MAX9756ETX+T Maxim Integrated Products, MAX9756ETX+T Datasheet - Page 4

• Manufacturer Part Number: MAX9756ETX+T
• Description: IC AMP AUDIO PWR 2.3W AB 36TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9756ETX+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.3W x 2 @ 3 Ohm; 130mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
ELECTRICAL CHARACTERISTICS (continued)
(V
= 1µF, C
terminated between HP_ and GND, GAIN1 = GAIN2 = GAIN3 = VOL = 0 (A
otherwise noted. Typical values are at T
4
CHARGE PUMP
Charge-Pump Frequency
VOLUME CONTROL
VOL Input Impedance
VOL Input Hysteresis
Full Mute Voltage
Full Mute Attenuation
Input Impedance
Channel Matching
BEEP INPUT
Beep Signal Amplitude Threshold
Beep Signal Frequency
Threshold
AUTOMATIC LEVEL CONTROL SPEAKER AMPLIFIER (MAX9756/MAX9757)
PREF Threshold Accuracy
Maximum Gain Compression
Attack Time
Hold Time
Release Time (Note 9)
DR INPUT (TRI-STATE INPUT)
DR Input Voltage High
DR Input Voltage Middle
DR Input Voltage Low
Input Leakage Current
LOGIC INPUTS (GAIN_, SHDN, REGEN)
Input High Voltage
Input Low Voltage
Input Leakage Current
DD
_______________________________________________________________________________________
= PV
PVSS
DD
PARAMETER
= HPV
= 1µF, C1 = C2 = 1µF, PREF = unconnected, speaker loads terminated between OUT_+ and OUT_-, headphone load
DD
= CPV
DD
= IN = +5.0V, GND = PGND = CPGND = 0, SHDN = V
SYMBOL
R
V
A
R
V
V
f
OSC
VOL_
V
DRM
V
DRH
DRL
I
VOL
= +25°C.) (Note 1)
IN
IH
IL
(Note 7)
f
Any gain setting
A
A
A
T
section)
T
R
C
Time between attack and release phases
C
release from
6dB
0V ≤ V
IN
A
A
V
V
V
PREF
T
T
= 1kHz
= +25°C, R
= +25°C
= +15dB to 0dB
= -2dB to -20dB
= -22dB to -56dB
= 1µF (Note 8)
= 1µF,
DR
= 180kΩ
≤ V
DD
B
CONDITIONS
= 47kΩ (see BEEP Input
0V < V
0.4V < V
0.8V < V
DR
V(SP)
DR
DR
< (0.3V x V
< (0.6V x V
< V
= 15dB, A
DD
DD
DD
DD
)
V(HP)
, REGEN = V
)
= 0dB), T
0.8 x
0.4 x
MIN
V
V
500
300
0.3
6.0
DD
DD
0
2
DD
0.858 x
HPV
A
±0.2
±0.3
±1.0
TYP
, DR = SET = GND, C
550
100
100
-85
6.3
9.5
10
15
50
30
= -40°C to +85°C, unless
5
3
DD
MAX
0.6 x
0.3 x
V
V
V
600
8.1
0.8
±1
±1
DD
DD
DD
UNITS
kHz
MΩ
MΩ
mV
ms
ms
dB
dB
Hz
dB
µA
µA
%
V
V
V
V
V
V
V
s
BIAS