MAX9766ETJ+T Maxim Integrated Products, MAX9766ETJ+T Datasheet - Page 15

• Manufacturer Part Number: MAX9766ETJ+T
• Description: IC AMP AUDIO .75W MONO AB 32TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class ABr

Specifications of MAX9766ETJ+T

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 750mW x 1 @ 4 Ohm; 65mW x 2 @ 16 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Depop, I²C, Input Multiplexer, Microphone, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M A X9 7 6 5
2, 7, 18
26, 29
4, 21
5, 20
10
11
12
13
14
15
16
17
19
22
23
24
25
27
28
30
31
32
—
1
3
6
8
9
750mW Audio Amplifiers with Headphone Amp,
M A X9 7 6 6
2, 7, 18
26, 29
4, 21
5, 20
PIN
10
11
12
13
14
15
17
22
24
25
27
28
30
31
32
16
—
—
—
1
3
6
8
9
______________________________________________________________________________________
24, 27, 32
M A X9 7 6 7
2, 7, 8,
18, 23,
4, 21
5, 20
10
11
12
13
14
15
22
19
29
31
16
—
—
—
—
—
—
—
—
—
—
—
1
6
3
Microphone Preamp, and Input Mux
MICOUT+
MICBIAS
MICOUT
MICIN+
OUTL+
OUTR+
MICIN-
AUXIN
GAINR
OUTR-
GAINL
NAME
OUTL-
SHDN
PGND
PV
SV
GND
INR2
INR1
BIAS
INL2
INL1
ADD
N.C.
SDA
SCL
HPS
V
DD
DD
DD
Active-Low Shutdown. Connect SHDN to V
No Connection. Not internally connected.
Left-Channel Bridged Amplifier Positive Output. OUTL+ also serves as the
left-channel headphone amplifier output.
Output Amplifier Power Supply. Connect PV
Power Ground. Connect PGND to GND.
Left-Channel Bridged Amplifier Negative Output
Left-Channel Input 2
Left-Channel Input 1
Differential Microphone Amplifier Noninverting Input
Differential Microphone Amplifier Inverting Input
Single-Ended Microphone Amplifier Input
Power Supply
Standby Power Supply. Connect to a standby power supply that is always on,
or connect to V
capacitor to GND. Short to V
Microphone Bias Output. Bypass MICBIAS with a 1µF capacitor to GND.
Microphone Amplifier Output
Right-Channel Gain Set
Right-Channel Bridged Amplifier Negative Output
Right-Channel Bridged Amplifier Positive Output. OUTR+ also serves as the
right-channel headphone amplifier output.
Address Select. A logic high sets the address LSB to 1, a logic low sets the
address LSB to 0.
Bidirectional Serial Data I/O
Serial Clock Line
Ground
Right-Channel Input 2
Right-Channel Input 1
Headphone Sense Input
DC Bias Bypass. See BIAS Capacitor section for capacitor selection.
Connect C
Left-Channel Gain Set
Microphone Amplifier Positive Output
BIAS
DD
capacitor from BIAS to GND.
through a Schottky diode and bypass with a 220µF
DD
if clickless operation is not essential.
FUNCTION
DD
DD
for normal operation.
to V
Pin Description
DD
.
15