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ZNBG3210 Datasheet(PDF) 4 Page - Zetex Semiconductors

Part No. ZNBG3210
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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ZNBG3210 Datasheet(HTML) 4 Page - Zetex Semiconductors

 
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SYMBOL PARAMETER
CONDITIONS
LIMITS
UNITS
MIN.
TYP.
MAX.
TONE DETECTION CHARACTERISTICS
IB
Filter Amplifier
Input Bias Current RF1=150kΩ
0.02
0.07
0.25
µA
VOUT
Output Voltage
5 R
F1=150kΩ
1.75
1.95
2.05
V
IOUT
Output Current
5 V
OUT=1.96V, VFIN=2.1V
400
520
650
µA
GV
Voltage Gain
f=22kHz,VIN=1mV
46
dB
fR
8
Rejection
Frequency
V(AC)in=1V p/p sq.w
6
1.0
7.5
kHz
VLOV
Output Stage
LOV Volt. Range
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=-10
µA
Enabled
6
VLOV=3V IL=0
Enabled
7
-3.5
-0.01
-2.75
0
-2.5
0.01
V
V
VLBH
LB Output High
VLOV=0
IL=10mA
Disabled
6
VLOV=3V IL=50mA
Disabled
7
-0.025
2.9
0
3.0
0.025
3.1
V
V
VHBL
HB Output Low
VLOV=0
IL=-10
µA
Disabled
6
VLOV=3V IL=0
Disabled
7
-3.5
-0.01
-2.75
0
-2.5
0.01
V
V
VHBH
HB Output High
VLOV=0
IL=10mA
Enabled
6
VLOV=3V IL=50mA
Enabled
7
-0.025
2.9
0
3.0
0.025
3.1
V
V
POLARITY SWITCH CHARACTERISTICS
IPOL
Input Current
VPOL=25V (Applied via RPOL=10kΩ) 10
20
40
µA
VTPOL
Threshold
Voltage
VPOL=25V (Applied via RPOL=10kΩ)
14
14.75
15.5
V
TSPOL
Switching Speed VPOL=25V (Applied via RPOL=10kΩ)
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
7. These parameters are measured using Test Circuit 2
8. The ZNBG32 series will also reject DiSEqC
 and other common switching bursts.
ZNBG3210
ZNBG3211
67-4


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