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参数资料
| 型号： | ZNBG3000Q16TC |
| 厂商： | Diodes Inc |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | IC GENERATOR 3BIAS 2.2V 16-QSOP |
| 标准包装： | 2,500 |
| 功能： | 偏压控制器 |
| RF 型： | LNBs，PMR |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
ZNBG3000
ZNBG3001
TYPICAL APPLICATION CIRCUIT
APPLICATIONS INFORMATION
The above is a partial application circuit for the ZNBG series showing all external components
required for appropriate biasing. The bias circuits are unconditionally stable over the full
temperature range with the associated FETs and gate and drain capacitors in circuit.
Capacitors C D and C G ensure that residual power supply and substrate generator noise is not
allowed to affect other external circuits which may be sensitive to RF interference. They also
serve to suppress any potential RF feedthrough between stages via the ZNBG device. These
capacitors are required for all stages used. Values of 10nF and 4.7nF respectively are
recommended however this is design dependent and any value between 1nF and 100nF could
be used.
The capacitors C NB and C SUB are an integral part of the ZNBGs negative supply generator. The
negative bias voltage is generated on-chip using an internal oscillator. The required value of
capacitors C NB and C SUB is 47nF. This generator produces a low current supply of approximately
-3 volts. Although this generator is intended purely to bias the external FETs, it can be used to
power other external circuits via the C SUB pin.
Resistor R CAL1 sets the drain current at which all external FETs are operated. If any bias control
circuit is not required, its related drain and gate connections may be left open circuit without
affecting the operation of the remaining bias circuits. If all FETs associated with a current setting
resistor are omitted, the particular R CAL should still be included. The supply current can be
reduced, if required, by using a high value R CAL resistor (e.g. 470k).
4-142
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZNBG3001 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:FET BIAS CONTROLLER |
| ZNBG3001Q16 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:FET BIAS CONTROLLER |
| ZNBG3001Q16TC | 制造商:Diodes Incorporated 功能描述:FET BIAS CONTROLLER,16-PIN QSOP PACKAGE, OPERATIONAL TEMPERATURE RANGE -30°C TO 70°C. |
| ZNBG3010 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:FET BIAS CONTROLLER AND POLARITY SWITCH |
| ZNBG3010Q16 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:FET BIAS CONTROLLER AND POLARITY SWITCH |
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