APA4838RI Ver la hoja de datos (PDF) - Anpec Electronics

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APA4838RI

Stereo 2.8W Audio Power Amplifier with DC Volume Control and Selectable Gain

Anpec Electronics 

APA4838

Electrical Characteristics (Cont.)

Electrical Characteristics for SE Mode Operation (Cont.)

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

Symbol

Parameter

Test Conditions

VOS

PO

THD+N

PSRR

XTALK

SNR

VN

Output Offset Voltage

Output Power

Total Harmonic Distortion

plus Noise

Power Supply Rejection

Ratio

Channel Separation

Signal-to-Noise Ratio

Output Noise Voltage

VIN=0V

THD=1%,

THD=10%,

f=1kHz, RL=32Ω

f=1kHz, RL=32Ω

AV= 1 , VOUT=1VRMS, RL=10kΩ, f=1kHz

PO =75mW, RL=32Ω, AV= 1, f=1kHz

VRIPPLE=100mVRMS , f=120Hz, CB=2.2µF

CB=2.2µF, RL=8Ω , f=1kHz

PO =75mW, RL=32Ω, A-Wtd Filter

RL=32Ω, A-Wtd Filter

APA4838

Typ.

5

95

110

0.05

0.07

52

90

102

20

Unit

mV

mW

%

%

dB

dB

dB

µV

Pin Description

Pin

Name

No

GND

1, 8, 14,

20, 23

Shutdown

2

Gain Select

3

Mode

4

Mute

VDD

DC_Vol

Right Dock

Right In

Beep In

Left In

Left Dock

Left Out +

Left Out -

Left Gain 2

Left Gain 1

HP Sense

5

6, 16, 27

7

9

10

11

12

13

15

17

18

19

21

I/O

Description

Ground connection for circuitry.

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

held high, Idd=0.7uA

I Gain select input pin, logic high will switch the amplifier to external gain

mode, and logic low will switch to internal unity gain.

I Mode select input pin, fixed gain when logic L and gain adjustable mode

when logic H.

I Mute control input pin, active H.

Supply voltage input pin

I Volume control function input pin.

O Right docking output pin

I Right channel audio input pin

I Beep signal input pin

I Left channel audio input pin

O Right docking output pin

O Left channel positive output pin

O Left channel negative output pin

Connect pin 2 of the external gain setting resistor for left channel

Connect pin 1 of the external gain setting resistor for left channel

I Headphone sense control pin

Copyright  ANPEC Electronics Corp.

5

Rev. A.1 - Apr., 2003

www.anpec.com.tw

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