|Description||100MW Stereo Headphone Amplifier|
|Company||ST Microelectronics, Inc.|
|Datasheet||Download TS482IDT datasheet
s Operating from s 100mW into s 38mW into s 11.5mW into 2V s Switch ON/OFF click reduction circuitry s High Power Supply Rejection Ratio: 85dB at
s High Signal-to-Noise ratio: 5V s High Crosstalk immunity: (F=1kHz) s Rail to Rail input and output s Unity-Gain Stable s Available & SO8
DESCRIPTION The is a dual audio power amplifier able to drive or 32 stereo headset down to low voltages. It's delivering to 100mW per channel (into 16 loads) of continuous average power with 0.1% THD+N from a 5V power supply. The unity gain stable TS482 can be configured by external gain-setting resistors.
S = MiniSO Package (MiniSO) - only available in Tape & Reel (ST) D = Small Outline Package (SO) - also available in Tape & Reel (DT)
APPLICATIONS s Stereo Headphone Amplifier s Optical Storage s Computer Motherboard s PDA, organizers & Notebook computers s High end TV, Set Top Box, DVD Players s Sound Cards
Symbol VCC Vi Toper Tstg Tj R thja Supply voltage 1) Input Voltage Operating Free Air Temperature Range Storage Temperature Maximum Junction Temperature Thermal Resistance Junction to Ambient SO8 miniSO8 Parameter Value -65 to see note mA °C Unit V °C °C/W
Power Dissipation SO8 miniSO8 ESD Human Body Model (pin to pin) ESD Machine Model - 240pF (pin to pin) Latch-up Immunity (All pins) Lead Temperature (soldering, 10sec) Pd Output Short-Circuit Duration
1. All voltages values are measured with respect to the ground pin. 2. Pd has been calculated with Tamb = 25°C, Tjunction 150°C. 3. Short-circuits can cause excessive heating. Destructive dissipation can result from short-circuit on one or two amplifiers simultaneously
Symbol VCC RL CL VICM RTHJA Supply Voltage Load Resistor Load Capacitor > 100 Common Mode Input Voltage Range Thermal Resistance Junction to Ambient SO8 miniSO8 Parameter Value 2 to GND to VCC 150 190 Unit pF V °C/W
Functiona l Description Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also forms a high pass filter with Cin (fc Pi x Rin x Cin)) Input coupling capacitor which blocks the DC voltage at the amplifier input terminal Feed back resistor which sets the closed loop gain in conjunction with Rin Supply Bypass capacitor which provides power supply filtering Bypass capacitor which provides half supply filtering Output coupling capacitor which blocks the DC voltage at the load input terminal This capacitor also forms a high pass filter with RL (fc RL x Cout)) These 2 resistors form a voltage divider which provide a DC biasing voltage (Vcc/2) for the 2 amplifiers. Closed loop gain = -Rfeed / RinELECTRICAL CHARACTERISTICS VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol ICC VIO IIB Parameter Supply Current No input signal, no load Input Offset Voltage (VICM = VCC/2) Input Bias Current (VICM = VCC/2) Output Power THD+N Max, RL 1% Max, = 0.1% Max, RL 1% Max, R L Min. Typ. 1 200 Max. 3 500 Unit mV nA
Total Harmonic Distortion + Noise = 32, Pout = 16, Pout F 20kHz Power Supply Rejection Ratio 100Hz , Vripple = 100mVpp Max Output Current THD = 16 connected between out and VCC/2 Output Swing VOL = 32 VOH 32 VOL = 16 VOH 16 Signal-to-Noise Ratio (Filter Type A, Av=-1) (RL = 32, THD F 20kHz) Channel Separation, to 20kHz Channel Separation, to 20kHz Input Capacitance Gain Bandwidth Product (RL = 32) Slew Rate, Unity Gain Inverting (RL
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