MAX9789 MAXIM [Maxim Integrated Products], MAX9789 Datasheet - Page 5

• Manufacturer Part Number: MAX9789
• Description: Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
(MAX9789 only) = 0V, I
V
Windows Vista-Compliant, Stereo Class AB Speaker
Note 2: All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 3: Specified at room temperature with an 8Ω resistive load connected across BTL output for speaker amplifier. Specified at
Note 4: Amplifier inputs AC-coupled to GND.
Note 5: Maximum value is due to test limitations.
Note 6: V
LDO_SET Input Bias Current
(Note 5)
Dropout Voltage (Note 6)
Current Limit
Startup Time
Line Regulation
Load Regulation
Ripple Rejection
Output Voltage Noise
DIGITAL INPUTS (SPKR_EN, HP_EN, MUTE, GAIN1, GAIN2, LDO_EN (MAX9789 Only))
Input-Voltage High
Input-Voltage Low
Input Bias Current
GAIN2
DD
= PV
Amplifiers and DirectDrive Headphone Amplifiers
= 5V (A
room temperature with a 32Ω resistive load connected between HPR, HPL, and GND for headphone amplifier. Speaker and
headphone mode transitions are controlled by SPKR_EN and HP_EN control pins, respectively.
LDO_OUT
DD
PARAMETER
= CPV
VSP
= 10dB, A
= V
DD
_______________________________________________________________________________________
LDO_OUTNOMINAL
= HPV
LDO_OUT
VHP
DD
= 3.5dB), T
(MAX9789 only) = 0, C1 = C2 = C
= HP_EN = V
SYMBOL
V
I
V
V
I
SET
LIM
- 2%.
INH
DO
INL
A
= T
LDO_EN
V
output operation),
T
V
I
V
1mA < I
V
I
20Hz to 22kHz, C
I
MIN
LDO_OUT
LDO_OUT
LDO_OUT
A
OUT
IN
LDO_OUT
RIPPLE
= +25°C
= 4.5V to 5.5V, LDO_OUT = 2.5V,
to T
= 4.75V (fixed
(MAX9789 only) = +5V, V
LDO_OUT
= 200mV
MAX
= 1mA
= 10mA
= 120mA
= 4.75V,
, unless otherwise noted. Typical values are at T
CONDITIONS
< 120mA
P-P
LDO_OUT
BIAS
= 1µF. R
= 2 x 1µF,
I
I
f = 1kHz
f = 10kHz
OUT
OUT
GND
= 50mA
= 120mA
L
= ∞, unless otherwise specified, V
= V
PGND
= V
MIN
-4.8
2
CPGND
+0.8
TYP
±20
300
125
0.2
25
75
20
59
42
= SPKR_EN = V
A
= +25°C.) (Note 2)
±500
MAX
+4.8
150
0.8
±1
50
GAIN1
LDO_SET
mV/mA
UNITS
µV
mV/V
mV
mA
nA
dB
µA
µs
RMS
V
V
= 0,
5