Headphone Driver. APA2178 Datasheet

APA2178 Driver. Datasheet pdf. Equivalent

Part APA2178
Description 100mW Stereo Cap-Free Headphone Driver
Feature APA2178 100mW Stereo Cap-Free Headphone Driver Features • No Output Capacitor Required • Operatin.
Manufacture ANPEC
Datasheet
Download APA2178 Datasheet




APA2178
APA2178
100mW Stereo Cap-Free Headphone Driver
Features
No Output Capacitor Required
Operating Voltage: 1.8V~4.5V
Supply Current
– I =5mA at V =3.3V
DD DD
Low Shutdown Current
– IDD=1µA at VDD=3.3V
Meeting VISTA Requirements
Output Power
at 1% THD+N
70mW,
at
V =3.3V,
DD
R
L
=
16
at 10% THD+N
– 100mW, at VDD=3.3V, RL = 16
Less External Components Required
High PSRR: 78dB at 217Hz
Short-Circuit and Thermal Protection
± 8KV ESD Performance
Surface-Mount Packaging
– WLCSP2x2-16
Lead Free and Green Devices Available
(RoHS Compliant)
Simplified Application Circuit
General Description
The APA2178 is a stereo, fixed gain, Cap-Free headphone
driver which is available in a WLCSP2x2-16 package.
The APA2178 is a ground-reference output, and doesn’t
need the output capacitors for DC blocking. The advan-
tages of eliminating the output capacitor are saving the
cost, PCB’s space, and component height.
The built-in gain setting can minimize the external com-
ponent counts and save the PCB space. High PSRR pro-
vides increased immunity to noise and RF rectification. In
addition to these features, a fast startup time and small
package size make the APA2178 an ideal choice for por-
table multimedia device.
Moreover, the APA2178 is also equipped other features.
For example, it is capable of driving 100mW at 3.3V into
16, at THD+N=10% and provides thermal and short cir-
cuit protection.
Applications
Handsets
PDAs
Portable multimedia devices
Notebooks
R-CH
Input
RIN
L-CH
Input
LIN
Shutdown
Control
RSD
LSD
APA2178
Stereo
Headphone
ROUT
LOUT
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.3 - Jul., 2009
1
www.anpec.com.tw



APA2178
APA2178
Ordering and Marking Information
APA2178
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
HA : WLCSP2x2-16
Operating Ambient Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APA2178 HA :
AP78
X
X - Date 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-020C 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).
Pin Configuration
CP+ PGND CP- CVSS
(A4) (B4) (C4) (D4)
PVDD
NC
NC VSS
(A3) (B3) (C3) (D3)
GND
(A2)
LSD
ROUT
LOUT
(B2) (C2) (D2)
RIN RSD LIN VDD
(A1) (B1) (C1) (D1)
PIN A1
X
Marking
Date
Code
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Jul., 2009
2
www.anpec.com.tw







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