max9724c Maxim Integrated Products, Inc., max9724c Datasheet - Page 3

• Manufacturer Part Number: max9724c
• Description: Low Rf Susceptibility Directdrive Stereo Head- Phone Amplifier With 1.8v Compatible Shutdown
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
(R
are at T
ELECTRICAL CHARACTERISTICS
(V
(R
are at T
Note 3: All specifications are 100% tested at T
Note 4: The amplifier inputs are AC-coupled to GND.
Note 5: Gain for the MAX9724C is adjustable.
Note 6: Measurement bandwidth is 22Hz to 22kHz.
Note 7: Test performed with a 32Ω resistive load connected to GND. Mode transitions are controlled by SHDN. K
Slew Rate
Capacitive Drive
Crosstalk
Charge-Pump Oscillator
Frequency
Click-and-Pop Level
DIGITAL INPUTS (SHDN)
Input-Voltage High
Input-Voltage Low
Input Leakage Current
Quiescent Current
Shutdown Current
Power-Supply Rejection Ratio
(Note 4)
Output Power (TQFN)
Output Power (UCSP)
Total Harmonic Distortion Plus
Noise (TQFN) (Note 6)
Total Harmonic Distortion Plus
Noise (UCSP) (Note 6)
phone Amplifier with 1.8V Compatible Shutdown
DD
IN
DD
IN
Low RF Susceptibility DirectDrive Stereo Head-
= 20kΩ, R
= 20kΩ, R
= 5V, PGND = SGND, SHDN = 5V, C1 = C2 = 1µF, R
= 3V, PGND = SGND, SHDN = 3V, C1 = C2 = 1µF, R
A
A
as 20log[(peak voltage during mode transition, no input signal)/(peak voltage under normal operation at rated power level)].
Units are expressed in dB.
= +25°C, unless otherwise noted.) (Note 3)
= +25°C, unless otherwise noted.) (Note 3)
PARAMETER
PARAMETER
F
F
= 30kΩ); for MAX9724D gain = -1.5V/V (internally set), T
= 30kΩ); for MAX9724D gain = -1.5V/V (internally set), T
_______________________________________________________________________________________
SYMBOL
SYMBOL
THD+N
THD+N
I
PSRR
P
P
SHDN
f
V
I
V
K
OUT
OUT
OSC
CC
SR
C
INH
INL
CP
L
A
= +25°C; temperature limits are guaranteed by design.
No sustained oscillations
L to R, R to L, f = 10kHz, R
P
R
A-weighted, 32 samples per
second (Notes 4, 7)
SHDN = SGND = PGND
f = 1kHz, 100mV
f = 20kHz, 100mV
R
R
R
R
R
R
R
R
R
R
OUT
L
L
L
L
L
L
L
L
L
L
L
= 32Ω, peak voltage,
= 32Ω, THD+N = 1%
= 16Ω, THD+N = 1%
= 32Ω, THD+N = 1%
= 16Ω, THD+N = 1%
= 1kΩ, V
= 32Ω, P
= 16Ω, P
= 1kΩ, V
= 32Ω, P
= 16Ω, P
= 15mW
L
L
OUT
OUT
OUT
OUT
OUT
OUT
= ∞, resistive load reference to ground; for MAX9724C gain = -1.5V/V
= ∞, resistive load reference to ground; for MAX9724C gain = -1.5V/V
CONDITIONS
CONDITIONS
P-P
= 2V
= 15mW, f
= 10mW, f
= 2V
= 15mW, f
= 10mW, f
P-P
RMS
RMS
A
A
, f
, f
= -40°C to +85°C, unless otherwise noted. Typical values
= -40°C to +85°C, unless otherwise noted. Typical values
L
IN
IN
IN
IN
IN
IN
= 16Ω,
= 1kHz
= 1kHz
= 1kHz
= 1kHz
= 1kHz
= 1kHz
Into shutdown
Out of
shutdown
MIN
MIN
190
1.4
0.003
TYP
TYP
0.05
0.03
0.06
0.04
0.06
100
270
0.5
-70
-67
-64
3.0
0.1
80
65
20
14
17
12
CP
level is calculated
MAX
MAX
400
0.4
±1
UNITS
UNITS
V/µs
kHz
mW
mW
mA
dB
dB
dB
pF
µA
µA
%
%
V
V
3