APA4835RI-TR ANPEC Anpec Electronics Coropration, APA4835RI-TR Datasheet

APA4835RI-TR

Manufacturer Part Number

APA4835RI-TR

Description

APA4835RI-TRStereo 2.8W Audio Power Amplifier with DC Volume Control and Selectable Gain

Manufacturer

ANPEC Anpec Electronics Coropration

Datasheet

1.APA4835RI-TR.pdf (22 pages)

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APA4835

Features

Applications

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.

Rev. A.7 - Mar., 2003

DC Volume Control Interface , 0dB to –105dB

Operating Voltage : 3.3V to 5V

Stereo switchable bridged/single-ended

power amplifiers

Low Supply Current , I

Low Shutdown Current , I

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

Modes Operation

Output Power at 1% THD+N , V

–

Output Power at 10% THD+N , V

–

Single-ended mode at 1.0% THD+N

–

Depop Circuitry Integrated

System Beep Detect

Thermal shutdown protection circuitry

High supply voltage ripple rejection

Low Crossover Distortion

PC99 Compliant

28-pin TSSOP-P (with enhanced thermal pad)

power package available

Notebook and Desktop Computers

Multimedia Monitors

Portable Applications

2.2W/Ch (typ) into a 3

2.0W/Ch (typ) into a 4

1.2W/Ch (typ) into a 8

2.8W/Ch (typ) into a 3

2.3W/Ch (typ) into a 4

1.5W/Ch (typ) into a 8 Load

95mW/Ch (typ) into 32 Load

ANPEC Electronics Corp.

Stereo 2.8W Audio Power Amplifier with DC Volume Control

= 13mA at Stereo BTL

Load

= 0.7µA

=5V

The APA4835 is a monolithic integrated circuit , which

provides DC volume control , and a stereo bridged

audio power amplifiers capable of producing 2.8W

(2.2W) into 3

APA4835 includes a DC volume control , stereo

bridge-tied and single-ended audio power amplifiers

, stereo docking outputs , and a selectable gain con-

trol , that makes it optimally fittable for notebook PC

, multimedia monitors , and other portable

applications. The attenuator range of the volume

control in APA4835 is from 0dB (DC_Vol=0.7V

–105dB (DC_Vol=0V) with 32 steps. Both of the

depop circuitry and the thermal shutdown protection

circuitry are integrated in APA4835 , that reduces

pops and clicks noise during power up or shutdown

mode operation , and protects the chip from being

destroyed by over temperature failure. To simplify

the audio system design , APA4835 combines a ste-

reo bridge-tied loads (BTL) mode for speaker drive

and a stereo single-end (SE) mode for headphone

drive into a single chip , where both modes are easily

switched by the SE/BTL input control pin signal. Be-

sides the low supply current design to increase the

efficiency of the amplifiers , APA4835 also features a

shutdown function which keeps the supply current

only 0.7µA (typ).

Pin Description

General Description

SHUTDOWN

Gain Select

Right Dock

Left Dock

Right In

Beep In

DC Vol

Left In

GND

Mode

Mute

GND

with less than 10% (1.0%) THD+N.

and Selectable Gain

www.anpec.com.tw

Right Out +

Right Out -

Right Gain 2

Right Gain 1

GND

BYPASS

HP Sense

GND

Left Gain 1

Left Gain 2

Left Out -

Left Out +

) to

Related parts for APA4835RI-TR

APA4835RI-TR Summary of contents

Page 1

APA4835 Stereo 2.8W Audio Power Amplifier with DC Volume Control Features Operating Voltage : 3. Stereo switchable bridged/single-ended power amplifiers DC Volume Control Interface , 0dB to –105dB Low Supply Current , I = 13mA at Stereo BTL ...

Page 2

APA4835 Ordering Information Block Diagram Mode Mute HP Sense DC Vol Control ...

Page 3

APA4835 Thermal Characteristics Symbol R Thermal Resistance from Junction to Ambient in Free Air THJA *5in 2 printed circuit board with 2oz trace and copper pad through 12 25mil diameter vias. The thermal pad on the TSSOP_P package without solder ...

Page 4

APA4835 Electical Characteristics (Cont.) Electrical Characteristics for BTL Mode Operation (Cont.) The following specifications apply for V DD Symbol Parameter THD+N Total Harmonic Distortion + Noise PSRR Power Supply Rejection Ratio X Channel Separation TALK SNR Signal-to-Noise Ratio V Output ...

Page 5

APA4835 Pin Description Pin I/O Name No VDD 6, 16, 27 Supply voltage input pin DC_Vol 7 I Volume control function input pin. Right Dock 9 O Right docking output pin Right Right channel audio input pin ...

Page 6

APA4835 Typical Application Circuit Inte rnal g ain se lect 100K HP Sense 1 00K 21 To Control Pin Hea dpho Con trol ...

Page 7

APA4835 Typical Characteristics RL=3 Po=1.75W 2 BTL 1 0.5 0.2 0.1 0.05 0.02 0. 100 200 500 1k Frequency (Hz = RL=8 Po=1.0W 2 BTL 1 0.5 0.2 AV=8 ...

Page 8

APA4835 Typical Characteristics Cont = RL=3 BTL 2 1 f=20kHz 0.5 0.2 f=1kHz 0.1 f=20Hz 0.05 0.02 0.01 10m 20m 50m 100m 200m Output Power ( = RL=8 BTL 2 1 f=20kHz ...

Page 9

APA4835 Typical Characteristics Cont = RL=8 Po=0.25W 0.5 0.2 AV=1 0.1 0.05 AV=4 AV=2 0.02 0. 100 200 500 1k Frequency (Hz = RL=10k 2 Vin=1Vrms SE ...

Page 10

APA4835 Typical Characteristics Cont = RL= 0.5 f=20kHz 0.1 0.05 f=20Hz 0.02 0.01 f=1kHz 0.005 0.002 0.001 10m 20m 30m 50m 70m 100m Output Power (W =3. RL=4 Po=0.65W ...

Page 11

APA4835 Typical Characteristics Cont =3. RL=16 Po=0.2W 2 BTL 1 0.5 0.2 0.1 AV=8 AV=2 0.05 AV=4 0.02 0. 100 200 500 1k Output Power ( =3. RL=8 BTL 2 ...

Page 12

APA4835 Typical Characteristics Cont =3. RL=8 Po=100mW 0.5 0.2 AV=1 0.1 AV=4 0.05 AV=2 0.02 0. 100 200 500 1k Frequency (Hz =3. RL=10k Vin=1Vp 2 SE ...

Page 13

APA4835 Typical Characteristics Cont =3. RL= 0.5 0.2 f=20kHz 0.1 0.05 f=1kHz 0.02 f=20Hz 0.01 10m 12m 15m 20m 25m 30m 35m 42m Output Power ( = RL=10k 2 ...

Page 14

APA4835 Typical Characteristics Cont. 100u No filter 50u A_wtd filter 20u 10u 5u V =5V DD RL=8 2u Av=2V/V BTL 100 200 500 1k Frequency (Hz =5V DD RL=8 -20 Po=1W Av=2V/V BTL -40 -60 ...

Page 15

APA4835 Typical Characteristics Cont. +12 Cf=0.22 F +10 Cf=0 Cf=0.068 100 200 500 1k Frequency (Hz) 0.7 0.6 0.5 0.4 R =16 L 0.3 0.2 R = ...

Page 16

APA4835 Typical Characteristics Cont Load 1 7 2.5 BTL -Supply Voltage (V) DD 0.16 V ...

Page 17

APA4835 Typical Characteristics Cont. 0.8 0.7 0.6 0.5 0.4 0.3 0.2 THD=10% THD=1% 0 Load Resistance ( ) 0.34 0.32 0.3 0.28 0.26 ...

Page 18

APA4835 Typical Characteristics Cont =5V DD -10 Vin=200mVp RL=8 -20 Cb=2.2 F SE/BTL -30 -40 -50 -60 -70 - 100 200 500 1k Frequency (Hz) Copyright ANPEC Electronics Corp. Rev. A.7 - Mar., 2003 2k 5k ...

Page 19

APA4835 Packaging Information eference egistration M O -153 EXPOSED THERMAL PAD ZONE (THERMALLY ENHANCED ...

Page 20

APA4835 Physical Specifications Terminal Material Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb) Lead Solderability Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3. Reflow Condition (IR/Convection or VPR Reflow) Reference JEDEC Standard J-STD-020A APRIL 1999 Pre-heat temperature Classification Reflow Profiles ...

Page 21

APA4835 Reliability test program Test item SOLDERABILITY MIL-STD-883D-2003 HOLT MIL-STD-883D-1005.7 PCT JESD-22-B, A102 TST MIL-STD-883D-1011.9 ESD MIL-STD-883D-3015.7 Latch-Up JESD 78 Carrier Tape & Reel Dimensions Copyright ANPEC Electronics Corp. Rev. A.7 - Mar., 2003 Method 245 ...

Page 22

APA4835 ...

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