TA2170FTG datasheet(9/12 Pages) TOSHIBA

部件名	TA2170FTG

功能描述	Low Current Consumption Headphone Amplifier (Built-in input selector)

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制造商	TOSHIBA [Toshiba Semiconductor]

网页	http://www.semicon.toshiba.co.jp/eng

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9 / 12 page

TA2170FTG

2006-04-19

9

Electrical Characteristics (Unless otherwise specified, VCC1 = VCC2 = 3 V, Rg = 600 Ω,

RL = 32 Ω, f = 1 kHz, Ta = 25°C, SW1~SW5: a, SW6~SW8: a)

Characteristic

Symbol

Test condition

Min.

Typ.

Max.

Unit

ICCQ1

IC OFF mode SW1~5: b

⎯

5

µA

ICCQ2

1 input on mode

BUF1: ON (SW5: a, SW3/4: b)

BUF2: ON (SW4: a, SW3/5: b)

BUF3: ON (SW3: a, SW4/5: b)

⎯

0.9

1.6

ICCQ3

2 input on mode

BUF1/2: ON (SW4/5: a, SW3: b)

BUF1/3: ON (SW3/5: a, SW4: b)

BUF2/3: ON (SW3/4: a, SW5: b)

⎯

1.0

1.8

ICCQ4

3 input on mode

⎯

1.1

2.0

Quiescent supply current

ICCQ5

1 input on mode

VCC1 = 2.4 V, VCC2 = 1.2 V

BUF1: ON (SW5: a, SW3/4: b)

BUF2: ON (SW4: a, SW3/5: b)

BUF3: ON (SW3: a, SW4/5: b)

⎯

0.9

1.6

mA

ICC1

1 input on mode 0.1 mW/32

Ω × 2 ch

BUF1: ON (SW5: a, SW3/4: b)

BUF2: ON (SW4: a, SW3/5: b)

BUF3: ON (SW3: a, SW4/5: b)

⎯

2.2

⎯

ICC2

2 input on mode 0.1 mW/32

Ω × 2 ch

BUF1/2: ON (SW4/5: a, SW3: b)

BUF1/3: ON (SW3/5: a, SW4: b)

BUF2/3: ON (SW3/4: a, SW5: b)

⎯

2.3

⎯

Power supply current during drive

ICC3

3 input on mode 0.1 mW/32

Ω × 2 ch

⎯

2.4

⎯

mA

GV1

1 input on mode Vo = −20dBV

BUF1: ON (SW5: a, SW3/4: b)

BUF2: ON (SW4: a, SW3/5: b)

BUF3: ON (SW3: a, SW4/5: b)

−1.8

−0.3

1.2

GV2

2 input on mode Vo = −20dBV

BUF1/2: ON (SW4/5: a, SW3: b)

BUF1/3: ON (SW3/5: a, SW4: b)

BUF2/3: ON (SW3/4: a, SW5: b)

−1.0

0.5

2.0

Voltage gain

GV3

3 input on mode Vo = −20dBV

−0.8

0.7

2.2

dB

Channel balance

CB

Vo = −20dBV

−1.5

0

1.5

dB

Po1

THD

= 10%

15

20

⎯

Output power

Po2

VCC1 = 2.4 V, VCC2 = 1.2 V

THD

= 10%

3

6

⎯

mW

Total harmonic distortion

THD

Po = 1 mW

⎯

0.1

0.3

%

Output noise voltage

Vno

Rg = 600 Ω, Filter: IHF-A, SW6~8: b

⎯

−100

−96

dBV

Cross talk

CT

Vo = −20dBV

−53

−60

⎯

dB

Ripple rejection ratio

RR

fr = 100 Hz, Vr = −20dBV

−70

−80

⎯

dB

ATT1

ALL MUTE SW: ON, Vo = −20dBV

−75

−90

⎯

Muting attenuation

ATT2

MUTE SW: ON, Vo = −20dBV

−47

−62

⎯

dB

PW SW ON current

I19

VCC1 = 1.8 V, VCC2 = 0.9 V

5

⎯

µA

PW SW OFF voltage

V19

VCC1 = 1.8 V, VCC2 = 0.9 V

0

⎯

0.3

V

MUTE SW OFF current

I20-24

VCC1 = 1.8 V, VCC2 = 0.9 V

5

⎯

µA

MUTE SW ON voltage

V20-24

VCC1 = 1.8 V, VCC2 = 0.9 V

0

⎯

0.1

V

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