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ZNBG3115 Datasheet(PDF) 4 Page - Zetex Semiconductors

Part No. ZNBG3115
Description  FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION
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Maker  ZETEX [Zetex Semiconductors]
Homepage  http://www.diodes.com/
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ZNBG3115 Datasheet(HTML) 4 Page - Zetex Semiconductors

 
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ZNBG3115
ZNBG3116
ISSUE 1 - JUNE 2001
4
SYMBOL
PARAMETER
CONDITIONS
LIMITS
UNITS
MIN.
TYP.
MAX.
TONE DETECTION CHARACTERISTICS
VOUT
Filter Amplifier
Bias Voltage
5
Ifin=0
1.75
1.95
2.15
V
Finz
Input Impedance
VFIN=100mV p/p
150
AG
Amplifier Gain
VFIN=100mV p/p
30
V/mA
FVT
V Threshold
5
100
170
350
mV p/p
VLOV
Output Stage
LOV Volt. Range
6
IL=50mA(LB or HB)
-0.5
VCC-1.8 V
ILOV
LOV Bias Current
VLOV=0
0.02
0.15
1.0
µA
VLBL
LB Output Low
VLOV=0
IL=0
Enabled
6
Rlb-Csub=1M
-3.05
-2.80
-2.55
V
VLOV=3V IL=0mA
Enabled
6
Rlb-Csub=1M
-0.01
0
0.1
V
VLBH
LB Output High
VLOV=0
IL=10mA
Disabled
6
VLOV=3V IL=50mA
Disabled
6
-0.025
2.9
0
3.0
0.025
3.1
V
V
VHBL
HB Output Low
VLOV=0
IL=0
Disabled
6
Rhb-Csub=1M
-3.05
-2.80
-2.55
V
VLOV=3V IL=0
Disabled
6
Rhb-Gnd=1M
-0.01
0
0.1
V
V
VHBH
HB Output High
VLOV=0
IL=10mA
Enabled
6
VLOV=3V IL=50mA
Enabled
6
-0.025
2.9
0
3.0
0.025
3.1
V
V
POLARITY SWITCH CHARACTERISTICS
IPOL
Input Current
VPOL=25V (Applied via RPOL=2k
Ω)
10
25
40
µA
VTPOL
Threshold Voltage
VPOL=25V (Applied via RPOL=2k
Ω)
14
14.75
15.5
V
TSPOL
Switching Speed
VPOL=25V (Applied via RPOL=2k
Ω)
100
ms
NOTES:
1. The negative bias voltages specified are generated on-chip using an internal oscillator. Two external capacitors, CNB and CSUB, of 47nF are required for this
purpose.
2. The characteristics are measured using an external reference resistor RCAL of value 33k wired from pins RCAL to ground.
3. Noise voltage is not measured in production.
4. Noise voltage measurement is made with FETs and gate and drain capacitors in place on all outputs. CG, 4.7nF, are connected between gate outputs and
ground, CD, 10nF, are connected between drain outputs and ground.
5 . These parameters are linearly related to VCC
6. These parameters are measured using Test Circuit 1


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