
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = 5.0V, GND = PGND = 0V, VSHDN = 5V, CBIAS = 1µF, RIN = RF = 15kΩ, RL = ∞. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
| PARAMETER | SYMBOL | CONDITIONS | MIN | TYP | MAX | UNITS | ||
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| OUTPUT AMPLIFIERS (HEADPHONE MODE, HPS = VDD) | 
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| 
 | VDD = 4.5V to 5.5V | 
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 | 75 | 106 | 
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| PSRR | f = 1kHz, VRIPPLE =  | 
 | 88 | 
 | dB | |||
| (Note 2) | 
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| 
 | f = 20kHz, VRIPPLE =  | 
 | 76 | 
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| Output Power | POUT | fIN = 1kHz, THD+N < | RL = 32Ω | 
 | 88 | 
 | mW | |
| 1%, TA = +25°C | RL = 16Ω | 
 | 200 | 
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 | POUT = 60mW, | 
 | 0.002 | 
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| Total Harmonic Distortion Plus | 
 | fIN = 1kHz, | RL = 32Ω | 
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| THD+N | 
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 | % | ||||
| Noise | BW = 22Hz to 22kHz | POUT = 125mW, | 
 | 0.002 | 
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 | RL = 16Ω | 
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| SNR | RL = 32Ω, BW = 22Hz to 22kHz, | 
 | 92 | 
 | dB | |||
| VOUT = 1VRMS | 
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| Slew Rate | SR | 
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 | 1.8 | 
 | V/µs | 
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| Maximum Capacitive Load Drive | CL | No sustained oscillations | 
 | 2 | 
 | nF | ||
| Crosstalk | 
 | fIN = 10kHz | 
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 | 78 | 
 | dB | 
| BIAS VOLTAGE (BIAS) | 
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| BIAS Voltage | VBIAS | 
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 | 2.35 | 2.5 | 2.65 | V | 
| Output Resistance | RBIAS | 
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 | 50 | 
 | kΩ | 
| DIGITAL INPUTS (MUTE, SHDN, HPS_EN, GAINA/B, IN1/2) | 
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| VIH | 
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 | 2 | 
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 | V | |
| VIL | 
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 | 0.8 | V | |
| Input Leakage Current | IIN | 
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 | ±1 | µA | 
| HEADPHONE SENSE INPUT (HPS) | 
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| VIH | 
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 | 0.9 x | 
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 | V | |
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 | VDD | 
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| VIL | 
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 | 0.7 x | V | |
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 | VDD | |||
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| Input Leakage Current | IIN | 
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 | ±1 | µA | 
| Click/Pop Level | KCP | Peak voltage,  | Into shutdown | 
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 | dBV | ||
| 32 samples per second | 
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| Out of shutdown | 
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 | (Notes 2, 4) | 
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MAX9777/MAX9778
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