ZNBG3113 Datasheet, PDF(4/17 Page) Zetex Semiconductors – FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION

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ZNBG3113 Datasheet, PDF (4/17 Pages) Zetex Semiconductors – FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION

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ZNBG3113

ZNBG3114

SYMBOL PARAMETER

CONDITIONS

LIMITS

UNITS

TONE DETECTION CHARACTERISTICS

MIN. TYP. MAX.

VOUT

IOUT

VOUT

ILEAK

VTH

Filter Amplifier

Input Bias Current

Output Voltage 5

Output Current 5

RF1=150kâ¦

VOUT=1.96V, VFIN=2.1V

Voltage Gain

f=22kHz,VIN=1mV

Rectifier

Output Voltage 5 RF1=150kâ¦ IL=-10ÂµA

Leakage Current 5 RF1=150kâ¦ VOUT=3V

Comparator

Threshold

Voltage 5

f=0

0.04 0.15 1.0 ÂµA

1.75 1.95 2.05 V

400 520 650 ÂµA

1.8 2.0 2.2 V

20 200 nA

2.95 3.2 3.45 V

VLOV

Output Stage

LOV Volt. Range

IL=50mA(LB or HB)

ILOV

LOV Bias Current VLOV=0

VLBL

LB Output Low

VLOV=0 IL=-10ÂµA

VLOV=3V IL=0

VLBH

LB Output High

VLOV=0 IL=10mA

VLOV=3V IL=50mA

VHBL

HB Output Low

VLOV=0 IL=-10ÂµA

VLOV=3V IL=0

VHBH

HB Output High

VLOV=0 IL=10mA

VLOV=3V IL=50mA

POLARITY SWITCH CHARACTERISTICS

Enabled 6

Enabled 7

Disabled 6

Disabled 7

Enabled 6

Enabled 7

Disabled 6

Disabled 7

-0.5

VCC-1.8 V

0.04 0.15 1.0 ÂµA

-3.5 -2.75 -2.5 V

-0.01 0

0.01 V

-0.025 0

2.9 3.0

0.025 V

3.1 V

-3.5 -2.75 -2.5 V

-0.01 0

0.01 V

-0.025 0

2.9 3.0

0.025 V

3.1 V

IPOL

Input Current

VPOL=25V (Applied via RPOL=10kâ¦) 10

ÂµA

VTPOL Threshold

Voltage

VPOL=25V (Applied via RPOL=10kâ¦)

14.75 15.5 V

TSPOL Switching Speed VPOL=25V (Applied via RPOL=10kâ¦)

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 lneearly related to VCC

6. These parameters are measured using Test Circuit 1

7. These parameters are measured using Test Circuit 2

4-126

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