MAX9701ETG+ Maxim Integrated Products, MAX9701ETG+ Datasheet - Page 11

• Manufacturer Part Number: MAX9701ETG+
• Description: IC AMP AUDIO PWR 2.2W D 24TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9701ETG+

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 2.2W x 2 @ 4 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Product: Class-D
• Output Power: 1.3 W
• Common Mode Rejection Ratio (min): 66 dB
• Thd Plus Noise: 0.1 %
• Supply Current: 6.3 mA
• Maximum Power Dissipation: 1666.7 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 8 Ohms
• Minimum Operating Temperature: - 40 C
• Amplifier Class: D
• No. Of Channels: 2
• Supply Voltage Range: 2.5V To 5.5V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. MAX9701 Outputs with an Input Signal Applied (SSM Mode)
The MAX9701 features two fixed-frequency modes.
Connect SYNC to GND to select a 1.1MHz switching fre-
quency. Leave SYNC unconnected to select a 1.4MHz
switching frequency. The frequency spectrum of the
MAX9701 consists of the fundamental switching frequen-
cy and its associated harmonics (see the Wideband
Output Spectrum (FFM Mode) graph in the Typical
Operating Characteristics ). Program the switching fre-
quency so the harmonics do not fall within a sensitive fre-
quency band (Table 1). Audio reproduction is not
affected by changing the switching frequency.
V
OUT_+
V
V
IN_+
IN_-
- V
OUT_-
OUT_+
OUT_-
______________________________________________________________________________________
t
ON(MIN)
Fixed-Frequency (FFM) Mode
1.3W, Filterless, Stereo Class D Audio
Operating Modes
t
SW
t
SW
Table 1. Operating Modes
Unconnected
Clocked
SYNC
t
GND
SW
V
DD
Power Amplifier
FFM with f
FFM with f
SSM with f
FFM with f
t
SW
OSC
OSC
OSC
OSC
= 1100kHz
= 1400kHz
= external clock frequency
= 1200kHz ±60kHz
MODE
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