DESCRIPTION
The TS419/TS421 is a monaural audio power amplifier driving in BTL mode a 16 or 32⦠earpiece or receiver speaker. The main advantage of this configuration is to get rid of bulky output capacitors.
â OPERATING FROM Vcc=2V to 5.5V
â STANDBY MODE ACTIVE HIGH (TS419) or
LOW (TS421)
â OUTPUT POWER into 16â¦: 367mW @ 5V
with 10% THD+N max or 295mW @5V and
110mW @3.3V with 1% THD+N max.
â LOW CURRENT CONSUMPTION: 2.5mA max
â High Signal-to-Noise ratio: 95dB(A) at 5V
â PSRR: 56dB typ. at 1kHz, 46dB at 217Hz
â SHORT CIRCUIT LIMITATION
â ON/OFF click reduction circuitry
â Available in SO8, MiniSO8 & DFN 3x3
APPLICATIONS
â 16/32 ohms earpiece or receiver speaker driver
â Mobile and cordless phones (analog / digital)
â PDAs & computers
â Portable appliances
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