max9789a Maxim Integrated Products, Inc., max9789a Datasheet - Page 4

• Manufacturer Part Number: max9789a
• Description: Windows Vista-compliant, Stereo Class Ab Speaker Amplifiers And Directdrive Headphone Amplifiers Integrated Products
• Manufacturer: Maxim Integrated Products, Inc.

Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
I
A
4
LDO_OUT
Power-Supply Rejection Ratio
(Note 5)
Voltage Gain
Input Impedance
Output Offset Voltage
Click-and-Pop Level
Dynamic Range
Signal-to-Noise Ratio
Noise
Capacitive-Load Drive
Crosstalk
Slew Rate
ESD
Charge-Pump Frequency
LOW-DROPOUT LINEAR REGULATOR
Regulator Input Voltage Range
Ground Current
Output Current
Crosstalk
Fixed Output Voltage Accuracy
Adjustable Output Voltage Range
LDO_SET Reference Voltage
LDO_SET Dual-Mode Threshold
LDO_SET Input Bias Current
(Note 4)
Dropout Voltage (Note 5)
VHP
DD
_______________________________________________________________________________________
= PV
= 3.5dB), T
(MAX9789A only) = 0, C1 = C2 = C
DD
PARAMETER
= CPV
A
= T
DD
MIN
= HPV
to T
MAX
DD
= LDO_EN (MAX9789A only) = +5V, GND = PGND = CPGND = LDO_SET (MAX9789A only) = 0V,
, unless otherwise noted. Typical values are at T
SYMBOL
PSRR
I
SNR
f
V
ESD
V
I
V
V
K
I
GND
R
OSC
OUT
DR
A
C
SR
SET
V
SET
DD
DO
OS
CP
IN
V
n
L
BIAS
V
HPV
f = 1kHz, V
f = 10kHz, V
Measured at headphone amplifier inputs
T
R
A-weighted, 32 samples
per second (Notes 2, 3)
R
FS = 0.300V
R
FS = 0.707V
R
P
BW = 22Hz to 22kHz
No sustained oscillations
L to R, R to L,
20kHz AES17
BW = 20Hz to 20kHz R
Human Body Model (HPR, HPL)
Inferred from line regulation
I
I
I
V
output operation),
T
OUT
OUT
OUT
OUT
= 1µF. R
A
A
OUT
OUT
L
L
L
L
= +25°C
= 32Ω, peak voltage,
= 32Ω, f = 1kHz, A-weighted,
= 10kΩ, f = 1kHz, A-weighted,
= 32Ω,
= +25°C
DD
= 0mA
= 120mA
= 1mA
= 4.75V, f = 1kHz, speaker P
= 60mW
= 4.75V (fixed
= 3V to 5.5V, T
L
RIPPLE
= , unless otherwise specified, GAIN1 = 0, GAIN2 = 5V (A
RIPPLE
RMS
RMS
CONDITIONS
, V
, V
= 200mV
OUT
OUT
= 200mV
A
22Hz to 22kHz
A-weighted
R
FS = 0.300V
V
FS = 0.707V
V
= 300µV
= 707µV
= +25°C
L
OUT
L
OUT
Into shutdown
Out of shutdown
= 32Ω,
= 10kΩ,
P-P
I
I
P-P
OUT
OUT
= 30mV
= 70.7mV
(Note 3)
(Note 3)
RMS
RMS
A
= 50mA
= 120mA
OUT
= +25°C.) (Note 1)
RMS
RMS
RMS
RMS
= 2W
,
,
MIN
1.21
1.19
500
4.5
70
20
TYP
1.21
±20
100
103
200
550
200
-60
-60
-74
-77
-40
-88
3.5
0.4
0.1
±2
±8
95
84
63
40
89
97
12
25
75
±500
MAX
±1.5
0.16
4.75
1.23
600
120
150
5.5
±7
80
50
VSP
= 10dB,
UNITS
µV
dB FS
V/µs
dBV
kHz
mV
mA
mA
mV
mV
dB
dB
kΩ
dB
dB
dB
pF
kV
nA
%
RMS
V
V
V