MAX97236EVKIT+ Maxim Integrated Products, MAX97236EVKIT+ Datasheet - Page 5

• Manufacturer Part Number: MAX97236EVKIT+
• Description: Audio Modules & Development Tools MAX97236 Eval Kit
• Manufacturer: Maxim Integrated Products

Specifications of MAX97236EVKIT+

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
otherwise noted. See the
Bias Power-Supply Rejection
MICROPHONE PREAMPLIFIER
MIC Preamp Gain
Supply Current Consumption
MIC Preamp Noise
Total Harmonic Distortion
Plus Noise
Low Corner Frequency Response
High Corner Frequency Response
MIC Preamplifier Power-Supply
Rejection
Output Common-Mode Voltage
Input Capacitance
Input Resistance
Output Impedance
6-BIT KEY ENCODER ADC
ADC Trip Level
Minimum ADC Course Range
Maximum ADC Course Range
Minimum ADC Fine Range
Maximum ADC Fine Range
CHARGE PUMP
Oscillator Frequency
ESD CHARACTERISTICS
ESD Protection
DD
= 1.8V, V
PARAMETER
MICVDD
= 3.0V, V
Functional Diagram/Typical Application
Audio Amplifier with Jack Detection
GND
THD+N
PSRR
= V
I
PSR
SYMBOL
V
DD_MAMP
V
C
R
N_MAMP
CM_MIC
f
f
Z
A
f
f-
OSC1
OSC2
MAMP
MAMP
PGND
-3dB
OUT
3dB
MIC
MAMP
MBIAS
MICPRE
= 0V, C
R
Gain = high, f
Gain = low, f
Input referred (Note 7), gain = 24dB,
A-weighted 0.1kHz to 7kHz
f
Relative to 997Hz
Relative to 997Hz
V
gain = +24dB, R
f
Voltage measured from MOUTP or
MOUTN to GND
AC-coupling capacitance
Input resistance
Level at which the mic bias must drop to
trigger a conversion
LSB 10mV
LSB 10mV
LSB 2mV
LSB 2mV
V
V
Pins connected to the jack:
TIP, RING1, RING2, SLEEVE, JACKSW
All other pins
IN
IN
MBIAS
MICVDD
OUT
OUT
FLY
= 1kHz, V
= 2kHz, 100mV
= 0V, R
= 0.2V, R
= C
= 2.2kI
= 2.4V to 3.6V, T
PVDD
Circuit.) (Note 2)
IN
IN
L
CONDITIONS
IN
= 997Hz
= open, T
L
= 1V
= 997Hz
MIC
= open
= C
P-P
V
3.6V, T
f
ripple
IN
MICVDD
RMS
= 500I
PVSS
= 2kHz, 100mV
ripple (Note 7)
A
A
A
= 1FF. Typical values tested at T
= +25NC
= +25NC
= 2.4V to
= +25NC,
P-P
MIN
74
23
11
74
78
> 300
0.128
0.128
TYP
0.64
0.64
200
100
665
0.8
±2
±2
90
75
24
12
15
90
58
85
10
83
3
0
A
MAX
= +25NC, unless
300
25
13
88
3
UNITS
kHz
kHz
MI
dB
dB
FA
FV
Hz
dB
pF
kV
%
I
V
V
V
V
V
V
5