znbg3115 Zetex Semiconductors plc., znbg3115 Datasheet
znbg3115
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znbg3115 Summary of contents
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... QSOP 16 and 20 surface mount packages ISSUE 2 - JUNE 2006 ZNBG3115 ZNBG3116 Drain current setting of the ZNBG3115/16 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 3115 gives 2 ...
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... ZNBG3115 ZNBG3116 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 80°C Storage Temperature -50 to 85°C ELECTRICAL CHARACTERISTICS. TEST CONDITIONS (Unless otherwise stated):T amb ...
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... V =15.5V D1 POL I =10mA, V =15.5V D1 POL I =10mA, V =14V D2 POL I =10mA, V =14V D2 POL I =10mA, V =15.5V D3 POL I =10mA, V =15.5V D3 POL 10V CC T =-40 to +80° =0.5V, V =14V D1 POL V =0.5V, V =15.5V D2 POL 3 ZNBG3115 ZNBG3116 LIMITS UNITS MIN. TYP. MAX. -30 2000 NA -2.5 -2.25 -2.0 V -2.5 -2.25 -2.0 V 0.4 0.75 1.0 V -2.5 -2.25 -2.0 V -2.5 -2.25 -2.0 V 0.4 0.75 1.0 V -3.0 -2.75 -2.5 V 0.4 0.75 1 ...
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... ZNBG3115 ZNBG3116 SYMBOL PARAMETER TONE DETECTION CHARACTERISTICS V Filter Amplifier OUT 5 Bias Voltage F Input Impedance inz AG Amplifier Gain Threshold T Output Stage Volt. Range LOV Bias Current LOV Output Low LBL Output High LBH Output Low HBL ...
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... TEST CIRCUIT 1 Note: Same circuit used for QSOP16 option but with adjusted pinout. ISSUE 2 - JUNE 2006 ZNBG3115 ZNBG3116 5 ...
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... ZNBG3115 ZNBG3116 6 ISSUE 2 - JUNE 2006 ...
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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 ZNBG3115/16 contains 3 such stages. The negative rail generator is common to both devices. ...
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... ZNBG3115 ZNBG3116 The following schematic shows the function of the V Q2 are powered at any one time, their selection is controlled by the input V to the power input of the LNB via a high value (10k) resistor. With the input voltage of the LNB set at or below 14V, FET Q2 will be enabled ...
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... For many LNB applications, tone detection for band switching is required. The ZNBG3115/16 includes all the circuitry necessary to detect the presence of a 22kHz tone modulated on the supply input to the LNB. The main elements of the detector are an op-amp, a rectifier/smoother and a comparitor. The op-amp has a pre-set internal feedback resistor so that just a simple RC network wired to the input gives user defined gain and low frequency cut filter characteristics ...
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... The bias circuits are unconditionally stable over the full temperature range with the associated FETs and gate and drain capacitors in circuit. To minimise board space the ZNBG3115/3116 is offered in a QSOP16 package. To reduce the pin count Drain 1 and Drain 2 have been internally connected. This is possible because only one of the two bias stages can biased at one time ...
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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 ZNBG3115/16 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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... ZNBG3115 ZNBG3116 APPLICATIONS Local Oscillator Circuits 12 Figure 1 Figure 2 Figure 3 ISSUE 2 - JUNE 2006 ...
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... QSOP20 ZNBG3116Q20 QSOP20 ISSUE 2 - JUNE 2006 QSOP16 D12 R 2 CAL POL N/C Gnd 6 N/C Cnb1 7 Lov Cnb2 SUB Part Mark ZNBG3115 ZNBG3116 ZNBG3115 ZNBG3116 13 ZNBG3115 ZNBG3116 Rcal 15 Vpol 14 Fin 13 Lov Csub 9 ...
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... ZNBG3115 ZNBG3116 QSOP16 DIM Millimetres Inches MIN MAX MIN A 4.80 4.98 0.189 B 0.635 0.025 NOM C 0.23 REF 0.009 REF D 0.20 0.30 0.008 E 3.81 3.99 0.15 F 1.35 1.75 0.053 G 0.10 0.25 0.004 J 5.79 6.20 0.228 K 0° 8° 0° Conforms to JEDEC MO-137AB Iss A QSOP20 DIM Millimetres MIN MAX A 8.55 0.196 B 0.635 C 1.47 REF D 0.20 0.012 E 3.81 0.157 F 1.35 0.069 G 0.10 0.01 J 5.79 0.244 K 0° ...
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... The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. For the latest product information, log on to www.zetex.com ISSUE 2 - JUNE 2006 ZNBG3115 ZNBG3116 Asia Pacific Corporate Headquarters ...