = 10 Hz; Vr = 1 Vrms; Rg = 0; 45 55 -dB BW Power bandwidth (-3dB) 75 - - kHz CMRR Common mode rejection ratio VCM = 1 Vrms input referred 60 - - dB ASB Standby attenuation VSB = 1.5V; PO ref = 1 W 80 90 dB VSB IN Standby input threshold - - - 1.5 V VSB OUT Standby output threshold - 3.5 - - V Isb Standby current consumption VSB = 0V - - 20 μA AM Mute attenuation VM = 1.5 V; POref = 1 W - 85 - dB VM IN Mute in threshold - - - 1.5 V VM OUT Mute out threshold - 3.5 - - V I6 Mute pin current V6 = 0 to VS,; VS max. = 18 V - - 100 μA DDL Distortion detection level (2) -3.5 - - % DDOUT Distortion detector output DC current Output low, sinked current ( Vpin10 = 1.5 V) 1- - mA Output high, leakage current (Vpin10 = VS, @ VSmax = 18 V) -- 10 μA 1. Saturated square wave output 2. See Figure 3 for THD setting. Table 4. Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit |
Codice articolo simile - TDA7376PD_09 |
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Descrizione simile - TDA7376PD_09 |
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