NCS2302 datasheet(5/8 Pages) ONSEMI

Part #	NCS2302

Description	Headset Detection Interface Interface

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NCS2302

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Table 5. ELECTRICAL CHARACTERISTICS Typical values are referenced to TA = 25°C, VDD = 1.8 V, VDD2 = 2.1 V, unless

otherwise noted. Min/max values apply from TA = −40°C to 85°C, unless otherwise noted. (Notes 5, 6)

Parameter

Units

Max

Typ

Min

Symbol

Test Conditions

OUTPUT CHARACTERISTICS OF DET

Voltage Output Low

IOH = 0.1 mA

VOL

0.1

V

Voltage Output High

IOH = −0.1 mA

VOH

1.6

V

Rise Time

COUT = 15 pF, RL = 1 MW

trise

50

ns

Fall Time

COUT = 15 pF, RL = 1 MW

tfall

28

ns

INPUT CHARACTERISTICS OF S/E_REF AND S/E_DET

Propagation Delay to S/E

Cout = 15 pF, VCM = mid−supply, 100 mV

overdrive

tpLH, tpHL

50

ns

Input Leakage

VCM = 0.9 V

IIL

150

pA

Input Capacitance

S/E_DET, f = 1 MHz

CIN

3

pF

S/E_REF, f = 1 MHz

11

OUTPUT CHARACTERISTICS OF S/E

Voltage Output Low

IOH = 0.1 mA

VOL

0.1

V

Voltage Output High

IOH = −0.1 mA

VOH

1.9

V

Rise Time

COUT = 15 pF, RL = 1 MW

trise

30

ns

Fall Time

COUT = 15 pF, RL = 1 MW

tfall

18

ns

CHARACTERISTICS OF MIC

Drain−Source On Resistance of NMOS IMIC = 1 mA

RDS(ON)

0.45

1.2

W

5. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.

6. Performance guaranteed over the indicated operating temperature range by design and/or characterization.

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

TYPICAL CHARACTERISTICS

Figure 3. MIC On Resistance vs. Drain Current

at VDD = 1.6 V

Figure 4. MIC On Resistance vs. Drain Current

at VDD = 1.8 V

MIC DRAIN CURRENT (mA)

4.5

4.0

3.5

3.0

2.0

1.5

1.0

0.5

0.2

0.3

0.4

0.5

0.6

0.7

0.8

5.0

4.0

3.5

3.0

2.0

1.5

1.0

0.5

0.2

0.3

0.4

0.5

0.6

0.7

0.8

2.5

5.0

VDD = 1.6 V

T = −40

°C

T = 25

°C

T = 85

°C

VDD = 1.8 V

T = −40

°C

T = 25

°C

T = 85

°C

2.5

4.5

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