APA2121 Datasheet | Anpec Electronics Coropration

Features - Low Operating Current with 14m A - Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs - High PSRR - 32 Steps Volume Adjustable by DC Voltage with Hysteresis - 2W Per Channel Output Power into 4Ω Load at 5V, BTL Mode - Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin - Low Current Consumption in Shutdown Mode (50µA) - Short Circuit Protection - Power off Depop Circuit Integration - TSSOP-24P with or without Thermal Pad Package - Lead Free and Green Devices Available (Ro HS pliant) Applications - Note Book PC - LCD Monitor or TV General Description APA2120/1 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers is capable of producing 2.7W(2. 0W) into 3Ω with less than 10% (1.0%)THD+N. The attenuator range of the volume control in APA2120/1 is from 20d B (DC_Vol=0V) to -80d B (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less ponents and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2120/1 and reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2120/ 1 bines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. Besides, the multiple input selection is used for portable audio system. Ordering and Marking Information APA2120/1 Assembly Material Handling Code Temperature Range Package Code Package Code R : TSSOP-24P Operating Ambient Temperature Range I : - 40 to 85 o C Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device APA2120/1 R : APA2120/1 XXXXX XXXXX - Date Code Note: ANPEC...