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| Datasheet File OCR Text: |
| NTE1806 Integrated Circuit Head Amplifier Circuit for 4 Head VCR Features: D Built-in Enveloped Comparing Circuit D Built-in Peaking Amplifier Circuit D Less Noise Voltage Referred to Input: 1Vrms Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Power Dissipation (TA = +70C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW Operating Ambient Temperature, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Electrical Characteristics: (TA = +25C, VCC = 5V unless otherwise specified) Parameter Circuit Current Channel I Gain Channel II Gain Channel III Gain Channel IV Gain AGC Output Amplitude AGC Control Sensitivity Head Switch Changeover Sensitivity Head Amp Switch Changeover Sensitivity Noise Voltage Referred to Input (I) Noise Voltage Referred to Input (II) Noise Voltage Referred to Input (III) Noise Voltage Referred to Input (IV) Envelope Comparative Output Amplitude Envelope Comparative Output Stop Sensitivity Symbol I16 G3-15 G4-15 G8-15 G9-15 20 20 S1 S11 Vni3-15 Vni4-15 Vni8-15 Vni9-15 14 S17 1MHz BFP 1MHz BFP 1MHz BFP 1MHz BFP f = 1MHz f = 1MHz f = 1MHz f = 1MHz f = 4MHz f = 4MHz Test Conditions Min 16 50.5 50.5 50.5 50.5 100 - - - - - - - 4.3 - Typ - - - - - - - - - - - - - - - Max 40 60.5 60.5 60.5 60.5 190 3 1 1 1 1 1 1 - 1.2 Unit mA dB dB dB dB mP-P dB V V Vrms Vrms Vrms Vrms VP-P V Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5 to 5.5V Pin Connection Diagram Head Switch Changeover Bias (I) Input (I) Initial Stage Input (II) Bias (II) Input Stage GND Bias (III) Input (III) Initial Stage Input (IV) Bias (IV) Head Amp Switch Changeover 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 AGC Control Signal Design AGC Reverse Phase Output AGC Output Output Stage GND Peaking Circuit Peak Constant Envelope Comparative Circuit Stop Switch VCC Chroma Output Envelope Comparative Output Side Envelope Detection (III, IV) Side Envelope Detection (I, II) 22 12 1 11 .756 (19.2) .252 (6.4) .177 (4.5) .070 (1.78) .135 (3.43) .300 (7.62) |
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