2x1.2w Stereo Audio Power Amplifier
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TS4985
2 X 1.2W Stereo Audio Power Amplifier with Dedicated Standby Pins
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Operating f...
Description
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TS4985
2 X 1.2W Stereo Audio Power Amplifier with Dedicated Standby Pins
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Operating from VCC=2.2V to 5.5V 1.2W output power per channel @ VCC=5V, THD+N=1%, RL=8Ω 10nA standby current 62dB PSRR @ 217Hz with grounded inputs High SNR: 106dB(A) typ. Near zero pop & click Lead-free 15 bumps, flip-chip package
Flip-chip - 15 bumps
Pin Connection (top view)
VCC2
IN+R
Description
The TS4985 has been designed for top-class stereo audio applications. Thanks to its compact and power-dissipation efficient flip-chip package, it suits various applications. With a BTL configuration, this audio power amplifier is capable of delivering 1.2W per channel of continuous RMS output power into an 8Ω load @ 5V. Each output channel (left and right), has an external controlled standby mode pin (STDBYL & STDBYR) to reduce the supply current to less than 10nA per channel. The device also features an internal thermal shutdown protection. The gain of each channel can be configured by external gain setting resistors.
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VCC1
STDBYL
IN-R
VO+L VO-L BYPASS
VO+R VO-R
IN+L
GND2
IN-L
STDBYR
GND1
Applications
Cellular mobile phones Notebook & PDA computers LCD monitors & TVs Portable audio devices
Order Codes
Part Number TS4985EIJT TS4985EKIJT -40, +85°C Temperature Range Package Lead free flip-chip Lead free flip-chip + back coating Packaging Tape & Reel Marking A85
May 2005
Rev 2 1/29
www.st.com
29
Typical Application Schematic
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