IS31AP4912-UTLS2-TR Datasheet, PDF (1/11 Pages) Integrated Silicon Solution, Inc – STEREO HEADPHONE DRIVER

IS31AP4912
STEREO HEADPHONE DRIVER
GENERAL DESCRIPTION
The IS31AP4912 is stereo headphone drivers
designed to allow the removal of the output
DC-blocking capacitors for reduced component count
and cost. The IS31AP4912 is ideal for small portable
electronics where size and cost are critical design
parameters.
The IS31AP4912 integrates click-and-pop suppression
circuitry and thermal protect circuit. The gain of the
amplifier is adjusted via external resistors.
IS31AP4912 is available in UTQFN-12 (2mm × 2mm)
packages. It operates from 2.7V to 5.5V over the
temperature range of -40°C to +85°C.
January 2016
FEATURES
 No output DC-blocking capacitors
 Supply voltage from 2.7V ~ 5.5V
 Low output noise (7µV)
 High SNR (103dB)
 -95dB PSRR
 Thermal protect circuit
 Integrated click-and-pop suppression circuitry
 UTQFN-12 (2mm × 2mm) package
APPLICATIONS
 Cellular handsets and PDAs
 Notebook PC
 MP3
 Portable gaming
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit
Note: The SGND and PGND pins of the IS31AP4912 must be routed separately back to the decoupling capacitor in order to provide proper
device operation. If the SGND and PGND pins are connected directly to each other, the part functions without risk of failure, but the noise and
THD performance do not meet the specifications.
Integrated Silicon Solution, Inc. – www.issi.com
1
Rev. C, 12/23/2015