TEXAS INSTRUMENTS TPA6011A4 Technical data

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APPLICATION CIRCUIT

PGND

ROUT-

PV

DD

RHPIN

RLINEIN

RIN

V

DD

LIN

LLINEIN

LHPIN

PV

DD

LOUT-

1

ROUT+

SE/BTL

HP/LINE

VOLUME

SEDIFF

SEMAX

AGND

BYPASS

FADE

SHUTDOWN

LOUT+

PGND

2

3

4

5

6

7

8

9

10

11
12

13

14

15

16

17

18

19

20

21

22

23

24

C

S

C

i

V

DD

Right HP

Audio Source

C

i

C

i

C

S

C

i

C

i

C

i

C

S

Power Supply

Right Line

Audio Source

Left Line

Audio Source

Left HP

Audio Source

Power Supply

V

DD

100 kΩ

100 kΩ

C

C

In From DAC

or

Potentiometer

(DC Voltage)

C

(BYP)

System
Control

C

C

Right
Speaker

Left
Speaker

Headphone
s

1 kΩ

1 kΩ

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

20

30

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Volume [Pin 21] - V

DC VOLUME CONTROL

SE Volume,
SEDIFF [Pin 20] = 0 V

SE Volume,
SEDIFF [Pin 20] = 1 V

Volume - dB

BTL Volume

BTL Volume (dB) ∝ Volume (V)
SE Volume (dB) ∝ Volume (V) - SEDIFF
(V)

3-W STEREO AUDIO POWER AMPLIFIER

WITH ADVANCED DC VOLUME CONTROL

FEATURES DESCRIPTION

• Advanced DC Volume Control With 2-dB

Steps
From -40 dB to 20 dB

– Fade Mode
– Maximum Volume Setting for SE Mode
– Adjustable SE Volume Control

Referenced to BTL Volume Control

• 3 W Into 3- Ω Speakers

• Stereo Input MUX

• Differential Inputs

APPLICATIONS

• Notebook PC

• LCD Monitors

• Pocket PC

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

The TPA6011A4 is a stereo audio power amplifier
that drives 3 W/channel of continuous RMS power
into a 3- Ω load. Advanced dc volume control
minimizes external components and allows BTL
(speaker) volume control and SE (headphone) vol­ume control. Notebook and pocket PCs benefit from
the integrated feature set that minimizes external
components without sacrificing functionality.

To simplify design, the speaker volume level is
adjusted by applying a dc voltage to the VOLUME
terminal. Likewise, the delta between speaker volume
and headphone volume can be adjusted by applying
a dc voltage to the SEDIFF terminal. To avoid an
unexpected high volume level through the
headphones, a third terminal, SEMAX, limits the
headphone volume level when a dc voltage is ap­plied. Finally, to ensure a smooth transition between
active and shutdown modes, a fade mode ramps the
volume up and down.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright © 2002–2004, Texas Instruments Incorporated

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TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

AVAILABLE OPTIONS

T

A

40 ° C to 85 ° C TPA6011A4PWP

(1) The PWP package is available taped and reeled. To order a taped

and reeled part, add the suffix R to the part number
(e.g., TPA6011A4PWPR).

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range (unless otherwise noted)

V

SS

V

I

T

A

T

J

T

stg

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

Supply voltage, VDD, PV

DD

Input voltage -0.3 V to VDD+0.3 V
Continuous total power dissipation See Dissipation Rating Table
Operating free-air temperature range -40 ° C to 85 ° C
Operating junction temperature range -40 ° C to 150 ° C
Storage temperature range -65 ° C to 150 ° C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 ° C

PACKAGE

24-PIN TSSOP (PWP)

(1)

(1)

UNIT

-0.3 V to 6 V

PACKAGE

RECOMMENDED OPERATING CONDITIIONS

V

SS

V

IH

V

IL

T

A

Supply voltage, VDD, PV

High-level input voltage

Low-level input voltage

Operating free-air temperature -40 85 ° C

DISSIPATION RATING TABLE

TA≤ 25 ° C DERATING FACTOR TA= 70 ° C TA= 85 ° C

POWER RATING ABOVE TA= 25 ° C POWER RATING POWER RATING

PWP 2.7 mW 21.8 mW/ ° C 1.7 W 1.4 W

DD

SE/ BTL, HP/ LINE, FADE 0.8 × V
SHUTDOWN 2 V
SE/ BTL, HP/ LINE, FADE 0.6 × V
SHUTDOWN 0.8 V

MIN MAX UNIT

4.0 5.5 V

DD

DD

V

V

2

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TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

ELECTRICAL CHARACTERISTICS

TA= 25 ° C, V

| V

| Output offset voltage (measured differentially)

OO

PSRR Power supply rejection ratio V
| IIH| 1 µA

| IIL| V

I

DD

I

DD

I

DD(SD)

OPERATING CHARACTERISTICS

TA= 25 ° C, V

P

O

THD+N Total harmonic distortion + noise PO= 1 W, RL= 8 Ω , f = 20 Hz to 20 kHz <0.4%
V

OH

V

OL

V

(Bypass

)

B

OM

Z

I

= PV

DD

= 5.5 V (unless otherwise noted)

DD

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

V

= 5.5 V, Gain = 0 dB, SE/ BTL = 0 V 30 mV

DD

V

= 5.5 V, Gain = 20 dB, SE/ BTL = 0 V 50 mV

DD

= PV

DD

High-level input current (SE/ BTL, FADE, HP/ LINE, V
SHUTDOWN, SEDIFF, SEMAX, VOLUME) VI= V

Low-level input current (SE/ BTL, FADE, HP/ LINE,
SHUTDOWN, SEDIFF, SEMAX, VOLUME)

Supply current, no load mA

Supply current, max power into a 3- Ω load SHUTDOWN = 2 V, RL= 3 Ω , 1.5 A

DD

DD

V

DD

SHUTDOWN = 2 V
V

DD

SHUTDOWN = 2 V
V

DD

= 4.0 V to 5.5 V -42 -70 dB

DD

= PV

= 5.5 V,

DD

= PV

DD

DD

= PV

= 5.5 V, VI= 0 V 1 µA

DD

= PV

= 5.5 V, SE/ BTL = 0 V,

DD

= PV

= 5.5 V, SE/ BTL = 5.5 V,

DD

= 5 V = PV

, SE/ BTL = 0 V,

DD

6.0 7.5 9.0

3.0 5 6

PO= 2 W, stereo

Supply current, shutdown mode SHUTDOWN = 0.0 V 1 20 µA

= PV

DD

= 5 V, RL= 3 Ω , Gain = 6 dB (unless otherwise noted)

DD

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Output power W

High-level output voltage RL= 8 Ω , Measured between output and V

THD = 1%, f = 1 kHz 2
THD = 10%, f = 1 kHz, V

= 5.5 V 3

DD

DD

700 mV
Low-level output voltage RL= 8 Ω , Measured between output and GND 400 mV
Bypass voltage (Nominally VDD/2) Measured at pin 17, No load, V

= 5.5 V 2.65 2.75 2.85 V

DD

Maximum output power bandwidth THD = 5% >20 kHz

Supply ripple rejection ratio f = 1 kHz, Gain = 0 dB, C

Noise output voltage BTL 36 µV

f = 20 Hz to20 kHz, Gain = 0 dB,
C

= 0.47 µF

(BYP)

= 0.47 µF

(BYP)

BTL -63 dB
SE -57 dB

Input impedance (see Figure 26 ) VOLUME = 5.0 V 14 k Ω

RMS

RMS

3

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1
2
3
4
5
6
7
8
9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

PGND

ROUT-

PV

DD

RHPIN

RLINEIN

RIN

V

DD

LIN

LLINEIN

LHPIN

PV

DD

LOUT-

ROUT+
SE/BTL
HP/LINE
VOLUME
SEDIFF
SEMAX
AGND
BYPASS
FADE
SHUTDOWN
LOUT+
PGND

PWP PACKAGE

(TOP VIEW)

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

Terminal Functions

TERMINAL

NAME NO.

PGND 1, 13 - Power ground
LOUT- 12 O Left channel negative audio output
PV

DD

LHPIN 10 I Left channel headphone input, selected when HP/ LINE is held high
LLINEIN 9 I Left channel line input, selected when HP/ LINE is held low
LIN 8 I Common left channel input for fully differential input. AC ground for single-ended inputs.
V

DD

RIN 6 I Common right channel input for fully differential input. AC ground for single-ended inputs.
RLINEIN 5 I Right channel line input, selected when HP/ LINE is held low
RHPIN 4 I Right channel headphone input, selected when HP/ LINE is held high
ROUT- 2 O Right channel negative audio output
ROUT+ 24 O Right channel positive audio output
SHUTDOWN 15 I Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal

FADE 16 I
BYPASS 17 I Tap to voltage divider for internal midsupply bias generator used for analog reference

AGND 18 - Analog power supply ground
SEMAX 19 I Sets the maximum volume for single ended operation. DC voltage range is 0 to VDD.
SEDIFF 20 I Sets the difference between BTL volume and SE volume. DC voltage range is 0 to VDD.
VOLUME 21 I Terminal for dc volume control. DC voltage range is 0 to VDD.

HP/ LINE 22 I

SE/ BTL 23 I
LOUT+ 14 O Left channel positive audio output.

I/O DESCRIPTION

3, 11 - Supply voltage terminal for power stage

7 - Supply voltage terminal

Places the amplifier in fade mode if a logic low is placed on this terminal; normal operation if a logic high is
placed on this terminal

Input MUX control. When logic high, RHPIN and LHPIN inputs are selected. When logic low, RLINEIN and
LLINEIN inputs are selected.

Output MUX control. When this terminal is high, SE outputs are selected. When this terminal is low, BTL
outputs are selected.

4

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FUNCTIONAL BLOCK DIAGRAM

Power

Management

32-Step
Volume
Control

MUX

Control

R

MUX

RHPIN

ROUT+

SHUTDOWN

ROUT-

PV

DD

PGND
V

DD

BYPASS

AGND

LOUT+

LOUT-

RLINEIN

RIN

HP/LINE

VOLUME

SEDIFF
SEMAX

FADE

_
+

HP/LINE

_

+

_
+

BYP

_
+

BYP

BYP

EN

SE/BTL

L

MUX

_
+

HP/LINE

_

+

_
+

BYP

_
+

BYP

BYP

EN

SE/BTL

SE/BTL

LHPIN

LLINEIN

LIN

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

NOTE: All resistor wipers are adjusted with 32 step volume control.

5

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TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

Table 1. DC Volume Control (BTL Mode, V

FROM (V) TO (V)

0.00 0.26 -85

0.33 0.37 -40

0.44 0.48 -38

0.56 0.59 -36

0.67 0.70 -34

0.78 0.82 -32

0.89 0.93 -30

1.01 1.04 -28

1.12 1.16 -26

1.23 1.27 -24

1.35 1.38 -22

1.46 1.49 -20

1.57 1.60 -18

1.68 1.72 -16

1.79 1.83 -14

1.91 1.94 -12

2.02 2.06 -10

2.13 2.17 -8

2.25 2.28 -6

2.36 2.39 -4

2.47 2.50 -2

2.58 2.61 0

2.70 2.73 2

2.81 2.83 4

2.92 2.95 6

3.04 3.06 8

3.15 3.17 10

3.26 3.29 12

3.38 3.40 14

3.49 3.51 16

3.60 3.63 18

3.71 5.00 20

(1) For other values of VDD, scale the voltage values in the table by a factor of VDD/5.
(2) Tested in production. Remaining gain steps are specified by design.

VOLUME (PIN 21)

(1)

= 5 V)

DD

GAIN OF AMPLIFIER

(Typ)

(2)

(2)

(2)

6

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Table 2. DC Volume Control (SE Mode, V

DD

SE_VOLUME = VOLUME - SEDIFF or SEMAX

FROM (V) TO (V)

0.00 0.26 -85

0.33 0.37 -46

0.44 0.48 -44

0.56 0.59 -42

0.67 0.70 -40

0.78 0.82 -38

0.89 0.93 -36

1.01 1.04 -34

1.12 1.16 -32

1.23 1.27 -30

1.35 1.38 -28

1.46 1.49 -26

1.57 1.60 -24

1.68 1.72 -22

1.79 1.83 -20

1.91 1.94 -18

2.02 2.06 -16

2.13 2.17 -14

2.25 2.28 -12

2.36 2.39 -10

2.47 2.50 -8

2.58 2.61 -6

2.70 2.73 -4

2.81 2.83 -2

2.92 2.95 0

3.04 3.06 2

3.15 3.17 4

3.26 3.29 6

3.38 3.40 8

3.49 3.51 10

3.60 3.63 12

3.71 5.00 14

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

(1)

= 5 V)

GAIN OF AMPLIFIER

(Typ)

(2)

(2)

(2)

(2)

(1) For other values of VDD, scale the voltage values in the table by a factor of VDD/5.
(2) Tested in production. Remaining gain steps are specified by design.

7

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10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

20 20 k100 1 k 10 k

VDD = 5 V
RL = 3 Ω
Gain = 20 dB
BTL

PO = 1.75 W

PO = 0.5 W

PO = 1 W

THD+N − Total Harmonic Distortion + Noise (BTL) − %

f − Frequency − Hz

10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

20 20 k50 100 200 500 1 k 2 k 5 k 10 k

PO = 0.25 W

PO = 1.5 W

PO = 1 W

f − Frequency − Hz

THD+N − Total Harmonic Distortion + Noise (BTL) − %

VDD = 5 V
RL = 4 Ω
Gain = 20 dB
BTL

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

TYPICAL CHARACTERISTICS

Table of Graphs

THD+N Total harmonic distortion plus noise (BTL)

THD+N Total harmonic distortion plus noise (SE) vs Output power 9

Closed loop response 11, 12

I

CC

P
P

Supply current

Power Dissipation vs Output power 17, 18

D

Output power vs Load resistance 19, 20

O

Crosstalk vs Frequency 21, 22
HP/ LINE attenuation vs Frequency 23

PSRR Power supply ripple rejection (BTL) vs Frequency 24
PSRR Power supply ripple rejection (SE) vs Frequency 25
Z
V

Input impedance vs BTL gain 26

I

Output noise voltage vs Frequency 27

n

vs Frequency 1, 2 3
vs Output power 6, 7, 8
vs Frequency 4, 5

vs Output voltage 10

vs Temperature 13
vs Supply voltage 14, 15, 16

FIGURE

TOTAL HARMONIC DISTORTION + NOISE (BTL) TOTAL HARMONIC DISTORTION + NOISE (BTL)

8

vs vs

FREQUENCY FREQUENCY

Figure 1. Figure 2.

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10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

20

20 k50 100 200 500 1 k 2 k 5 k 10 k

f − Frequency − Hz

THD+N − Total Harmonic Distortion + Noise (SE) − %

PO = 75 mW

VDD = 5 V
RL = 32 Ω
Gain = 14 dB
SE

0.01

10

0.02

0.05

0.1

0.2

0.5

1

2

5

20 20 k50 100 200 500 1 k 2 k 5 k 10 k

PO = 1 W

VDD = 5 V
RL = 8 Ω
Gain = 20 dB
BTL

f − Frequency − Hz

THD+N − Total Harmonic Distortion + Noise (BTL) − %

PO = 0.25 W

PO = 0.5 W

10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

20 20 k50 100 200 500 1 k 2 k 5 k 10 k

f − Frequency − Hz

THD+N − Total Harmonic Distortion + Noise (SE) − %

VO = 1 V

RMS

VDD = 5 V
RL = 10 kΩ
Gain = 14 dB
SE

PO − Output Power − W

THD+N − Total Harmonic Distortion + Noise (BTL) − %

0.01

10

0.02

0.05

0.1

0.2

0.5

1

2

5

0.01 100.1 1

f = 20 kHz

f = 1 kHz

f = 20 Hz

VDD = 5 V
RL = 3 Ω
Gain = 20 dB
BTL

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

TOTAL HARMONIC DISTORTION + NOISE (BTL) TOTAL HARMONIC DISTORTION + NOISE (SE)

vs vs

FREQUENCY FREQUENCY

Figure 3. Figure 4.

TOTAL HARMONIC DISTORTION + NOISE (SE) TOTAL HARMONIC DISTORTION + NOISE (BTL)

vs vs

FREQUENCY OUTPUT POWER

Figure 5. Figure 6.

9

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10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

50.02 0.05 0.1 0.2 0.5 1 2

PO − Output Power − W

THD+N − Total Harmonic Distortion + Noise (BTL) − %

1 kHz

20 kHz

VDD = 5 V
RL = 8 Ω
Gain = 20 dB
BTL

20 Hz

10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

50.02 0.05 0.1 0.2 0.5 1 2

PO − Output Power − W

THD+N − Total Harmonic Distortion + Noise (BTL) − %

1 kHz

20 kHz

20 Hz

VDD = 5 V
RL = 4 Ω
Gain = 20 dB
BTL

10

0.001

0.002

0.005

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

0 500 m 1 1.5 2

VO − Output Voltage − rms

THD+N − Total Harmonic Distortion + Noise (SE) − %

1 kHz

20 kHz

20 Hz

VDD = 5 V
RL = 10 kΩ
Gain = 14 dB
SE

10

0.01

0.02

0.05

0.1

0.2

0.5

1

2

5

10 m 200 m50 m 100 m

PO − Output Power − W

THD+N − Total Harmonic Distortion + Noise (SE) − %

1 kHz

20 kHz

20 Hz

VDD = 5 V
RL = 32 Ω
Gain = 14 dB
SE

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

TOTAL HARMONIC DISTORTION + NOISE (BTL) TOTAL HARMONIC DISTORTION + NOISE (BTL)

vs vs

OUTPUT POWER OUTPUT POWER

Figure 7. Figure 8.

TOTAL HARMONIC DISTORTION + NOISE (SE) TOTAL HARMONIC DISTORTION + NOISE (SE)

vs vs

OUTPUT POWER OUTPUT VOLTAGE

10

Figure 9. Figure 10.

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150
120
90
60
30
0

−30

−80

−70

−60

−50

−40

−30

−20

−10

0

10

20

30

40

10 100 1 k 10 k 100 k 1 M

−180

−150

−120

−90

−60

180

Gain

Phase

VDD = 5 Vdc
RL = 8 Ω
Mode = BTL
Gain = 0 dB

f − Frequency − Hz

Closed Loop Gain − dB

Phase − Degrees

150
120
90
60
30
0

−30

−80

−70

−60

−50

−40

−30

−20

−10

0

10

20

30

40

10 100 1 k 10 k 100 k 1 M

−180

−150

−120

−90

−60

180

Gain

Phase

VDD = 5 Vdc
RL = 8 Ω
Mode = BTL
Gain = 20 dB

f − Frequency − Hz

Closed Loop Gain − dB

Phase − Degrees

0

1

2

3

4

5

6

7

8

9

10

−40 −25 5 20 35 50 65 95−10 110 125

− Supply Current − mA

TA − Free-Air Temperature − °C

I

DD

VDD = 5 V
Mode = BTL
SHUTDOWN = V

DD

80

−1

0

1

2

3

4

5

6

7

8

9

10

0

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

Mode = BTL
SHUTDOWN = V

DD

VDD − Supply Voltage − V

T

A

= 125°C

T

A

= 25°C

T

A

= −40°C

− Supply Current − mA
I

DD

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

CLOSED LOOP RESPONSE CLOSED LOOP RESPONSE

Figure 11. Figure 12.

TPA6011A4

SUPPLY CURRENT SUPPLY CURRENT

FREE-AIR TEMPERATURE SUPPLY VOLTAGE

Figure 13. Figure 14.

vs vs

11

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0

50

100

150

200

250

300

350

400

450

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Mode = SD
SHUTDOWN = 0 V

VDD − Supply Voltage − V

− Supply Current −
I

DD

T

A

= 125°C

T

A

= 25°C

T

A

= −40°C

nA

1

2

3

4

5

6

7

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

Mode = SE
SHUTDOWN = V

DD

VDD − Supply Voltage − V

− Supply Current − mAI
DD

T

A

= 125°C

T

A

= 25°C

T

A

=−40°C

0

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

PO − Output Power − W

− Power Dissipation (PER CHANNEL) − WP

D

VDD = 5 V
BTL

4 Ω

8 Ω

3 Ω

0

20

40

60

80

100

120

140

160

180

200

0 100 150 200 250 30050

8 Ω

16 Ω

32 Ω

PO − Output Power − mW

VDD = 5 V
SE

− Power Dissipation (PER CHANNEL) − mWP

D

TPA6011A4

SLOS392A – FEBRUARY 2002 – REVISED JULY 2004

SUPPLY CURRENT SUPPLY CURRENT

vs vs

SUPPLY VOLTAGE SUPPLY VOLTAGE

Figure 15. Figure 16.

POWER DISSIPATION (PER CHANNEL) POWER DISSIPATION (PER CHANNEL)

vs vs

OUTPUT POWER OUTPUT POWER

12

Figure 17. Figure 18.