ANPEC APA4863RI-TY, APA4863RI-TU, APA4863OI-TU, APA4863OI-TR, APA4863KI-TR, APA4863KI-TU Datasheet

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APA4863

Stereo 2.2W Audio Power Amplifier

Features

Depop Circuitry Integrated

Thermal Shutdown Circuitry Integrated

Bridge-Tied Load (BTL) or Single-Ended (SE) Modes Operation

Output Power at 1% THD+N, VDD=5V

- 2.2W/Ch (typ) into a 3 Ω Load - 1.8W/Ch (typ) into a 4 Ω Load - 1.2 W/Ch (typ) into a 8 Ω Load

Shutdown Control Mode, ISD= 0.5 µA

Output Power (SE) at 0.5% THD+N, VDD=5V

- 90mW/Ch (typ.) into a 32Ω Load

Various Power Packages Available SOP, TSSOP, TSSOP-P

Applications

Stereo Audio Power Amplifier for Notebook Computer

Portable Televisions

Portable and Desktop Computers

General Description

The APA4863 is a stereo bridge-tied audio power amplifier in various power packages , including SOP , TSSOP and TSSOP-P . When connecting to a 5V voltage supply , the APA4863 is capable of delivering 2.2W/1.8W/1.2W of continuous RMS power per channel into 3Ω/ 4Ω/ 8Ω bridge-tied loads with less than 1% THD+N respectively . When APA4863 operates in the single-ended load , it is capable of delivering 90mW of continuous RMS power per channel into 32Ω load . The APA4863 simplifies design and frees up board space for other features .

The APA4863 also served well in low-voltage applications , which provides 750mW (1% THD+N) per channel into 4Ω loads with a 3.3V supply voltage . Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in the APA4863 , that reduces pops and clicks noise during power up and when using the shutdown mode and protects the chip from being destroyed by over-temperature failure . To simplify the audio system design in notebook computer applications , the APA4863 combines a stereo bridge-tied loads mode for speaker drive and a stereo single-end mode for headphone drive into a single chip , where both modes are easily switched by the HP-IN input control pin signal . For power sensitive applications , the APA4863 also features a shutdown function which keeps the supply current only 0.5 µA (typ.) .

Ordering Information

APA4863

Package Code

 

 

 

 

 

 

 

 

 

 

 

 

 

K: SOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Handling Code

O: TSSOP

 

R: TSSOP-P*

 

 

 

 

 

 

 

 

 

 

Temp. Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp. Range

I : -40 to 85

° C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Package Code

Handling Code

 

 

 

 

 

 

 

 

 

 

 

 

TU : Tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR : Tape & Reel

TY: Tray

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* TSSOP-P is a standard TSSOP package with a thermal pad exposed on the bottom of the package.

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright ANPEC Electronics Corp.

1

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

APA4863

Block Diagram

 

 

 

 

 

VDD

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

 

 

 

 

 

 

Audio

 

RF

 

0.1µ F

4, 13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

R1

20KΩ

6

- IN A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO

 

 

 

 

 

-

 

 

- OUT A

5

 

 

 

20KΩ

 

8

+ IN A*

 

 

+

 

 

 

 

 

 

 

 

 

 

 

C1

 

 

 

+

 

 

20KΩ

 

100µ F

 

 

 

1 µ F

 

 

 

20KΩ

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20KΩ

 

1KΩ

Pin

Ring

 

 

 

 

 

 

 

 

 

RL

 

 

 

 

Bypass

50ΚΩ

 

 

+ OUT A

 

8Ω

 

 

 

 

 

10

 

 

 

 

To HP-IN Circuit

 

 

 

 

CB

 

VDD / 2

 

-

3

 

 

 

 

 

 

 

 

 

 

 

 

2.2µ F

 

 

50KΩ

 

+

 

 

 

 

Tip Sleeve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Audio

 

 

 

 

 

 

 

 

 

 

 

Input

R1

 

 

- IN B

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

CO

Headphone Jack

 

 

 

-

 

 

 

 

 

 

 

 

 

 

- OUT B

12

 

20KΩ

 

9

+ IN B*

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

C1

R

 

 

+

 

 

 

 

 

 

 

 

1 µ F

F

 

 

20KΩ

 

20KΩ

 

100µ F

 

 

 

20KΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20KΩ

 

1KΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

RL

 

 

 

 

 

 

 

 

 

 

 

8Ω

 

 

 

 

 

 

 

 

 

-

+ OUT B

14

 

 

 

100ΚΩ

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To Control Pin on

 

 

16

 

 

 

 

 

 

 

 

 

 

HP-IN

 

 

 

 

 

 

 

 

Headphone Jack

100KΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

2,7,15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* +INA and +INB pins are connected to Bypass pin inside the IC.

Absolute Maximum Ratings

(Over operating free-air temperature range unless otherwise noted.)

Symbol

Parameter

Rating

Unit

VDD

Supply Voltage

6

V

TA

Operating Ambient Temperature Range

-40 to 85

° C

TJ

Maximum Junction Temperature

150

° C

TSTG

Storage Temperature Range

-65 to +150

° C

TS

Soldering Temperature,10 seconds

260

° C

VESD

Electrostatic Discharge

-2000 to 2000 *1

V

Note: *1. Human body model : C=100pF, R=1500Ω , 3 positive pulses plus 3 negative pulses

Copyright ANPEC Electronics Corp.

2

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

APA4863

Recommended Operating Conditions

 

 

 

Min.

Typ.

Max.

Unit

 

 

 

 

 

 

 

Supply Voltage, VDD

 

3

5

5.5

V

Operating free-air

VDD=5V,

4-Ω stereo BTL drive, with

-20

 

85

° C

temperature, TA

250mW/Ch average

proper PCB design

 

 

 

 

 

power

 

 

 

 

 

 

VDD=5V,

4-Ω stereo BTL drive, with

-20

 

 

 

 

 

85

 

 

1.8 W/Ch average

proper PCB design and 300

 

 

 

 

 

power

CFM forced-air cooling

 

 

 

 

 

 

 

 

 

 

 

Common mode

VDD=5 V

 

1.25

 

4.5

 

input voltage, VICM

 

 

 

 

 

V

VDD=3.3V

 

1.25

 

2.7

 

 

 

 

Dissipation Rating Table

Package

Air Flow

Thermal Resistance

TA≤ 25° C

TA=70° C

 

(CFM)

θ JA(° C/W)

 

 

SO16 +

0

50

2.5W

1.6W

TSSOP ++

0

73.2

1.7W

1.1W

 

200

66.6

1.8W

1.2W

TSSOP-P ++

0

37.6

3.3W

2.1W

 

200

32.3

3.8W

2.4W

+ : The parameter is measured with the recommended copper heat sink pattern on an 2-layer PCB, 11.7 in2 3.0× 2.4 in2 in PCB,

1oz. copper, 3.0× 1.5 in2 in coverage at Top-layer and Bottom-layer at 100% coverage (7.2in2). ++:The parameter is measured with the JEDEC standard test boards (multi-layer PCB).

Electical Characteristics

Electrical Characteristics for Entire IC

The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C

Symbol

Parameter

Test Conditions

 

APA4863

 

Unit

 

 

 

 

Min.

Typ.

 

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

Supply Voltage

 

3

 

 

5.5

V

IDD

Quiescent Power Supply

VIN=0V, IO=0A, HP-IN=0V

 

9

 

13.5

mA

Current

VIN=0V, IO=0A, HP-IN=4V

 

5

 

7.5

ISD

Shutdown Current

VPIN1= VDD

5

0.5

 

 

µ A

VIH

Headphone High Input Voltage

 

4

 

 

 

V

VIL

Headphone Low Input Voltage

 

 

 

 

0.8

V

Copyright ANPEC Electronics Corp.

3

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

APA4863

Electical Characteristics Cont.

Electrical Characteristics for BTL Mode Operation

The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C

Symbol

Parameter

Test Conditions

APA4863

Unit

 

 

 

Typ.

 

 

 

 

 

 

VOS

Output Offset Voltage

VIN=0V

5

mV

PO

Output Power

THD=1%, f=1kHz

 

 

 

 

RL=3Ω

2.2

W

 

 

RL=4Ω

1.8

 

 

 

RL=8Ω

1.2

 

 

 

THD=10%, f=1kHz

 

 

 

 

 

 

 

 

RL=3Ω

2.7

 

 

 

RL=4Ω

2.3

 

 

 

RL=8Ω

1.5

 

THD+N

Total Harmonic Distortion + Noise

AVD=2, f=1kHz

0.3

%

 

 

RL=4Ω , PO=1.8W

 

 

RL=8Ω , PO =1W

0.15

 

RSRR

Power Supply Rejection Ratio

VDD=5V, VRIPPLE=200MvRms , RL=8Ω

64

dB

 

 

CB=2.2µ F

 

 

XTALK

Channel Separation

f=1kHz , CB=2.2µ F, PO=1W, RL=8Ω

90

dB

SNR

Signal-to-Noise Ratio

VDD=5V, PO =1.1W, RL=8Ω

95

dB

Electrical Characteristics for SE Mode Operation

The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C

Symbol

Parameter

 

Test Conditions

 

APA4863

Unit

 

 

 

 

 

 

 

Typ.

 

 

 

 

 

 

 

 

 

VOS

Output Offset Voltage

VIN=0V

 

 

 

5

mV

PO

Output Power

THD=0.5%,

f=1kHz, RL=32Ω

 

90

mW

 

 

 

THD=1%,

f=1kHz, RL=8Ω

 

320

 

 

 

THD=10%,

f=1kHz, RL=8Ω

 

400

 

THD+N

Total Harmonic Distortion

AV= -1 , PO=75mW, f=1kHz, RL=32Ω

 

0.02

%

 

plus Noise

 

 

 

 

 

 

RSRR

Power Supply Rejection

VRIPPLE=200mV RMS , f=1kHz, CB=2.2µ F, RL=8Ω

49

dB

 

Ratio

 

 

 

 

 

 

XTALK

Channel Separation

f=1kHz , CB=2.2µ F, PO=32mW, RL=32Ω

85

dB

SNR

Signal-to-Noise Ratio

VDD=5V , PO =340mW, RL=8Ω

 

95

dB

Truth Table for Logic Inputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown

 

HP-IN

 

 

APA4863 Mode

 

 

Low

 

Low

 

 

Bridge -Tied

 

 

Low

 

High

 

 

Single-Ended

 

 

High

 

Low

 

 

APA4863 Shutdown

 

 

High

 

High

 

 

APA4863 Shutdown

 

 

 

 

 

 

 

 

 

 

Copyright ANPEC Electronics Corp.

 

4

 

 

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

 

 

 

 

APA4863

Pin Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HP-IN

SHUTDOWN

 

 

 

1

16

 

 

 

HP-IN

SHUTDOWN

 

 

 

 

 

1

20

 

 

 

 

 

 

 

 

 

GND

 

 

 

2

15

 

 

 

GND

GND

 

 

 

 

 

2

19

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

+ OUT A

 

 

 

 

 

3

18

 

 

 

+ OUT B

 

 

 

 

 

 

+ OUT B

 

 

 

 

 

 

 

 

 

 

 

 

3

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ OUT A

 

 

 

 

 

 

V

 

 

 

 

 

4

17

 

 

 

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

4

13

 

 

 

VDD

DD

 

 

 

 

 

5

16

 

 

 

- OUT B

 

 

 

 

 

 

- OUT A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

15

 

 

 

- IN B

- OUT A

 

 

 

5

12

 

 

 

- OUT B

- IN A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BYPASS

- IN A

 

 

 

6

11

 

 

 

- IN B

GND

 

 

 

 

7

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ IN A

 

 

 

 

 

8

13

 

 

 

+ IN B

GND

 

 

 

7

10

 

 

 

BYPASS

NC

 

 

 

 

9

12

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

+ IN B

+ IN A

 

 

 

9

 

 

 

NC

 

 

 

10

11

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top View for SOP

Top View for TSSOP

 

 

 

 

 

 

 

 

 

 

 

HP-IN

 

 

 

 

 

 

 

 

 

 

 

 

 

SHUTDOWN

 

 

 

 

1

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

2

 

19

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ OUT A

 

 

 

 

3

 

18

 

 

 

+ OUT B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

 

4

 

17

 

 

 

VDD

 

 

 

 

 

 

Thermal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- OUT A

 

 

 

 

5

 

16

 

 

 

- OUT B

 

 

 

 

 

 

Pad

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- IN A

 

 

 

 

6

 

15

 

 

 

- IN B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

14

 

 

 

BYPASS

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ IN A

 

 

 

 

8

 

13

 

 

 

+ IN B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

9

 

12

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

10

 

11

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top View

 

 

 

 

 

 

 

 

 

Bottom View

 

 

 

 

 

 

 

 

 

for TSSOP-P

 

 

 

 

 

 

 

for TSSOP -P

Pin Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

I/O

 

 

 

 

 

Description

GND

 

 

Ground connection of circuitry

VDD

 

I

Supply voltage input

 

 

 

 

 

 

 

 

 

 

 

 

 

+ INA

 

I

Non-inverting input of channel A, connected to bypass pin inside the IC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- INA

 

I

Input pin of channel A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ OUT A

 

O

A channel + output in BTL mode, high impedance in SE mode

 

 

 

 

- OUT A

 

O

A channel - output in BTL mode, + output in SE mode

 

 

 

 

+ IN B

 

I

Non-inverting input of channel B, connected to bypass pin inside the IC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- IN B

 

I

Input pin of channel B

 

 

 

 

 

 

 

 

 

 

 

 

 

+ OUT B

 

O

B channel + output in BTL mode, high impedance in SE mode

- OUT B

 

O

B channel - output in BTL mode, + output in SE mode

 

 

 

 

BYPASS

 

 

Connect to voltage divider for internal mid-supply bias

 

 

 

 

HP-IN

 

I

Headphone control pin input, hold high for single-ended mode operation

SHUTDOWN

 

I

Shutdown mode control pin input, places entire IC in shutdown mode

 

 

 

 

 

 

 

when held high, IDD= 0.5 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ANPEC Electronics Corp.

5

 

 

 

 

 

 

 

 

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

APA4863

Typical Characteristics

 

10

THD+N vs Output Power

 

 

 

THD+N vs Frequency

 

 

 

 

 

10

 

 

 

 

VDD=5V, RL=4Ω

 

 

 

VDD=5V, PO=1.8W

 

 

BW<80kHz

 

 

 

 

 

 

 

 

RL=4Ω,

BW<80kHz

 

 

 

 

 

 

 

 

 

1

20Hz

 

 

1

 

 

 

(%)

 

 

(%)

 

 

 

 

 

20kHz

 

 

 

 

 

THD+N

 

 

THD+N

 

 

 

 

 

1kHz

 

0.1

 

 

 

0.1

 

 

 

 

 

 

 

 

 

 

 

0.01

 

 

 

 

0.01

 

 

 

20

100

1k

10k 20k

 

 

 

 

 

 

 

 

 

10m

100m

1

3

 

 

 

 

Figure 1 : Output Power (W)

Figure 2 : Frequency (Hz)

Power Dissipation vs Output Power

THD+N vs Frequency

 

1.4

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

VDD=5V, PO=1W

 

 

 

 

 

 

 

RL=8Ω, BTL Mode

 

(W)

1 VDD=5V

 

 

 

1

 

 

 

Power Dissipation

 

 

 

 

 

 

 

 

 

0.8

 

RL=4Ω

 

 

 

 

 

 

0.6

 

 

 

 

 

 

 

AVD=10

 

 

RL= 8Ω

 

 

0.1

 

 

 

 

 

 

 

 

 

 

0.4

 

 

 

 

 

THD+N(%)

 

AVD=2

 

 

 

 

 

 

 

 

 

0.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.01

 

 

 

 

0

 

 

 

 

 

20

100

1k

10k 20k

 

0

0.5

1

1.5

2

2.5

 

 

 

Figure 3 : Output Power (W)

Figure 4 : Frequency (Hz)

Copyright ANPEC Electronics Corp.

6

www.anpec.com.tw

Rev. A.3 - Apr., 2001

 

 

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