Datasheet MAX9727 (Maxim) - 7
| Manufacturer | Maxim |
| Description | Quad Audio Line Driver with 3VRMS Output |
| Pages / Page | 13 / 7 — Quad Audio Line Driver with 3VRMS Output. MAX9727. Typical Operating … |
| File Format / Size | PDF / 526 Kb |
| Document Language | English |
Quad Audio Line Driver with 3VRMS Output. MAX9727. Typical Operating Characteristics (continued). OUTPUT NOISE SPECTRUM
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Quad Audio Line Driver with 3VRMS Output MAX9727 Typical Operating Characteristics (continued)
(VDD = PVDD = 3.3V, VCM = 0V, RIN = RF = 5kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
OUTPUT NOISE SPECTRUM OUTPUT NOISE DENSITY OUTPUT BACKDRIVEN DURING SHUTDOWN vs. FREQUENCY vs. FREQUENCY
-40 25 V V -50 DD = 5V DD = 3.3V VIN = 0V RL = 1kΩ -60 SIGNAL MAX9727 toc27 MAX9727 toc28 20 MAX9727 toc29 SOURCE -70 µV/ Hz) 2V/div -80 SHDN = 0V 15 EXTERNAL SIGNAL SOURCE -90 CONNECTED TO OUTPUT -100 R OUT_ SOURCE = 100Ω 10 AMPLITUDE (dBV) -110 2V/div -120 -130 5 VOLTAGE-NOISE DENSITY ( VSS 100mV/div -140 -150 0 0 5 10 15 20 0 5 10 15 20 1ms/div FREQUENCY (kHz) FREQUENCY (kHz)
Pin Description PIN NAME FUNCTION
1 OUTA Output A 2 INA- Inverting Input A 3 INA+ Noninverting Input A 4 VDD Analog Positive Supply. Bypass with a 0.1µF capacitor to PGND. 5 INB+ Noninverting Input B 6 INB- Inverting Input B 7 OUTB Output B 8 SHDN Active-Low Shutdown Input. Connect SHDN to VDD for normal operation. 9 PVDD Charge-Pump Positive Supply. Bypass with a 1µF capacitor to PGND. 10 C1P Charge-Pump Flying Capacitor Positive Terminal. Connect a 1µF capacitor between C1P and C1N. 11 PGND Power Ground 12 C1N Charge-Pump Flying Capacitor Negative Terminal. Connect a 1µF capacitor between C1P and C1N. 13 PVSS Charge-Pump Negative Supply. Bypass with a 1µF capacitor to PGND. 14 OUTC Output C 15 INC- Inverting Input C 16 INC+ Noninverting Input C 17 VSS Amplifier Negative Rail. Connect to PVSS. 18 IND+ Noninverting Input D 19 IND- Inverting Input D 20 OUTD Output D
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(VDD = PVDD = 3.3V, VCM = 0V, RIN = RF = 5kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
OUTPUT NOISE SPECTRUM OUTPUT NOISE DENSITY OUTPUT BACKDRIVEN DURING SHUTDOWN vs. FREQUENCY vs. FREQUENCY
-40 25 V V -50 DD = 5V DD = 3.3V VIN = 0V RL = 1kΩ -60 SIGNAL MAX9727 toc27 MAX9727 toc28 20 MAX9727 toc29 SOURCE -70 µV/ Hz) 2V/div -80 SHDN = 0V 15 EXTERNAL SIGNAL SOURCE -90 CONNECTED TO OUTPUT -100 R OUT_ SOURCE = 100Ω 10 AMPLITUDE (dBV) -110 2V/div -120 -130 5 VOLTAGE-NOISE DENSITY ( VSS 100mV/div -140 -150 0 0 5 10 15 20 0 5 10 15 20 1ms/div FREQUENCY (kHz) FREQUENCY (kHz)
Pin Description PIN NAME FUNCTION
1 OUTA Output A 2 INA- Inverting Input A 3 INA+ Noninverting Input A 4 VDD Analog Positive Supply. Bypass with a 0.1µF capacitor to PGND. 5 INB+ Noninverting Input B 6 INB- Inverting Input B 7 OUTB Output B 8 SHDN Active-Low Shutdown Input. Connect SHDN to VDD for normal operation. 9 PVDD Charge-Pump Positive Supply. Bypass with a 1µF capacitor to PGND. 10 C1P Charge-Pump Flying Capacitor Positive Terminal. Connect a 1µF capacitor between C1P and C1N. 11 PGND Power Ground 12 C1N Charge-Pump Flying Capacitor Negative Terminal. Connect a 1µF capacitor between C1P and C1N. 13 PVSS Charge-Pump Negative Supply. Bypass with a 1µF capacitor to PGND. 14 OUTC Output C 15 INC- Inverting Input C 16 INC+ Noninverting Input C 17 VSS Amplifier Negative Rail. Connect to PVSS. 18 IND+ Noninverting Input D 19 IND- Inverting Input D 20 OUTD Output D
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