MAX9729ETI+T Maxim Integrated Products, MAX9729ETI+T Datasheet - Page 5

• Manufacturer Part Number: MAX9729ETI+T
• Description: IC AMP AUDIO .052W STER 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9729ETI+T

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 52mW x 2 @ 32 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: Bass Boost, Depop, I²C, Input Multiplexer, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (2.4V Supply) (continued)
(V
setting = -16dB (overall gain = -10dB), BassMax disabled. Load connected between OUT_ and PGND where specified. THD+N
measurement BW = 22Hz to 22kHz. T
TIMING CHARACTERISTICS
(V
(overall gain = -10dB), BassMax disabled. Load connected between OUT_ and PGND where specified. T
wise noted. Typical values are at T
Note 1: All specifications are 100% tested at T
Note 2: V
Note 3: Inputs AC-coupled to SGND.
Note 4: Both channels loaded and driven in phase.
Note 5: Headphone testing performed with a 32Ω resistive load connected to PGND. Mode transitions are controlled by SHDN. K
Note 6: Guaranteed by design.
Signal-to-Noise Ratio
Click-and-Pop Level
Serial Clock Frequency
Bus Free Time Between a STOP and a
START Condition
Hold Time Repeated for a START
Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated START
Condition
Data Hold Time
Data Setup Time
Rise Time of Both SDA and SCL Signals
Fall Time of Both SDA and SCL Signals
Setup Time for STOP Condition
Pulse Width of Suppressed Spike
Capacitive Load for Each Bus Line
DD
DD
= PV
= PV
level is calculated as 20log[(peak voltage during mode transition, no input signal)/1V
DD
DD
DD
PARAMETER
Stereo Headphone Amplifier with BassMax,
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume setting = -16dB
= SHDN = 2.4V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume attenuation
and PV
PARAMETER
DD
_______________________________________________________________________________________
must be connected together.
A
= +25°C.) (Notes 1 and 6)
A
= T
SYMBOL
MIN
SNR
K
SYMBOL
t
t
t
t
C
t
CP
HD:STA
HD:DAT
SU:DAT
SU:STO
SU:STA
t
t
t
f
HIGH
L_BUS
LOW
BUF
SCL
t
to T
SP
A
Volume Control, and Input Mux
t
t
r
f
= +25°C. Temperature limits are guaranteed by design.
MAX
R
V
overall gain =
3.5dB
Peak voltage,
A-weighted,
32 samples per
second
(Notes 3 and 5)
OUT
L
, unless otherwise noted. Typical values are at T
= 32Ω,
= 1V
RMS
CONDITIONS
,
CONDITIONS
BW = 22Hz to 22kHz
BW = 22Hz to 22kHz
and A-weighted
Into shutdown
Out of shutdown
RMS
]. Units are expressed in dBV.
MIN
MIN
100
1.3
0.6
1.3
0.6
0.6
0.6
0
0
A
A
= T
= +25°C.) (Note 1)
TYP
TYP
101
MIN
98
79
79
50
to T
MAX
MAX
MAX
400
300
300
400
0.9
, unless other-
UNITS
UNITS
dBV
kHz
dB
pF
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
ns
CP
5