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ANPEC

APA2181 Datasheet Preview

APA2181 Datasheet

Stereo Cap-Free Headphone Driver

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APA2181
Low Supply Current, 50mW Stereo Cap-Free Headphone Driver
Features
General Description
Operating Voltage: 2.3V~5.5V
Supply Current
- I =1mA at V =3.6V
DD
DD
Low Shutdown Current
- IDD=5µA at VDD=3.6V
Ground Reference Output
- No Output Capacitor Required (for DC Blocking)
- Save the PCB Space
- Reduce the BOM Costs
- Improve the Low Frequency Response
Output
Power
50mW/Ch
into
16
at
V =3.6V
DD
High PSRR: 80dB at 217Hz
Fast Start-Up Time: 4ms
Integrate the De-pop Circuitry
Thermal Protection
Integrated LDO (Low Dropout Regulator) for
Microphone Detection Circuit (1.9V)
Surface-Mount Packaging
WLCSP1.6x1.6-12
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
The APA2181 is a stereo, fixed gain, single supply, and
cap-free headphone driver, which is available in a
WLCSP1.6x1.6-12 package.
The APA2181 is ground-reference output, and no need
the output capacitors for DC blocking. The advantages of
eliminating the output capacitor are saving the cost, elimi-
nating component height, and improving the low frequency
response.
The internal fixed gain setting (-1.5V/V) can minimize the
external component counts and save the PCB space. High
PSRR provides increased immunity to noise and RF
rectification. LDO is the best solution for microphone
detection circuit requirement, and it can lower the total
BOM costs.
The APA2181 is capable of driving 50mW at 3.6V into16
load, and provides thermal protection.
Simplified Application Circuit
Stereo
RIN
Input
Signal
LIN
Shutdown SDN
Control
APA2181
Stereo
Headphone
ROUT
LOUT
LOUT To Microphone
Detection Circuit
Handsets
PDAs
Portable Multimedia Devices
Notebooks
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.
1
Rev. A.2 - Apr., 2010
www.anpec.com.tw




ANPEC

APA2181 Datasheet Preview

APA2181 Datasheet

Stereo Cap-Free Headphone Driver

No Preview Available !

APA2181
Pin Configuration
LOUT ROUT LIN
RIN
(C1)
(C2)
(C3)
(C4)
VSS
(B1)
SDN
(B2)
GND
(B3)
VDD
(B4)
VOUT
(A1)
CPN
(A2)
PGND
(A3)
CPP
(A4)
A81
V X Date
Code
PIN A1
Marking
WLCSP1.6x1.6-12
(Top View)
Voltage Code
Ordering and Marking Information
APA2181
Assembly Material
Handling Code
Temperature Range
Package Code
Voltage Code
Voltage Code
D : 1.9V M : 2.8V
Package Code
HA : WLCSP1.6x1.6-12
Temperature Range
I : - 40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APA2181 HA:
A81
VX
X - Date Code ; V - Voltage Code
Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Absolute Maximum Ratings (Note 1)
Symbol
VPGND_GND
VDD
VSDN
VSS
VOUT
VCPP
VCPN
TJ
TSTG
Parameter
PGND to GND Voltage
Supply Voltage (VDD to GND and PGND)
Input Voltage (SDN to GND)
VSS to GND and PGND Voltage
ROUT and LOUT to GND Voltage
CPP to PGND Voltage
CPN to PGND Voltage
Maximum Junction Temperature
Storage Temperature Range
Rating
-0.3 to 0.3
-0.3 to 5.5
GND-0.3 to VDD+0.3
-5.5 to 0.3
VSS-0.3 to VDD+0.3
PGND-0.3 to VDD+0.3
PVSS-0.3 to PGND+0.3
150
-65 to +150
Unit
V
oC
Copyright © ANPEC Electronics Corp.
2
Rev. A.2 - Apr., 2010
www.anpec.com.tw



Part Number APA2181
Description Stereo Cap-Free Headphone Driver
Maker ANPEC
Total Page 3 Pages
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