LA4725

No.5715-2/8

Operating Conditions at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Recommended supply voltage

VCC

13.2

V

Allowable operating supply voltage

VCC op

9 to 16

V

Recommended load resistance

RL

4

Ω

Note : With VCC, RL, and the output level in ranges such that the Pd max for the heat sink used is not exceeded.

Electrical Characteristics at Ta = 25°C, VCC = 13.2V, RL = 4Ω, f = 1kHz, Rg = 600Ω

Ratings

Parameter

Symbol

Conditions

min

typ

max

Unit

Quiescent current

ICCO

Rg = 0

70

125

250

mA

Standby mode current drain

Ist

Standby mode (amplifier off), with no power

supply capacitor.

10

60

µA

Voltage gain

VG

VO = 0dBm

38

40

42

dB

Total harmonic distortion

THD

PO = 2W

0.06

0.2

%

PO1

THD = 10%

13

17

W

PO2

THD = 10%, VCC = 14.4V

20

W

Output power

PO3

THD = 30%, VCC = 14.4V

30

W

Output offset voltage

VN offset

Rg = 0

-300

+300

mV

Output noise voltage

VNO

Rg = 0, BPF = 20Hz to 20kHz

0.1

0.5

mV

Ripple rejection ratio

SVRR

Rg = 0, VR = 0dBm, fR = 100Hz

40

50

dB

Channel separation

CHsep

Rg = 10k

Ω, VO = 0dBm

50

60

dB

Input resistance

Ri

21

30

39

k

Ω

Standby pin applied voltage

VST

Amplifier on

(applied through an external 10k

Ω resistor)

2.5

VCC

V

Package Dimensions

unit : mm (typ)

3113B

SANYO : SIP14HZ

14

1

26.8

(20.0)

0.8

1.6

2.2

4.0

(R1.7)

0.5

0.4

(1.83)

1.78

HEAT SPREADER

0

Pd max -- Ta

-40

35

25

30

15

20

10

5

20

0

40

60

80

100

120

140

160

θf = 3°C/W

θf = 4°C/W

θf = 7°C/W

θjc = 2°C/W

Νο Fin

θf = 10°C/W

32.5

20.83

13.9

10.4

3.1

Infinite heat sink

Ambient temperature, Ta --

°C

AI heat sink Mounting

torque 39N

•cm

Flat washer Silicone

grease applied

-20