LA4802 データシートの表示（PDF） - SANYO -> Panasonic

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LA4802

Headphone Stereo Power Amplifier

SANYO -> Panasonic 

LA4802T

Operating Conditions at Ta = 25°C

Parameter

Recommended supply voltage

Operating supply voltage range

Recommended load resistance

Symbol

VCC

VCC op

RL

Conditions

Ratings

Unit

2.4

V

1.8 to 3.6

V

16 to 32

Ω

Electrical Characteristics at Ta = 25°C, VCC = 2.4 V, fIN = 1 kHz, RL = 16 Ω

Item

Symbol

Conditions

Quiescent current

ICCO1 Current when ST is off (with L.B. on and muting off)

ICCO2 Current when muting is on (with ST on and L.B. on)

ICCO3 Current when ST is on (with L.B. on and muting off)

Operating current drain

ICC1 PO = 0.1 mW (With 2 channels driven)

Voltage gain

VG VO = –10 dBm

Channel balance

∆VG VO = –10 dBm

Output power

PO THD = 10%

Total harmonic distortion

THD VO = –8 dBm, 20 kHz LPF

Output noise voltage

VNO Rg = 10 kΩ, IHF A

Crosstalk

CT TUN1kHz, VO = –10 dBm

Ripple rejection ratio

SVRR fr = 100 kHz, Vr = –20 dBm, TUN100Hz

Peak output voltage

VOBEEP VIN = 2.4 Vp-p, f = 1 kHz, MUTE OFF

Muting attenuation

VOFF THD = 1%, TUN1kHz

Power on voltage sensitivity

V1 ON Power on threshold voltage

Power off voltage sensitivity

V1 OFF Power off threshold voltage

Mute on voltage sensitivity

V20 ON Muting on threshold voltage

Mute off voltage sensitivity

V20 OFF Muting off threshold voltage

Boost on voltage sensitivity

V4 ON Boost on threshold voltage

Boost off voltage sensitivity

V4 OFF Boost off threshold voltage

Ta = 25°C, VCC = 2.7 V, fIN = 1 kHz, RL = 47 kΩ (Characteristics when used as a line output), L.B OFF

Operating current drain

ICC2 VO = 0 dBm (With 2 channels driven)

Total harmonic distortion

THD2 VO = 0 dBm, 20 kHz LPF

Output noise voltage

VNO2 Rg = 10 kΩ, IHF A

Crosstalk

CT2 TUN1kHz, VO = –10 dBm

Ripple rejection ratio

SVRR2 fr = 100 kHz, Vr = –20 dBm, TUN100Hz

min

6.8

–1

25

70

60

1.0

–100

1.6

1.4

1.4

80

65

Ratings

typ

0.05

530

950

3.2

7.8

0

38

0.03

–100

80

70

2.7

–120

1.5

0.005

–100

90

78

max

1

900

1500

3.7

8.8

+1

0.1

–90

0.5

0.5

0.5

Unit

µA

µA

µA

mA

dB

dB

mW

%

dBm

dB

dB

mV

dB

V

V

V

V

V

V

2.0 mA

0.05

%

–90 dBm

dB

dB

Switch Threshold Voltages and Pin Influx Currents

• Standby switch (pin 1)

120

100

80 L

H : IC ON

L : IC OFF

H

60

40

20

0

0

1

2

3

4

5

V1 (V)

• Mute switch (pin 20), boost switch (pin 4)

H : MUTE ON, L. B OFF

L : MUTE OFF, L. B ON

40

30 L

H

20

0

0

1

2

3

4

5

V20, V4 (V)

No. 6657-2/10

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