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POWER AMPLIFIER. AP4890B Datasheet

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POWER AMPLIFIER. AP4890B Datasheet






AP4890B AMPLIFIER. Datasheet pdf. Equivalent




AP4890B AMPLIFIER. Datasheet pdf. Equivalent





Part

AP4890B

Description

1W AUDIO POWER AMPLIFIER



Feature


INTEGRATED CIRCUITS INC.--- AP4890B AP48 90B --- 1W AUDIO POWER AMPLIFIER 1. DES CRIPTION : The AP4890B is an audio powe r amplifier designed for portable commu nication device applications such as mo bile phone applications. The AP4890B is capable of delivering 1W of continuous average power to an 8Ω BTL and with less than 1% distortion (THD+N) from a 5.0V power supply, a.
Manufacture

APLUS

Datasheet
Download AP4890B Datasheet


APLUS AP4890B

AP4890B; nd 350mW to a 8Ω BTL load from a 3V po wer supply. The AP4890B provides high q uality audio while requiring few extema l components and minimal power consumpt ion. It features a low-power shutdown m ode, which is achieved by driving the S HUTDOWN pin with logic low. The AP4890B contains circuitry to prevent from “ pop and click” noise that would other wise occur during turn-o.


APLUS AP4890B

n and turn-off transitions.For maximum f lexibility, the AP4890B provides an ext ernally controlled gain (with resistors ), as well as an externally controlled turn-on and turn-off times (with the by pass capacitor). 2. FEATURE : ƒ 2.5-5. 2V operation ƒ 65dB PSRR at 217Hz, VDD =5V ƒ 0.1µA ultra low current shutdow n mode ƒ Improved pop & click circuitr y ƒ No output coupling .


APLUS AP4890B

capacitors, snubber networks or bootstra p capacitors required ƒ Thermal shutdo wn protection ƒ External gain configur ation capability ƒ RoHS compliant and 100% lead(Pb)-free ƒ APPLICATIONS ƒ M obile Phones ƒ PDAs ƒ Portable electr onic devices http://www.aplusinc.com.t w Page 1 / 15 Tel : 886-2-2782-9266 V er1.2 INTEGRATED CIRCUITS INC.--- AP48 90B 3. PIN CONFIGURATION .

Part

AP4890B

Description

1W AUDIO POWER AMPLIFIER



Feature


INTEGRATED CIRCUITS INC.--- AP4890B AP48 90B --- 1W AUDIO POWER AMPLIFIER 1. DES CRIPTION : The AP4890B is an audio powe r amplifier designed for portable commu nication device applications such as mo bile phone applications. The AP4890B is capable of delivering 1W of continuous average power to an 8Ω BTL and with less than 1% distortion (THD+N) from a 5.0V power supply, a.
Manufacture

APLUS

Datasheet
Download AP4890B Datasheet




 AP4890B
INTEGRATED CIRCUITS INC.--- AP4890B
AP4890B --- 1W AUDIO POWER AMPLIFIER
1. DESCRIPTION :
The AP4890B is an audio power amplifier designed for portable communication device
applications such as mobile phone applications. The AP4890B is capable of delivering
1W of continuous average power to an 8BTL and with less than 1% distortion
(THD+N) from a 5.0V power supply, and 350mW to a 8BTL load from a 3V power supply.
The AP4890B provides high quality audio while requiring few extemal components and
minimal power consumption. It features a low-power shutdown mode, which is achieved
by driving the SHUTDOWN pin with logic low.
The AP4890B contains circuitry to prevent from “pop and click” noise that would otherwise
occur during turn-on and turn-off transitions.For maximum flexibility, the AP4890B provides
an externally controlled gain (with resistors), as well as an externally controlled turn-on and
turn-off times (with the bypass capacitor).
2. FEATURE :
ƒ 2.5-5.2V operation
ƒ 65dB PSRR at 217Hz, VDD=5V
ƒ 0.1µA ultra low current shutdown mode
ƒ Improved pop & click circuitry
ƒ No output coupling capacitors, snubber networks or bootstrap capacitors required
ƒ Thermal shutdown protection
ƒ External gain configuration capability
ƒ RoHS compliant and 100% lead(Pb)-free
ƒ APPLICATIONS
ƒ Mobile Phones
ƒ PDAs
ƒ Portable electronic devices
http://www.aplusinc.com.tw
Page 1 / 15
Tel : 886-2-2782-9266 Ver1.2




 AP4890B
INTEGRATED CIRCUITS INC.--- AP4890B
3. PIN CONFIGURATION (Top View) :
]
4. PIN DESCRIPTION :
PIN PIN I/O
DESCRIPTION
SHUT
DOWN-B
BYPASS
+IN
-IN
VO1
VDD
1
2
3
4
5
6
I
The device enters in shutdown mode when a low level
is applied on this pin
I
Bypass capacitor pin which provides the
common mode voltage
I
Positive input of the first amplifier, receives the
common mode voltage
Negative input of the first amplifier, receives the audio
I input signal. Connected to the feedback resistor Rf
and to the input resistor Rin.
O
Negative output of the AP4890B. Connected to the load
and to the feedback resistor Rf
I Analog VDD input supply.
GND
7
Ground connection for circuitry.
VO2
8O
Positive output of the AP4890B.
http://www.aplusinc.com.tw
Page 2 / 15
Tel : 886-2-2782-9266 Ver1.2




 AP4890B
INTEGRATED CIRCUITS INC.--- AP4890B
5. ABSOLUTE MAXIMUN RATINGS :
ƒ Supply voltage, VDD -------------------------------------------------------------- 6V
ƒ Input voltage, VI --------------------------------------------------------- -0.3V to VDD +0.3V
ƒ Storage temperature rang, Tstg ------------------------------------------ -65 to 150
ƒ ESD Susceptibility ----------------------------------------------------------------- 2kV
ƒ Junction Temperature ------------------------------------------------------------ 150
6. ELECTRICAL CHARACTERISTICS VDD=5V, TA=25
Symbol
Parameter
Conditions
AP4890B
UNIT
MIN TYP MAX
IDD
Quiescent Power
Supply Current
VIN=0V, Io=0A, No load
VIN=0V, Io=0A, 8load
2.4 5 mA
2.5 5 mA
ISD Shutdown Current V SHUT DOWN=0V
0.1 2.0 µA
VSDIH
VSDIL
Shutdown Voltage
Input High
Shutdown Voltage
Input Low
1.2 V
0.4 V
VOS Output Offset Voltage
5 25 mV
ROUT-GND Resistor Output to GND
9 10 11 k
PO Output Power (8) THD=1%; f=1kHz
1.1
W
TWU
TSD
THD+N
PSRR
TSDT
Wake-up time
Thermal Shutdown
Temperature
Total Harmonic
Distortion + Noise
Power Supply
Rejection Ratio
Shutdown Time
170 220
150 170
PO=0.4 Wrms;
f=1kHz
0.15
Vripple=200mV sine p-p
Input Terminated with 10
ohms to ground
55
65(f=217Hz)
67(f=1kHz)
8load
1.0
ms
%
dB
ms
http://www.aplusinc.com.tw
Page 3 / 15
Tel : 886-2-2782-9266 Ver1.2



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