3

Electrical specifications

3.1

Absolute maximum ratings

Table 2. Absolute maximum ratings

Symbol

Parameter

Value

Unit

VCC

DC supply voltage for pins PVCCA, PVCCB, SVCC

45

V

VI

Voltage limits for input pins STBY, MUTE, INNA, INPA, INNB, INPB,

GAIN0, GAIN1

-0.3 to 3.6

V

Tj

Operating junction temperature

-40 to 150

°C

Tstg

Storage temperature

-40 to 150

°C

3.2

Thermal data

Table 3. Thermal data

Symbol

Parameter

Min.

Typ.

Max.

Unit

Rth j-case

Thermal resistance, junction to case

-

2

3

°C/W

3.3

Recommended operating conditions

Table 4. Recommended operating conditions

Symbol

Parameter

Min.

Typ.

Max.

Unit

VCC

Supply voltage for pins PVCCA, PVCCB, SVCC

14

-

39

V

Tamb

Ambient operating temperature

-40

-

85

°C

3.4

Electrical specifications

Unless otherwise stated, the values in the table below are specified for the conditions: VCC = 36 V, RL = 6 Ω,

ROSC = R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, GV = 25.6 dB Tamb = 25 °C.

Table 5. Electrical specifications

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Iq

Total quiescent current

No LC filter, no load

-

40

60

mA

IqSTBY

Quiescent current in standby

-

-

1

10

µA

VOS

Output offset voltage

Play mode

-100

-

100

mV

Mute mode

-60

-

60

IOCP

Overcurrent protection threshold

RL = 0 Ω

6

7

-

A

Tj

Junction temperature at thermal

shutdown

-

-

150

-

°C

Ri

Input resistance

Differential input

48

60

-

kΩ

VOVP

Overvoltage protection threshold

-

42

43

-

V

TDA7498

Electrical specifications

DS6437 - Rev 10

page 5/22