znbg3110 Zetex Semiconductors plc., znbg3110 Datasheet
znbg3110
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znbg3110 Summary of contents
Page 1
... Drain current setting of the ZNBG3110/11 is user selectable over the range 0 to 15mA, this is achieved with addition of a single resistor. The series also offers the choice of drain voltage to be set for the FETs, the 3110 gives 2 ...
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... ZNBG3110 ZNBG3111 ABSOLUTE MAXIMUM RATINGS Supply Voltage -0.6V to 12V Supply Current 100mA Input Voltage (V ) 25V Continuous POL Drain Current (per FET 15mA (set CAL Operating Temperature -40 to 70°C Storage Temperature -50 to 85°C ELECTRICAL CHARACTERISTICS. TEST CONDITIONS (Unless otherwise stated):T amb ...
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... ZNBG3111 I =10mA Voltage Change V with 10V with T T =-40 to +70° Leakage Current I Drain 1 V =0.1V Drain 2 V =0.1V ZNBG3110 ZNBG3111 LIMITS MIN. TYP. -30 I GOx ( A) =14 I =-10 -2.7 -2.4 GO1 =15.5 I =-10 -2.7 -2.4 GO1 =15 0.4 0.75 GO1 =15.5 I =-10 -2.7 -2.4 GO2 =14 I =-10 -2 ...
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... ZNBG3110 ZNBG3111 SYMBOL PARAMETER CONDITIONS TONE DETECTION CHARACTERISTICS Filter Amplifier I Input Bias Current R =150k Output Voltage R =150k OUT Output Current V =1.96V, V OUT OUT G Voltage Gain f=22kHz,V V Comparator V Threshold TH 5 Voltage f=0 Output Stage V L Volt. Range I =50mA(L LOV ...
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... TEST CIRCUIT 1 TEST CIRCUIT 2 ZNBG3110 ZNBG3111 V2 Characteristics Type AC source Frequency 22kHz Voltage 350mV p/p enabled 100mV p/p disabled V2 Characteristics Type AC source Frequency 22kHz Voltage 350mV p/p enabled 100mV p/p disabled 4-127 ...
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... ZNBG3110 ZNBG3111 TYPICAL CHARACTERISTICS 16 Vcc = (k) cal JFET Drain Current v R cal 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. 0.0 -0.5 -1.0 Vcc = ...
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... Frequency (Hz) Open Loop Phase v Frequency 1 1.2 V =0.1Vpkpk IN Test Circuit 1 1.0 0.8 0.6 0.4 0.2 0 100 1k 10k 100k 1M Frequency (Hz) Filter Response 4-129 ZNBG3110 ZNBG3111 LOV 70°C amb T = 25°C amb -40°C amb Load Current (mA) LB/HB Offset Voltage v Load Current 2 ...
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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 ZNBG3110/11 contains 3 such stages. The negative rail generator is common to both devices. ...
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... FET number Q3 is always active regardless of the voltage applied POL Control Input Switch Function Input Sense Polarisation Select 14 volts Vertical FET Q2 15.5 volts Horizontal FET Q1 ZNBG3110 ZNBG3111 input. Only one of the two external FETs POL 4-131 . POL ...
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... ZNBG3110 ZNBG3111 For many LNB applications tone detection and band switching is required. The ZNBG3110/11 includes the circuitry necessary to detect the presence of a 22kHz tone modulated on the supply input to the LNB. Referring to the following schematic diagram, the main elements of this detector are an op-amp enabling the construction of a Sallen Key filter, a rectifier/smoother and a comparator ...
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... Should the negative bias generator be shorted or overloaded so that the drain current of the external FETs can no longer be controlled, the drain supply to FETs is shut down to avoid damage to the FETs by excessive drain current. ZNBG3110 ZNBG3111 pin. SUB ...
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... The following block diagram shows the main section of an LNB designed for use with the Astra series of satellites. The ZNBG3110/11 is the core bias and control element of this circuit. The ZNBG provides the negative rail, FET bias control, polarisation switch control, tone detection and band switching with the minimum of external components ...
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... Figure 1 L grounded OV Figure 2 L connected OSC ZNBG3110 ZNBG3111 4-135 ...
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... ZNBG3110 ZNBG3111 CONNECTION DIAGRAM ORDERING INFORMATION Part Number Package Part Mark ZNBG3110Q20 QSOP20 ZNBG3110 ZNBG3111Q20 QSOP20 ZNBG3111 4-136 ...
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... ZNBG3110 ZNBG3111 PACKAGE DIMENSIONS IDENTIFICATION RECESS B FOR PIN 1 PIN No.1 PIN Millimetres Inches MIN MAX MIN MAX A 8.55 8.74 0.337 0.344 B 0.635 0.025 NOM C 1.42 1.52 0.056 0.06 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° 8° Zetex plc. Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom. ...
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