znbg4000 Zetex Semiconductors plc., znbg4000 Datasheet
znbg4000
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znbg4000 Summary of contents
Page 1
... The ZNBG4000/1 and ZNBG6000/1 contain four and six bias stages respectively. In setting drain current the ZNBG4000/1 two resistors allows individual FET pair control to different levels, the ZNBG6000/1 two resistors split control between two and four FETs ...
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... E Gate Voltage NG f Oscillator Freq. O DRAIN CHARACTERISTICS I Current D Current Change with with Voltage D ZNBG4000, ZNGB6000 ZNBG4001, ZNBG6001 Voltage Change V with with Power Dissipation (T amb QSOP16 QSOP20 =33k ;R =33k ) CAL1 CAL2 CONDITIONS LIMITS Min Typ ...
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... The negative bias voltages specified are generated on-chip using an internal oscillator. Two external capacitors, C 47nF are required for this purpose. 2. The characteristics are measured using two external reference resistors R ground. For the ZNBG4000, resistor R sets the drain current of FETs 1 and 2, resistor R CAL1 ...
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... ZNBG4000 ZNBG4000 ZNBG4001 ZNBG6000 ZNBG6001 TYPICAL CHARACTERISTICS 16 Vcc = (k) cal JFET Drain Current v R 2.4 2.3 2.2 Vcc = 10V 2.1 2 Drain Current (mA) JFET Drain Voltage v Drain Current Note:- Operation with loads > 200µA is not guaranteed. ...
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... The ZNBG devices provide all the bias requirements for external FETs, including the generation of the negative supply required for gate biasing, from the single supply voltage. The diagram above shows a single stage from the ZNBG series. The ZNBG4000/1 contains 4 such stages, the ZNBG6000/1 contains 6. The negative rail generator is common to all devices. ...
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... FETs are operated. Both ZNBG devices CAL1/2 have the facility to program different drain currents into selected FETs. Two R provided. For the ZNBG4000, resistor R sets the drain current of FETs 3 and 4. For the ZNBG6000, resistor R of FETs 1 and 4, resistor R sets the drain current of FETs and 6 ...
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... FETs can no longer be controlled, the drain supply to FETs is shut down to avoid damage to the FETs by excessive drain current. The following diagrams show the ZNBG4000/1 and ZNBG6000/1 in typical LNB applications. Within each FET gain stage the numbering system indicates how the bias stages relate to the application circuits ...
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... ZNBG4000 ZNBG4000 ZNBG4001 ZNBG6000 ZNBG6001 Dual standard or enhanced LNB block diagram. High Gain 4-144 ...
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... CONNECTION DIAGRAMS ZNBG4000 ZNBG4001 ORDERING INFORMATION Part Number Package ZNBG4000Q16 QSOP16 ZNBG4001Q16 QSOP16 ZNBG6000Q20 QSOP20 ZNBG6001Q20 QSOP20 ZNBG4000 ZNBG4001 ZNBG4000 ZNBG6000 ZNBG6001 ZNBG6000 ZNBG6001 Part Mark ZNBG4000 ZNBG4001 ZNBG6000 ZNBG6001 4-145 ...
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... ZNBG4000 ZNBG4001 ZNBG4000 ZNBG6000 ZNBG6001 PACKAGE DIMENSIONS IDENTIFICATION RECESS FOR PIN 1 PIN No.1 QSOP16 PIN Millimetres Inches MIN MAX MIN MAX A 4.80 4.90 0.033 0.039 B 0.635 0.025 NOM C 0.177 0.267 0.007 0.011 D 0.20 0.30 0.008 0.012 E 3.81 3.99 0.15 0.157 F 1.35 1.75 0.053 0.069 G 0.10 0.25 0.004 0.01 J 5.79 6.20 0.228 0.244 K 0° 8° 0° ...