# PA6203 Mono Audio Power Amplifier

## Description
️· Mono, fully-differential audio amplifier
️· 1.25W continuous average power to 8-Ω BTL load with <1% distortion @ 5V
️· Ideal for PDA/smartphone applications
️· Operates from 2.5V to 5.5V
️· Quiescent current: 1.7mA

## Features
️· Power Output: 1.25W into 8Ω @ 5V (Typ.)
️· Operating Voltage: 2.5V-5.5V
️· Low Supply Current: 1.7mA @ 5V (Typ.)
️· Shutdown Control: <10µA
️· Minimal External Components: Requires only five
️· High PSRR: 90dB for direct battery operation
️· Fully Differential Design: Reduces RF rectification and allows optional bypass capacitor
️· Improved CMRR: Eliminates two input coupling capacitors

## Applications
️· Wireless/Cellular Handsets
️· PDAs

## Ordering Information
️· PA6203L-SH2-T: Lead Free, HSOP-8, Tube
️· PA6203G-SH2-T: Halogen Free, HSOP-8, Tube
️· PA6203L-SH2-R: Lead Free, HSOP-8, Tape Reel
️· PA6203G-SH2-R: Halogen Free, HSOP-8, Tape Reel

## Pin Configuration
️· 1: Shutdown (Active Low)
️· 2: Bypass (Mid-supply voltage)
️· 3: IN+ (Positive Differential Input)
️· 4: IN- (Negative Differential Input)
️· 5: VO+ (Positive BTL Output)
️· 6: VDD (Supply Voltage)
️· 7: GND (Ground)
️· 8: VO- (Negative BTL Output)
️· Thermal Pad: Connect to ground.

## Absolute Maximum Ratings
️· Supply Voltage (VDD): -0.3 ~ 6V
️· Input Voltage (INx, SHUTDOWN): -0.3 ~ VDD + 0.3V
️· Operating Temperature: -40 ~ 85°C
️· Storage Temperature: -65 ~ 150°C

## Recommended Operating Conditions
️· VDD: 2.5 - 5.5V
️· Operating Temperature: -40 - 85°C
️· Load Impedance: 6.4 - 8 Ω

## Electrical Characteristics (TA=25°C, Gain=1V/V)
️· Output Offset Voltage: 9mV
️· PSRR: -90dB to -70dB
️· CMRR: -70dB to -55dB
️· Low-Level Output Voltage (VDD=5.5V): 0.30 - 0.46V
️· High-Level Output Voltage (VDD=5.5V): 4.8 - 5.12V
️· Supply Current: 1.7 - 2mA
️· Shutdown Current: 0.01 - 0.9µA

## Operating Characteristics (TA=25°C, Gain=1V/V, RL=8Ω)
️· Output Power (VDD=5V): 1.25W
️· THD+N: 0.06%
️· SNR: 104dB
️· Input Impedance: 2MΩ