ANPEC APA0710, APA0711 service manual

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APA0710/0711

1.1W Mono Low-Voltage Audio Power Amplifier

Features

Operating Voltage : 2.6V-5.5V

APA0710 Compatible with TPA711 APA0711 Compatible with TPA751

Bridge-Tied Load (BTL) or Single-Ended (SE) Modes Operation (for APA0710 only)

Supply Current

IDD=1.3mA at VDD=5V ,BTL mode

IDD=0.9mA at VDD=3.3V ,BTL mode

Low Shutdown Current

IDD=0.1μA

Low Distortion

630mW, at VDD=5V, BTL, RL=8Ω

THD+N=0.15%

– 280mW, at VDD=3.3V, BTL, RL=8Ω

THD+N=0.15%

Output Power at 1% THD+N

900mW, at VDD=5V, BTL, RL=8Ω

400mW, at VDD=3.3V, BTL, RL=8Ω

at 10% THD+N

1.1W at VDD=5V, BTL, RL=8Ω

480mW at VDD=3.3V, BTL, RL=8Ω

Depop Circuitry Integrated

Thermal Shutdown Protection and Over Current Protection Circuitry

High supply voltage ripple rejection

Surface-Mount Packaging

8 pin MSOP-P (with enhanced thermal pad) power package available

SOP-8 package

Lead Free Available (RoHS Compliant)

General Description

The APA0710 is a bridged-tied load (BTL) or singledended (SE) audio power amplifier developed especially for low-voltage applications where internal speakers and external earphone operation are required. The APA0711 is a only BTL audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 5V supply, the APA0710/1 can deliver 1.1W of continuous power into a BTL 8Ω load at 10% THD+N throughout voice band frequencies. Although this device is characterized out to 20kHz,its operation is optimized for narrow band applications such as wireless communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. A unique feature of the APA0710 is that it allows the amplifier to switch from BTL to SE on the fly when an earphone drive is required. This eliminates complicated mechanical switching or auxiliary devices just to drive the external load. This device features a shutdown mode for power-sensitive applications with special depop circuitry to eliminate speaker noise when exiting shutdown mode. The APA0710/1 are available in an 8-pin SOP and 8-pin MSOP-P with enhanced thermal pad.

Applications

Mobil Phones

PDAs

Digital Camera

Portable Electronic Devices

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 ã ANPEC Electronics Corp.

1

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

APA0710/0711

Pin Description

 

 

 

 

APA0710

 

 

 

 

APA0711

 

Shutdown 1

 

 

 

VO-

 

1

 

 

 

 

VO-

 

 

 

 

 

 

 

 

 

 

 

 

8

Shutdown

 

 

 

8

Bypass 2

 

 

 

7

GND

Bypass 2

 

 

 

7

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SE/BTL

3

 

 

 

6

VDD

IN+ 3

 

 

 

6

VDD

 

IN 4

 

 

 

 

VO+

IN- 4

 

 

 

5

VO+

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOP-8

APA0710

SOP-8

APA0711

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

VO-

Shutdown 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

VO-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bypass 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bypass 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN+ 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SE/BTL

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN- 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VO+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

VO+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MSOP-8-P

 

 

 

 

 

MSOP-8-P

 

NC = No internal connection

=Thermal Pad

(connected to GND plane for better heat dissipation)

Ordering and Marking Information

APA0710/1

 

 

 

 

 

 

 

 

 

 

Package Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K : SOP-8

XA : MSOP-8-P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead Free Code

Temp. Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I : -40 to 85 °C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Handling Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Handling Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp. Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR : Tape & Reel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Package Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead Free Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L : Lead Free Device Blank : Original Device

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

APA0710/1 K :

 

APA0710/1

 

XXXXX - Date Code

 

 

 

XXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A0710/1

 

 

 

 

APA0710/1 XA :

 

 

 

 

XXX

 

XXXXX - Date Code

 

 

 

 

 

 

 

 

 

 

 

 

XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C

for MSL classification at lead-free peak reflow temperature.

Copyright ã ANPEC Electronics Corp.

2

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

APA0710/0711

Block Diagram

 

RF

 

 

 

VDD

6

VDD

Audio

 

 

 

 

 

 

 

 

 

 

 

Input

RI

 

 

 

VDD/2

 

Cs

 

4

IN

 

_

 

 

 

 

 

 

 

 

 

 

 

Vo+

5

 

 

CI

2

Bypass

 

+

 

CC

 

 

 

 

 

 

 

 

CB

 

 

 

 

 

 

 

 

 

 

 

_

 

 

 

 

 

 

 

Vo-

8

 

From System Control

1

Shutdown

 

+

 

 

Bias

 

7

 

From HP Jack

 

 

GND

 

3

SE/BTL

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

APA0710

 

 

 

R F

 

 

 

VDD

6

VDD

Au d i o

 

 

 

 

 

 

 

 

 

 

 

In p u t

R I

 

 

 

VDD /2

 

C s

 

 

4

IN -

 

_

5

 

 

 

 

 

 

Vo+

 

C I

 

3

IN +

 

+

 

 

 

 

2

B y p a s s

 

 

 

 

 

C B

 

 

 

 

 

 

 

 

 

 

 

_

 

 

 

 

 

 

 

Vo-

8

 

 

 

 

 

 

+

 

 

From S ys te m C o n t r o l

1

S h u t d o w n

B i a s

G N D

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C o n t r o l

 

 

 

 

 

 

 

 

A P A 0 7 1 1

 

 

Copyright ã ANPEC Electronics Corp.

3

www.anpec.com.tw

Rev. A.5 - Oct., 2005

APA0710/0711

Absolute Maximum Ratings

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

Symbol

Parameter

Rating

Unit

 

 

 

 

 

 

VDD

Supply Voltage

-0.3 to 6

V

VIN

 

 

 

-0.3 to VDD+0.3

V

Input Voltage Range, Shutdown, SE/BTL

 

TA

Operating Ambient Temperature Range

-40 to 85

°C

TJ

Maximum Junction Temperature

Internally Limited*1

°C

TSTG

Storage Temperature Range

-65 to +150

°C

TS

Soldering Temperature, 10 seconds

260

°C

VESD

Electrostatic Discharge

-2000 to 2000*2

V

PD

Power Dissipation

Internally Limited

W

 

 

 

 

 

 

Note:

1.APA0710/1 integrated internal thermal shutdown protection when junction temperature ramp up to 170°C 2.Human body model: C=100pF, R=1500W, 3 positives pulses plus 3 negative pulses

3.Machine model: C=200pF, L=0.5mF, 3 positive pulses plus 3 negative pulses

Recommended Operating Conditions

Symbol

 

Parameter

 

 

Test Conditions

 

Min.

 

Max.

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

Supply Voltage

 

 

 

 

 

 

 

 

 

 

2.6

 

5.5

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown,

 

 

 

2.2

 

 

 

 

VIH

High-Level Voltage

 

Shutdown

 

 

 

 

V

 

 

 

 

 

 

 

 

 

 

0.9VDD

 

 

 

 

 

 

 

SE/BTL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown,

 

 

 

 

 

 

 

0.4

 

VIL

Low-Level Voltage

 

Shutdown

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

0.9VDD-1

 

 

 

 

SE/BTL

 

 

 

 

 

 

 

 

 

Thermal Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

 

Parameter

Value

 

 

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RTHJA

 

Thermal Resistance from Junction to Ambient in Free Air

 

 

 

 

 

 

 

 

 

MSOP-8-P*

50

 

 

 

°C/W

 

 

 

 

SOP-8

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*3.42in2 printed circuit board with 20z trace and copper through 6 vias of 12mil diameter vias. The thermal pad on the MSOP-8-P package with solder on the printed circuit board.

Copyright ã ANPEC Electronics Corp.

4

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

APA0710/0711

Electrical Characteristics

Electrical Characteristics at Specified Free - Air Temperature

VDD = 3.3V, TA = 25°C (unless otherwise noted)

Symbol

Parameter

 

 

 

Test Conditions

 

APA0710/1

Unit

 

 

 

 

 

 

 

 

 

 

Min.

 

Typ.

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOO

Output Offset Voltage

RL = 8Ω, RF = 10kΩ

 

 

 

20

mV

IDD

Supply Current

BTL mode, RF = 10kΩ

 

 

0.9

1.8

mA

SE mode, RF = 10kΩ

 

 

0.55

1.1

 

 

 

 

 

IDD(SD)

Supply Current,

RF = 10kΩ

 

 

0.1

2

μA

Shutdown Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown, VI = VDD

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

μA

|IH|

 

 

 

 

 

VI = VDD

 

 

 

1

 

Shutdown,

 

 

 

 

 

 

 

VI = VDD

 

 

 

1

 

 

 

SE/BTL,

 

 

 

 

 

 

Shutdown, VI = 0V

 

 

 

1

 

|IL|

 

 

 

 

 

 

VI = 0V

 

 

 

1

μA

 

Shutdown,

 

 

 

 

 

 

 

 

VI = 0V

 

 

 

 

 

 

 

SE/BTL,

 

 

 

1

 

Operating characteristic, VDD = 3.3V, TA = 25°C, RL = 8Ω

 

 

 

 

PO

Output Power (Note 1)

THD = 1%, BTL mode, RL = 8Ω

 

 

400

 

mW

THD = 1%, SE mode, RL = 32Ω

 

 

40

 

 

 

 

 

 

 

THD+N

Total Harmonic Distortion

PO = 280mW, BTL mode, RL = 8Ω

 

 

0.15

 

%

Plus Noise (Note 1)

 

 

 

Bom

Maximum Output Power

Gain = 2, THD+N = 2%

 

 

20

 

kHz

Bandwidth

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B1

Unity-Gain Bandwidth

Open Loop

 

 

2

 

MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

PSRR

Power Supply Rejection

CB = 1μF, BTL mode, RL = 8Ω

 

 

74

 

dB

Ratio (Note1)

CB = 1μF, SE mode, RL = 8Ω

 

 

61

 

Vn

Noise Output Voltage

Gain = 1, CB = 0.1μF

 

 

28

 

μV(rms)

TWU

Wake-up time

CB = 1μF

 

 

380

 

ms

VDD= 5V, TA= 25°C (unless otherwise noted)

Symbol

Parameter

Test Conditions

 

APA0710/1

Unit

 

 

 

 

Min.

 

Typ.

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

VOO

Output Offset Voltage

RL = 8Ω, RF = 10kΩ

 

 

 

20

mV

 

 

Ω

 

 

1.3

2.6

 

IDD

Supply Current

BTL mode, RF = 10k

 

 

 

 

mA

SE mode, RF = 10kΩ

 

 

0.75

1.5

 

 

 

 

 

IDD(SD)

Supply Current ,

RF = 10kΩ

 

 

0.1

2

μA

Shutdown Mode

 

 

 

 

 

 

 

 

 

Copyright ã ANPEC Electronics Corp.

5

 

 

 

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

 

 

 

 

APA0710/0711

Electrical Characteristics(Cont.)

Electrical Characteristics at Specified Free - Air Temperature (Cont.)

VDD= 5V, TA= 25°C (unless otherwise noted)

Symbol

Parameter

 

 

 

 

 

Test Conditions

 

APA0710/1

Unit

 

 

 

 

 

 

 

 

 

Min.

 

Typ.

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown, VI = VDD

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

μA

|IH|

 

 

 

 

 

VI = VDD

 

 

 

 

1

 

Shutdown,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SE/BTL,

VI = VDD

 

 

 

 

1

 

 

 

Shutdown, VI = 0V

 

 

 

 

1

 

|IL|

 

 

 

 

 

 

 

 

 

 

 

 

 

 

μA

 

 

 

 

 

 

 

VI = 0V

 

 

 

 

1

 

Shutdown,

 

 

 

 

 

 

 

 

VI = 0V

 

 

 

 

1

 

 

 

SE/BTL,

 

 

 

 

 

Operating characteristic, VDD = 5V, TA = 25°C, RL = 8Ω

 

 

 

 

 

 

PO

Output Power (Note 1)

THD = 1%, BTL mode, RL = 8Ω

 

 

900

 

mW

THD = 1%, SE mode, RL = 32Ω

 

 

94

 

 

 

 

 

 

 

THD+N

Total Harmonic Distortion

PO = 630mW, BTL mode,

 

 

0.15

 

%

Plus Noise (Note 1)

RL = 8Ω

 

 

 

 

Bom

Maximum Output Power

Gain = 2, THD+N = 2%

 

 

 

20

 

kHz

Bandwidth

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B1

Unity-Gain Bandwidth

Open Loop

 

 

 

2

 

MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSRR

Power Supply Rejection

CB = 1μF, BTL mode, RL = 8Ω

 

 

74

 

dB

Ratio (Note1)

 

 

 

 

μ

Ω

 

 

61

 

 

 

CB = 1 F, SE mode, RL

= 8

 

 

 

 

 

Vn

Noise Output Voltage

Gain = 1, CB = 0.1μF

 

 

 

28

 

μV(rms)

Twu

Wake-up time

CB = 1μF

 

 

 

400

 

ms

Note1 : Output power is measured at the output terminals of device at f=1KHz.

Pin Description

APA0710

 

Pin

 

I/O

 

 

 

Description

 

 

 

Name

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shutdown

1

I

Shutdown mode

control signal input, place entire

IC in shutdown mode

when held high.

 

 

 

 

 

 

 

 

 

 

 

 

 

Bypass

2

I

Bypass pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When SE/BTL

is held low, the APA0710 is in BTL mode. When SE/BTL is

SE/BTL

3

I

held high, the APA0710 is in SE mode

 

 

 

 

 

 

 

 

 

 

 

IN

4

I

In is the audio input terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VO+

5

O

VO+ is the positive output for BTL and SE modes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

6

 

Supply voltage input pin

 

 

 

GND

7

 

Ground connection for circuitry

 

 

 

 

 

 

 

 

 

 

 

 

 

VO-

8

O

VOis the negative output in BTL mode and a high-impedance output in SE

mode

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ã ANPEC Electronics Corp.

6

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

 

 

 

 

 

 

APA0710/0711

Pin Description

APA0711

 

Pin

 

I/O

Description

 

 

 

 

 

Name

No

 

 

 

 

 

 

 

 

 

 

 

 

 

I

Shutdown mode control signal input, place entire IC in shutdown mode

 

Shutdown

1

 

when held low.

 

 

 

 

 

 

Bypass

2

I

Bypass pin

 

 

 

 

 

 

 

IN+

3

I

IN+ is the non-inverting input. IN+ is typically tied to the Bypass terminal.

 

 

 

 

 

 

 

IN-

4

I

INis the inverting input. INis typically used as the audio input terminal.

 

 

 

 

 

 

 

VO+

5

O

VO+ is the positive BTL output.

 

 

 

 

 

 

 

VDD

6

 

Supply voltage input pin.

 

GND

7

 

Ground connection for circuitry.

 

 

 

 

 

 

 

VO-

8

O

VOis the negative BTL output.

 

 

 

 

 

 

Typical Application Circuit

for APA0710 Application

 

RF

 

 

 

 

 

 

 

1 0 k Ω

 

 

 

VDD

6

VDD

Audio

 

 

 

 

R I

 

 

 

 

 

 

Input

 

 

VDD/2

 

 

Cs

10kΩ

 

 

_

CC

 

4

 

 

1μ F

 

IN

 

330μ F

 

 

 

 

 

 

 

 

Vo+

5

 

CI

 

2

Bypass

 

+

 

 

0.47μ F

 

 

 

 

 

1 k Ω

 

 

 

 

 

 

 

 

 

CB

 

 

 

 

 

 

 

1 μ F

 

 

 

 

 

 

 

 

 

 

 

_

 

 

 

 

 

 

 

Vo-

8

 

From System Control

1

Shutdown

 

+

7

 

Bias

 

 

 

 

 

 

 

 

3

SE/BTL

GND

 

 

 

 

Control

 

 

 

 

 

 

 

0.1μ F

100kΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

 

100kΩ

 

 

 

 

 

 

Copyright ã ANPEC Electronics Corp.

7

www.anpec.com.tw

Rev. A.5 - Oct., 2005

APA0710/0711

Typical Application Circuit (Cont.)

for APA0711 Application

 

R F

 

 

 

 

 

 

 

1 0 k Ω

 

 

 

VD D

6

VD D

Audio

 

 

 

 

R I

 

 

 

 

 

 

Input

 

 

VDD/2

 

 

C s

10kΩ

 

 

_

 

 

4

IN-

 

 

1 μ F

 

 

 

 

 

 

 

 

 

Vo+

5

 

C I

 

3

IN+

 

+

 

 

0.47μ F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Byp a s s

 

 

 

 

 

C B

 

 

 

 

 

 

 

1 μ F

 

 

 

_

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vo-

8

 

 

 

 

 

 

+

7

 

From S ystem Control

1

Shutdown

Bias

GND

 

 

 

 

 

 

 

Control

 

 

 

for APA0711 Differential Input Application

 

 

 

RF

 

 

 

 

 

 

 

 

 

1 0 kΩ

 

 

 

VD D

6

VD D

 

 

 

 

 

 

 

Audio

C I

 

R I

 

 

VDD/2

 

 

C s

Input-

0.47μ F 10kΩ

 

 

_

 

4

IN-

 

 

1 μ F

 

 

 

 

 

 

 

 

 

 

 

 

 

Vo+

5

 

 

 

 

 

3

IN+

 

+

 

 

 

 

 

 

 

 

 

 

 

Audio

 

 

R I

 

 

 

 

 

 

Input+

 

 

10kΩ RF

2

Bypass

 

 

 

 

 

 

 

1 0 k Ω

 

 

 

 

 

C I

 

C B

 

 

 

_

 

 

 

0.47

μ F

 

 

 

 

 

 

1 μ F

 

 

 

 

 

 

 

 

 

 

 

Vo-

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

7

 

From S ys tem Control

1

Shutdown

Bias

GND

 

 

 

 

 

 

 

 

 

Control

 

 

 

Copyright ã ANPEC Electronics Corp.

8

www.anpec.com.tw

Rev. A.5 - Oct., 2005

ANPEC APA0710, APA0711 service manual

APA0710/0711

Typical Characteristics

PSRR vs. Frequency

 

+0

 

 

 

 

(dB)

 

 

No-Capacitor

 

 

-20

 

 

 

 

 

 

 

 

 

Ration

-40

CB=1mF

CB=0.1mF

 

 

 

 

 

Rejection

-60

 

 

 

 

 

 

CB=2.2mF

 

 

Ripple

-80

 

 

 

VDD=3.3V

 

 

 

 

 

 

 

 

RL=8W

 

 

 

 

SE

 

 

 

 

 

 

 

 

 

-100

 

 

 

 

 

20

100

1k

10k

20k

Frequency (Hz)

PSRR vs. Frequency

 

+0

RL=8W

 

 

 

 

 

 

 

 

(dB)

 

CB=1mF

 

 

 

-20

BTL

 

 

 

 

 

 

 

 

 

 

 

 

Ration

-40

 

 

 

 

 

 

 

 

 

Rejection

-60

 

 

 

 

 

VDD=3.3V

 

 

 

 

 

 

 

 

Ripple

-80

 

 

 

 

 

 

VDD=5V

 

 

 

 

 

 

 

 

-100

 

 

 

 

 

20

100

1k

10k

20k

Frequency (Hz)

PSRR vs. Frequency

 

+0

 

 

 

 

 

(dB)

 

 

 

No-Capacitor

 

-20

 

 

 

 

 

 

 

 

 

 

 

Ration

-40

 

CB=1mF

 

CB=0.1mF

 

 

 

 

 

 

 

Rejection

-60

 

 

 

 

 

 

 

 

 

CB=2.2mF

 

Ripple

 

 

 

 

 

-80

VDD=5V

 

 

 

 

 

RL=8W

 

 

 

 

 

SE

 

 

 

 

 

 

 

 

 

 

-100

 

 

 

 

 

 

20

100

1k

10k

20k

Frequency (Hz)

Supply Current vs. Supply Voltage

 

1600

 

 

 

 

 

 

 

RF=10kW

 

 

 

 

 

 

1400

 

 

 

 

 

 

μA)

1200

BTL(SE/BTL=0.1VDD)

 

 

 

 

 

 

 

(

1000

 

 

 

 

 

 

Current

 

 

 

 

 

 

800

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply

600

 

 

 

 

 

 

400

SE(SE/BTL=0.9VDD)

 

 

 

 

200

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

2.5

3

3.5

4

4.5

5

5.5

Supply Voltage(V)

Copyright ã ANPEC Electronics Corp.

9

www.anpec.com.tw

Rev. A.5 - Oct., 2005

 

 

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