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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TDA8722M датащи(PDF) 3 Page - NXP Semiconductors |
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TDA8722M датащи(HTML) 3 Page - NXP Semiconductors |
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3 / 28 page  1998 Jun 23 3 Philips Semiconductors Product specification I2C-bus programmable modulator for negative video modulation and FM sound TDA8722 QUICK REFERENCE DATA VDDA =VDDD =5V; Tamb =25 °C after the IC has reached thermal equilibrium; unless otherwise specified. Notes 1. Value depends on value of resistor R17 (see Fig.7). 2. Value depends on value of capacitor C17 (see Fig.7). SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VDDA analog supply voltage 4.5 5.0 5.5 V VDDD digital supply voltage 4.5 5.0 5.5 V IDD total supply current normal mode 41 52 63 mA ∆m typical modulation depth range video level (pin 19) = 0.5 V (p-p); note 1; see Fig.10 65 − 90 % ∆P/S typical picture-to-sound level range note 2; see Fig.11 −18 −−10 dB VRF RF output voltage level asymmetrical on a 75 Ω load frequency between 471.25 and 855.25 MHz 77 80 83 dB µV δf FM deviation on audio subcarrier fi = 400 Hz; V1 = 0.5 V (RMS); before pre-emphasis filter 20 25 30 kHz |
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