Datasheet MAX9700 (Maxim) - 6

MAX9700 1.2W, Low-EMI, Filterless, Class D Audio Amplifier
Typical Operating Characteristics (continued)
(VDD = 3.3V, SYNC = GND (SSM), TA = +25°C, unless otherwise noted.)
GSM POWER-SUPPLY REJECTION OUTPUT FREQUENCY SPECTRUM
MAX9700 toc19 0 FFM MODE -20 VOUT = -60dBV f = 1kHz V 500mV/div DD MAX9700 toc20 -40 RL = 8Ω UNWEIGHTED -60 -80 -100 MAX9700 100mV/div OUTPUT MAGNITUDE (dBV) OUTPUT -120 -140 2ms/div 0 5k 10k 15k 20k f = 217Hz DUTY CYCLE = 88% INPUT LOW = 3V R FREQUENCY (Hz) L = 8Ω INPUT HIGH = 3.5V
WIDEBAND OUTPUT SPECTRUM OUTPUT FREQUENCY SPECTRUM OUTPUT FREQUENCY SPECTRUM (FFM MODE)
0 0 0 SSM MODE SSM MODE RBW = 10kHz -10 -20 VOUT = -60dBV -20 VOUT = -60dBV f = 1kHz MAX9700 toc21 f = 1kHz MAX9700 toc22 MAX9700 toc23 -20 -40 RL = 8Ω -40 RL = 8Ω UNWEIGHTED A-WEIGHTED -30 -60 -60 -40 -50 -80 -80 -60 -100 -100 -70 OUTPUT MAGNITUDE (dBV) OUTPUT MAGNITUDE (dBV) OUTPUT AMPLITUDE (dB) -80 -120 -120 -90 -140 -140 -100 0 5k 10k 15k 20k 0 5k 10k 15k 20k 1M 10M 100M 1G FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz)
WIDEBAND OUTPUT SPECTRUM (SSM MODE) TURN-ON/TURN-OFF RESPONSE
0 RBW = 10kHz -10 3V MAX9700 toc24 -20 MAX9700 toc25 SHDN -30 -40 -50 0V -60 -70 MAX9700 OUTPUT AMPLITUDE (dB) 250mV/div -80 OUTPUT -90 -100 1M 10M 100M 1G 10ms/div f = 1kHz FREQUENCY (Hz) RL = 8Ω www.maximintegrated.com Maxim Integrated │ 6