Specification	MAX9709ETN+D

Features	Shutdown, Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection
Max Output Power x Channels @ Load	29 W, 50 W
Mounting Type	Surface Mount
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Type	1-Channel (Mono), 2-Channel (Stereo)
Package / Case	56-WFQFN Exposed Pad
Supplier Device Package	56-TQFN (8x8)
Type	Class D
Voltage - Supply [Max]	22 V
Voltage - Supply [Min]	10 VDC

MAX9709 Series

Part	Supplier Device Package	Type	Max Output Power x Channels @ Load	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Type	Features
Analog Devices Inc./Maxim Integrated MAX9709ETN+D	56-TQFN (8x8)	Class D	29 W 50 W	56-WFQFN Exposed Pad	10 VDC	22 V	85 C	-40 ¯C	Surface Mount	1-Channel (Mono) 2-Channel (Stereo)	Depop Differential Inputs Mute Short-Circuit and Thermal Protection Shutdown
Analog Devices Inc./Maxim Integrated MAX9709ETN+TD	56-TQFN (8x8)	Class D	29 W 50 W	56-WFQFN Exposed Pad	10 VDC	22 V	85 C	-40 ¯C	Surface Mount	1-Channel (Mono) 2-Channel (Stereo)	Depop Differential Inputs Mute Short-Circuit and Thermal Protection Shutdown

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 21.05
		10	$ 15.35
		25	$ 13.89
		100	$ 12.26
		250	$ 11.47
		500	$ 11.16

Description

General part information

MAX9709 Series

The MAX9709 stereo/mono, Class D audio power amplifier delivers up to 2 x 25W into an 8Ω stereo mode and 1 x 50W into a 4Ω load in mono mode while offering up to 87% efficiency. The MAX9709 provides Class AB amplifier performance with the benefits of Class D efficiency, eliminating the need for a bulky heatsink and conserving power. The MAX9709 operates from a single +10V to +22V supply, driving the load in a BTL configuration.The MAX9709 offers two modulation schemes: a fixed-frequency modulation (FFM) mode, and a spread-spectrum modulation (SSM) mode that reduces EMI-radiated emissions. The MAX9709 can be synchronized to an external clock from 600kHz to 1.2MHz. A synchronized output allows multiple units to be cascaded in the system.Features include fully differential inputs, comprehensive click-and-pop suppression, and four selectable-gain settings (22dB, 25dB, 29.5dB, and 36dB). A pin-programmable thermal flag provides seven different thermal warning thresholds. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition.The MAX9709 is available in a 56-pin TQFN (8mm x 8mm x 0.8mm) package, and is specified over the extended -40°C to +85°C temperature range.ApplicationsLCD TVsPC/HiFi Audio SolutionsPDP TVs