TDA7360 STMicroelectronics, TDA7360 Datasheet - Page 25

• Manufacturer Part Number: TDA7360
• Description: IC AMP AUDIO PWR 22W MULTIWATT11
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA7360

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 22W x 1 @ 3.2 Ohm; 12W x 2 @ 1.6 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Depop, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: Multiwatt-11 (Vertical, Bent and Staggered Leads)
• Operational Class: Class-AB
• Output Power (typ): 22W
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.05%%
• Single Supply Voltage (typ): 9/12/15V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 36W
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 62dB
• Single Supply Voltage (min): 8V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Mounting: Through Hole
• Pin Count: 11 +Tab
• Package Type: MULTIWATT V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3973-5

TDA7360
4.4
Global approach to solving pop problem by using the
muting/turn-on delay function
In the real case turn-on and turn-off pop problems are generated not only by the power
amplifier, but also (very often) by preamplifiers, tone controls, radios etc. and transmitted by
the power amplifier to the loudspeaker.
A simple approach to solving these problems is to use the mute characteristics of the
TDA7360. If the SVR pin is at a voltage below 1.5 V, the mute attenuation (typ) is 30dB.The
amplifier is in play mode when V
With the circuit of
a time Toff after switch-off. During this period the circuitry that precedes the power amplifier
can produce spurious spikes that are not transmitted to the loudspeaker.
This can give back a very simple design of this circuitry from the pop point of view. A timing
diagram of this circuit is illustrated in
●
●
Figure 42. ST-BY pin supply circuit, example 1
Figure 43. ST-BY pin supply circuit, example 2
A reduced time constant allowance of stand-by pin turn off. Consequently it is possible
to drive all the car-radio with the signal that drives this pin.
A better turn-off noise with signal on the output. To drive two stereo amplifiers with this
circuit it is possible to use the circuit of
Figure 44
we can mute the amplifier for a time Ton after switch-on and for
Doc ID 1499 Rev 3
svr
overcomes 3.5 V.
Figure
Figure
45. Other advantages of this circuit are:
46.
Application hints
25/30