Eutech EUA4992JIR1 2w stereo audio power amplifier Datasheet

Preliminary
EUA4992
2W Stereo Audio Power Amplifier
DESCRIPTION
FEATURES
The EUA4992 is a dual bridge-connected audio power
amplifier designed for portable communication device
applications such as mobile phone applications. The
EUA4992 is capable of delivering 1.3W of continuous
average power to an 8Ω BTL and with less than 1%
distortion (THD+N) from a 5.0V power supply, and
540mW to an 8Ω BTL load from a 3.3V power supply.
The EUA4992 provides high quality audio while requiring
few external components and minimal power consumption.
It features a low-power shutdown mode, which is achieved
by driving the SHUTDOWN pin with logic low.
The EUA4992 contains circuitry to prevent from ”pop and
click” noise that would otherwise occur during turn-on and
turn-off transitions.
For maximum flexibility, the EUA4992 provides an
externally controlled gain (with resistors), as well as an
externally controlled turn-on and turn-off times (with the
bypass capacitor).
z
z
z
z
z
z
z
z
z
APPLICATIONS
The EUA4992 is available in a 3mm×3mm TQFN package.
z
z
z
z
Typical Application Circuit
Figure1.
DS4992
Ver 0.1
Jan. 2008
Output Power at 1% THD+N, VDD=5V
-- 2W/CH (typ) into a 4Ω Load
-- 1.3W/CH (typ) into a 8Ω Load
Output Power at 1% THD+N, VDD=3.3V
-- 0.84W/CH (typ) into a 4Ω Load
-- 0.54W/CH (typ) into a 8Ω Load
Shutdown Current 0.04µA (typ)
Supply Voltage Range 2.5V to 5.5V
Suppress “ click and pop”
Thermal Shutdown Protection Circuitry
Micro Power Shutdown Mode
TQFN-16 (3mm × 3mm) Package
RoHS compliant and 100% lead(Pb)-free
1
Cell phones, PDA, MP4,PMP
Portable and Desktop Computers
Desktops audio System
Multimedia Monitors
EUA4992
Preliminary
Pin Configurations
Package Type
Pin Configurations
TQFN-16
Pin Description
NAME
PIN
I/O
INA
4
I
Left Channel Input
INB
8
I
Right Channel Input
-OUTA
3
O
Left Channel –Output
+OUTA
1
O
Left Channel +Output
-OUTB
10
O
Right Channel –Output
+OUTB
12
O
Right Channel +Output
VDD
2,11
SHUTDOWN
15
BYPASS
9
GND
5,6,7,13,14,16
DS4992
Ver 0.1
Jan. 2008
DESCRIPTION
Supply Voltage
I
Shutdown control, hold low for shutdown mode
Bypass capacitor which provides the common mode voltage
GND
2
Preliminary
EUA4992
Ordering Information
Order Number
Package Type
Marking
Operating Temperature range
EUA4992JIR1
TQFN-16
xxxxx
4992
-40 °C to 85°C
EUA4992
□ □ □ □
Lead Free Code
1: Lead Free 0: Lead
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
J: TQFN
DS4992
Ver 0.1
Jan. 2008
3
EUA4992
Preliminary
Absolute Maximum Ratings
▓
▓
▓
▓
Supply voltage ---------------------------------------------------------------------------------------------6V
Input voltage --------------------------------------------------------------------------------- -0.3 V to VDD +0.3V
Storage temperature rang, Tstg ------------------------------------------------------------------- -65°C to 150°C
Junction Temperature -------------------------------------------------------------------------------------- 150°C
Recommended Operating Conditions
Min
Max
Unit
Supply voltage (from AC input),VCC
2.5
5.5
V
Operating junction temperature range, TJ
-40
125
°C
Electrical Characteristics (5V)
The following specifications apply for VDD=5V unless otherwise noted. Limits apply for TA=25°C.
Symbol
VDD
Parameter
Supply Voltage
Quiescent Power Supply
Current
IDD
Conditions
Min
EUA4992
Typ
Max.
2.5
Unit
5.5
V
VIN=0V,IO=0A
6
14
mA
GND applied to the shutdown
pin
1
3
µA
ISD
Shutdown Current
VIH
Shutdown Input Voltage High
VIL
Shutdown Input Voltage Low
TWU
Turn on time
1µF bypass cap (C4)
VOS
Output Offset Voltage
VIN=0V
5
W
Output Power
THD+N=1%, f=1KHz RL=4Ω
2
PO
THD+N=1%, f=1KHz RL=8Ω
1.3
W
Total Harmonic Distortion +
Noise
1KHz, Avd=2 RL=8Ω,Po=1W
0.08
%
Power Supply Rejection Ratio
Input grounded 217Hz
Vripple=200m Vp-p C4=1µF,
RL=8Ω
Input grounded 1KHz
Vripple=200m Vp-p C4=1µF,
RL=8Ω
THD+N
PSRR
1
V
0.4
100
V
ms
25
mV
51
dB
60
Xtalk
Channel separation
f=1KHz, C4=1µF
65
dB
VNO
Output noise voltage
1KHz
11
uVrms
DS4992
Ver 0.1
Jan. 2008
4
EUA4992
Preliminary
Electrical Characteristics (3.3V)
The following specifications apply for VDD=3.3V unless otherwise noted. Limits apply for TA=25°C.
Symbol
Parameter
Conditions
EUA4992
Min
Typ
Max.
Unit
IDD
Quiescent Power Supply
Current
VIN=0V,IO=0A
4.1
mA
ISD
Shutdown Current
GND applied to the shutdown
pin
0.02
µA
VIH
Shutdown Input Voltage High
VIL
Shutdown Input Voltage Low
TWU
Turn on time
1µF bypass cap (C4)
100
ms
VOS
Output Offset Voltage
VIN=0V
2.5
mV
W
Output Power
THD+N=1%, f=1KHz RL=4Ω
0.84
PO
THD+N=1%, f=1KHz RL=8Ω
0.54
W
Total Harmonic Distortion +
Noise
1KHz, Avd=2 RL=8Ω,Po=0.45W
0.08
%
Power Supply Rejection Ratio
Input grounded 217Hz
Vripple=200m Vp-p C4=1µF,
RL=8Ω
Input grounded 1KHz
Vripple=200m Vp-p C4=1µF,
RL=8Ω
THD+N
PSRR
1
0.4
Xtalk
Channel separation
f=1KHz, C4=1µF
VNO
Output noise voltage
1KHz
DS4992
Ver 0.1
Jan. 2008
V
5
V
52
dB
60
60
dB
10.15
uVrms
EUA4992
Preliminary
Packaging Information
TQFN-16
SYMBOLS
A
A1
b
E
D
D1
E1
e
L
DS4992
Ver 0.1
Jan. 2008
MILLIMETERS
MIN.
MAX.
0.70
0.80
0.00
0.05
0.18
0.30
2.90
3.10
2.90
3.10
1.70
1.70
0.50
0.30
0.50
6
INCHES
MIN.
0.028
0.000
0.007
0.114
0.114
MAX.
0.031
0.002
0.012
0.122
0.122
0.067
0.067
0.020
0.012
0.020
Similar pages