TA2145AFG datasheet(10/16 Pages) TOSHIBA

No de pièce	TA2145AFG

Description	3 V Stereo Headphone Amplifier (3 V USE)

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Fabricant	TOSHIBA [Toshiba Semiconductor]

Site Internet	http://www.semicon.toshiba.co.jp/eng

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10 / 16 page

TA2145AFG

2006-04-19

10

Characteristic Curves (Unless otherwise specified, VCC = 3 V, Ta = 25°C, f = 1 kHz,

Preamplifier:

Rg = 2.2 kΩ, RL = 10 kΩ

Power amplifier: Rg = 600 Ω, RL = 16 Ω, Vol. = max

Motor governor: Im = 100 mA)

Supply voltage

VCC (V)

ICCQ, ICC – VCC

Supply voltage

VCC (V)

VO (DC) – VCC

Frequency

f

(Hz)

PRE

GVO, GVC – f

Frequency

f

(Hz)

PRE

CT – f

Supply voltage

VCC (V)

PRE

Vom – VCC

Output voltage

Vo (mVrms)

PRE

THD – Vo

ICCQ1 (PRE + PW, Vol.: min)

0

1.5

2.0

2.5

3.5

4.0

3.0

12

0

4

16

8

ICCQ2 (PW only, Vol.: min)

ICC (GVN: Im = 0)

0

1.5

2.0

2.5

3.5

4.0

3.0

1.5

0

0.5

2.5

1.0

2.0

VREF, PW OUT, PRE OUT

10

100

1 k

100 k

10 k

60

0

20

100

40

80

Vo = −10dBV

GVO

GVC

10

100

1 k

100 k

10 k

60

80

70

40

50

Vo = −10dBV

0

1.5

2.0

2.5

3.5

4.0

3.0

500

100

1000

200

THD

= 1%

f = 10 kHz

f = 100 Hz

f = 1 kHz

1

10

100

10000

1000

1

0.01

0.03

10

3

0.1

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