Ordering number : EN4799B
CMOS IC
LC7538JM
Electronic Volume Control System for Car Audio
Overview
The LC7538JM is a f...
Ordering number : EN4799B
CMOS IC
LC7538JM
Electronic Volume Control System for Car Audio
Overview
The LC7538JM is a fully equipped electronic volume IC which permits significant reductions in externally connected components while providing ample volume, balance, loudness, fader, bass and treble control functions.
On-chip op amplifier for caching applications reduces external components.
Reduced switching noise with silicon gate
CMOS processor.
All controls performed using serial data input (CCB).
Features
Volume
: 81 positions ranging from 0 dB to -79 dB (in 1 dB increments) plus -∞. Separate left and right control provides
excellent balance function.
Loudness
: Loudness operation provided by externally attached CR to activate tap at the -20 dB position of the volume ladder resistor.
Fader
: Fader function traversing 16 positions with rear or front attenuated output only (these 16 positions consist of 2 dB step intervals ranging from 0 dB to -20 dB, 5 dB step intervals ranging from -20 dB to -45 dB, plus the end settings of -60 dB and -∞).
Bass and Treble: Using externally attached C (capacitor), the LC7538JM provides bass-treble mutual 15-position control and formats a NF-form tone control circuit (LUX form).
Package Dimensions
unit : mm 3204-MFP36S
[LC7538JM]
SANYO: MFP36S
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Maximum supply
voltage
Maximum input
voltage
Allowable power dissipation Operating temperature Stor...