max97236 Maxim Integrated Products, Inc., max97236 Datasheet - Page 4

• Manufacturer Part Number: max97236
• Description: Audio Amplifier With Jack Detection
• Manufacturer: Maxim Integrated Products, Inc.

Audio Amplifier with Jack Detection
4
ELECTRICAL CHARACTERISTICS (continued)
(V
otherwise noted. See the
Maximum Capacitive Load Drive
Power Consumption
Charge-Pump Switch Threshold
Click-and-Pop Level
Input Capacitance
Input Impedance
AUDIO AMPLIFIER VOLUME CONTROL
Gain Range
Maximum Volume Setting
Minimum Volume Setting
Mute Attenuation
Channel-to-Channel Gain
Matching
Gain Change per Step
MICROPHONE BIAS
MIC Bias Supply Voltage
Bias Output Voltage
Bias Output Current
MIC Supply Current Consumption
Bias Output Resistance
Bias Output Noise
DD
= 1.8V, V
PARAMETER
MICVDD
= 3.0V, V
Functional Diagram/Typical Application
GND
= V
I
SYMBOL
V
BIAS_OUT
V
R
I
MICVDD
V
MBIAS
N_BIAS
KCP
MBIAS
C
PGND
Z
BIAS
C
IN
IN
L
= 0V, C
R
R
R
Per channel
Output voltage needed
to toggle the charge-
pump outputs
R
voltage, A-weighted,
32 samples/second
Gain = 6dB
From min to max volume setting
Volume setting -54dB P _VOL P 6dB
Volume setting -60dB P _VOL P -54dB
Guaranteed by MIC bias PSRR test
High output voltage
Low output voltage
R
voltage, T
MICR = 0b00, V
T
MICR = 0b01, V
T
MICR = 0b10, V
T
MICR = 0b11, V
T
With external capacitor, V
A
A
A
A
L
L
L
L
MICBIAS
= +25NC
= +25NC
= +25NC
= +25NC
= 10kI, gain R 0dB
= 10kI, gain < 0dB
= 32I
= 32I, peak
FLY
= C
A
= 2.2kI, high (2.6V) output
PVDD
= +25NC
Circuit.) (Note 2)
P
P
(Note 5)
P
(Note 6)
CONDITIONS
OUT
OUT
OUT
MBIAS
MBIAS
MBIAS
MBIAS
= C
= 0.5mW, R
= 4.5mW, R
= 20mW, R
PVSS
= 2.6V,
= 2.6V,
= 2.6V,
= 2.6V,
THSH = 0
THSH = 1
Into shutdown
Out of shutdown
MBIAS
= 1FF. Typical values tested at T
L
L
L
= 32I,
= 2.6V
= 32I
= 32I,
-60.5
1.84
2.02
2.39
2.76
MIN
-0.5
-60
5.5
2.4
2.4
1.2
16
TYP
0.55
0.07
470
200
200
150
150
4.5
6.8
0.4
-74
-74
-60
2.6
2.2
2.6
2.8
23
80
6
1
2
2
3
A
MAX
-59.5
+0.5
2.16
2.38
2.81
3.24
400
= +25NC, unless
6.5
3.6
2.8
75
+6
UNITS
FV
dBV
mW
mA
kI
dB
dB
dB
dB
dB
dB
FA
kI
pF
pF
RMS
V
V
V