Texas Instruments LM49150TLEVAL
The LM49150 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. The LM49150 combines a 1.25W mono E2S (Enhanced Emission Suppression) class D amplifier, 135mW Class AB earpiece amplifier, 42mW/channel stereo ground reference headphone amplifiers, volume control, and mixing circuitry into a single device. The filterless class D amplifier delivers 1.25W into an 8Ω load with| Part No. | LM49150TLEVAL |
|---|---|
| Datasheet | LM49150TLEVAL Download |
| Manufacturer |  Texas Instruments |
| Description | Mono Class D Audio Subsystem |
| Buy | Stock & Price |
FEATURES
1●23 E2S Class D Amplifier
● Ground Referenced Headphone Outputs — Eliminates Output Coupling Capacitors
● I2C Volume and Mode Control
● Mono Earpiece Amplifier
● Flexible Output for Speaker and Headphone Output
● 20–Bump DSBGA Package
● Soft Enable Function
● “Click and Pop” Suppression Circuitry
● Thermal Shutdown Protection
● Low Supply Current
● Micro-Power Shutdown KEY SPECIFICATIONS
● Output power at VDD = 5V: – Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.25W (typ) – Headphone: RL = 32Ω SE, THD+N ≤ 1%: 42mW (typ) – Earpiece: RL = 8Ω SE, THD+N ≤ 1%: 135mW (typ)
● Output power at VDD = 3.3V: – Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 520mW (typ) – Headphone: RL = 32Ω BTL, THD+N ≤ 1%: 42mW (typ) – Earpiece: RL = 8Ω SE, THD+N ≤ 1%: 35mW (typ)
● Output Offset – LS Mode: 9mV (typ) – HP Mode: 1mV (typ) – Earpiece: 1mV (typ)
● Single Supply Operation (VDD): 2.7 to 5.5V
● I2C Single Supply Operation: 1.7 to 5.5V
APPLICATIONS
● Mobile Phones● PDAs
● Portable Electronics
DESCRIPTION
Part of TI'...
