Power Amplifier. APA4835 Datasheet

APA4835 Amplifier. Datasheet pdf. Equivalent

Part APA4835
Description Stereo 2.8W Audio Power Amplifier
Feature APA4835 Features Stereo 2.8W Audio Power Amplifier with DC Volume Control and Selectable Gain Gene.
Manufacture ANPEC
Datasheet
Download APA4835 Datasheet

APA4835 Stereo 2.8W Audio Power Amplifier with DC Volume Con APA4835 Datasheet
APA4835 Features Stereo 2.8W Audio Power Amplifier with DC APA4835 Datasheet
Recommendation Recommendation Datasheet APA4835 Datasheet





APA4835
APA4835
Features
Stereo 2.8W Audio Power Amplifier with DC Volume Control
and Selectable Gain
General Description
Operating Voltage : 3.3V to 5V
Stereo switchable bridged/single-ended
power amplifiers
DC Volume Control Interface , 0dB to –105dB
Low Supply Current , IDD = 13mA at Stereo BTL
Low Shutdown Current , IDD = 0.7µA
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 Load
2.0W/Ch (typ) into a 4 Load
1.2W/Ch (typ) into a 8 Load
Output Power at 10% THD+N , VDD=5V
2.8W/Ch (typ) into a 3 Load
2.3W/Ch (typ) into a 4 Load
1.5W/Ch (typ) into a 8Load
Single-ended mode at 1.0% THD+N
95mW/Ch (typ) into 32Load
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
Applications
Notebook and Desktop Computers
Multimedia Monitors
Portable Applications
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 3with less than 10% (1.0%) THD+N.
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=0.7VDD) to
–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
GND
SHUTDOWN
Gain Select
Mode
Mute
VDD
DC Vol
GND
Right Dock
Right In
Beep In
Left In
Left Dock
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 Right Out +
27 VDD
26 Right Out -
25 Right Gain 2
24 Right Gain 1
23 GND
22 BYPASS
21 HP Sense
20 GND
19 Left Gain 1
18 Left Gain 2
17 Left Out -
16 VDD
15 Left Out +
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.
Rev. A.7 - Mar., 2003
1
www.anpec.com.tw



APA4835
APA4835
Ordering Information
APA4835
H andling C ode
Tem p. Range
Package Code
APA4835 R :
APA4835
XXXXX
Block Diagram
Package Code
R : TSS O P -P
Temp. Range
I : -40 to 85 ° C
H andling C ode
TU : Tube
TR : Tape & Reel
X X XX X - D ate C ode
Internal gain select
20K
20K
Mode
Mute
HP Sense
DC Vol Control
Mode
Control
20K
Left Dock
20K
Left In
200K
200K
20K
0.33µF
Beep In
0.33µF
Right In
Beep
Detect
Volume
Bias Control
32 steps
Right Dock
20K
Shutdown
VDD
GND
Power
Management
10K
10K
20K20K
20K
20K
10K
10K
Bypass
Click and Pop
Suppression
Circuitry
20K0.068µF
- Left Out
+ Left Out
+ Right Out
- Right Out
20K
0.068µF
20K
20K
Absolute Maximum Ratings
(Over operating free-air temperature range unless otherwise noted.)
Symbol
Parameter
Rating
VDD Supply Voltage
6
TA Operating Ambient Temperature Range
-40 to 85
TJ Maximum Junction Temperature
Internally limited*1
TSTG
Storage Temperature Range
-65 to +150
TS Soldering Temperature,10 seconds
260
VESD
Electrostatic Discharge
-2000 to 2000*2
Note :*1. APA4835 integrates internal thermal shutdown protection when junction temperature ramp up to 150°C.
*2. Human body model : C=100pF, R=1500, 3 positive pulses plus 3 negative pulses
Unit
V
°C
°C
°C
°C
V
Copyright ANPEC Electronics Corp.
Rev. A.7 - Mar., 2003
2
www.anpec.com.tw





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