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MAX9796EBX+TG45

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
= CPV
DD
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
DD
, I
2
C settings (INA gain = +20dB, INB gain = INC gain =
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
LSP
) are terminated between
OUT+ and OUT-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1µF. T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RECEIVER AMPLIFIER
Output Offset Voltage V
OS
T
A
= +25°C ±1.8 mV
Into shutdown -62
Into mute -67
Out of shutdown -63
Click-and-Pop Level K
CP
Peak voltage, T
A
=
+25°C, A-weighted,
32 samples per
second (Notes 3, 5)
Out of mute -66
dB
V
DD
= 2.7V to 5.5V 58 80
f = 217Hz, 100mV
P-P
ripple
80
f = 1kHz, 100mV
P-P
ripple
70
Power-Supply Rejection Ratio
(Note 3)
PSRR T
A
= +25°C
f = 20kHz, 100mV
P-P
ripple
62
dB
R
L
= 16Ω 60
Output Power P
OUT
T
A
= +25°C,
THD+N = 1%
R
L
= 32Ω 50
mW
Gain A
V
3dB
R
L
= 16Ω (V
OUT
= 800mV
RMS
, f = 1kHz) 0.03
Total Harmonic Distortion Plus
Noise
THD+N
R
L
= 32Ω (V
OUT
= 800mV
RMS
, f = 1kHz) 0.024
%
BW = 20Hz to 20kHz 87
Signal-to-Noise Ratio SNR
R
L
= 16Ω, V
OUT
=
800mV
RMS
(Note 3)
A-weighted 89
dB
Slew Rate SR 0.3 V/µs
Capacitive Drive C
L
300 pF
HEADPHONE AMPLIFIERS
Output Offset Voltage V
OS
T
A
= +25°C ±1.8 mV
Into shutdown -61
Into mute -65
Out of shutdown -60
Click-and-Pop Level K
CP
Peak voltage, T
A
=
+25°C, A-weighted,
32 samples per
second (Notes 2, 5)
Out of mute -64
dB
Contact ±4
ESD Protection HP_
Air ±8
kV
V
DD
= 2.7V to 5.5V 58 80
f = 217Hz, 100mV
P-P
ripple
80
f = 1kHz, 100mV
P-P
ripple
70
Power-Supply Rejection Ratio
(Note 3)
PSRR T
A
= +25°C
f = 20kHz, 100mV
P-P
ripple
62
dB
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
= CPV
DD
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
DD
, I
2
C settings (INA gain = +20dB, INB gain = INC gain =
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
LSP
) are terminated between
OUT+ and OUT-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1µF. T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
R
L
= 16Ω 60
Output Power P
OUT
T
A
= +25°C,
THD+N = 1%
R
L
= 32Ω 50
mW
Current Limit 170 mA
Gain A
V
+3 dB
Channel-to-Channel Gain
Tracking
T
A
= +25°C ±1 %
R
L
= 16Ω (V
OUT
= 800mV
RMS
, f = 1kHz) 0.03
Total Harmonic Distortion Plus
Noise
THD+N
R
L
= 32Ω (V
OUT
= 800mV
RMS
, f = 1kHz) 0.024
%
BW = 20Hz to 20kHz 92
Signal-to-Noise Ratio SNR
R
L
= 16Ω, V
OUT
=
800mV
RMS A-weighted 93
dB
Slew Rate SR 0.3 V/µs
Capacitive Drive C
L
300 pF
Crosstalk
L to R, R to L, f = 10kHz, R
L
= 16Ω,
V
OUT
= 160mV
RMS
75 dB
VOLUME CONTROL
HP gain (max) 3
SP gain (max) 12
HP gain (min) -72
IN+6dB = 0
(minimum gain
setting)
SP gain (min) -63
HP gain (max) 9
SP gain (max) 18
HP gain (min) -61
Volume Control
IN+6dB = 1
(maximum gain
setting)
SP gain (min) -57
dB
Mono + 6dB = 0 0
Mono Gain All outputs
Mono + 6dB = 1 6
dB
INA+20dB = 0 (minimum gain setting) Set by IN+6dB
Input Pair A Control
INA+20dB = 1 (maximum gain setting) 20
dB
Mute Attenuation (Minimum
Volume)
V
IN
= 1V
RMS
80 dB
DIGITAL INPUTS (SHDN, SDA, SCL)
Input-Voltage High V
IH
1.4 V
Input-Voltage Low V
IL
0.4 V
Input Hysteresis (SDA, SCL) V
HYS
200 mV
SDA, SCL Input Capacitance C
IN
10 pF
Input Leakage Current I
IN
1.0 µA
Pulse Width of Spike Suppressed t
SP
50 ns
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
= CPV
DD
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
DD
, I
2
C settings (INA gain = +20dB, INB gain = INC gain =
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
LSP
) are terminated between
OUT+ and OUT-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1µF. T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DIGITAL OUTPUTS (SDA Open Drain)
Output Low Voltage SDA V
OL
I
SINK
= 6mA 0.4 V
Output Fall Time SDA t
OF
V
H(MIN)
to V
L(MAX)
bus capacitance = 10pF
to 400pF, I
SINK
= 3mA
250 ns
I
2
C INTERFACE TIMING
Serial-Clock Frequency f
SCL
DC 400 kHz
Bus Free Time Between STOP
and START Conditions
t
BUF
1.3 µs
START Condition Hold t
HD:STA
0.6 µs
STOP Condition Setup Time t
SU:STA
0.6 µs
Clock Low Period t
LOW
1.3 µs
Clock High Period t
HIGH
0.6 µs
Data Setup Time t
SU:DAT
100 ns
Data Hold Time t
HD:DAT
0 900 ns
Maximum Receive SCL/SDA Rise
Time
t
R
300 ns
Maximum Receive SCL/SDA Fall
Time
t
F
300 ns
Setup Time for STOP Condition t
SU:STO
0.6 µs
Capacitive Load for Each Bus
Line
C
b
400 pF
Note 1: All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 2: Measured at headphone outputs.
Note 3: Amplifier inputs AC-coupled to GND.
Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
L
= 8Ω L = 68µH,
R
L
= 4Ω L = 47µH.
Note 5: Testing performed at room temperature with an 8Ω resistive load in series with 68µH inductive load connected across BTL
outputs for speaker amplifier. Testing performed with 32Ω resistive load connected between OUT_ and GND for headphone
amplifier. Testing performed with a 32Ω resistive load connected between OUTRx and GND for mono receiver amplifier.
Mode transitions are controlled by SHDN pin.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

MAX9796EBX+TG45

Mfr. #:
Buy MAX9796EBX+TG45
Manufacturer:
Maxim Integrated
Description:
IC AMP AUDIO 2.3W MONO D 36UCSP
Lifecycle:
New from this manufacturer.
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