MAX9851ETM+ Maxim Integrated Products, MAX9851ETM+ Datasheet - Page 12

• Manufacturer Part Number: MAX9851ETM+
• Description: IC CODEC AUDIO STEREO 48TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audior

Specifications of MAX9851ETM+

• Data Interface: Serial
• Resolution (bits): 18 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 81.5 / 88
• Dynamic Range, Adcs / Dacs (db) Typ: 82 / 87.5
• Voltage - Supply, Analog: 2.6 V ~ 3.3 V
• Voltage - Supply, Digital: 1.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Number Of Adc Inputs: 3
• Number Of Dac Outputs: 3
• Conversion Rate: 48 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, I2C)
• Resolution: 18 bit
• Operating Supply Voltage: 1.7 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 2 ADC/2 DAC
• Supply Current: 6.2 mA
• Thd Plus Noise: - 84 .5 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(AV
10kΩ, R
PGAs = 0dB, HP/REC volume = -20.0dB, SPK volume = -20.4dB, line output gain = -0.4dB, T
noted. Typical values are at T
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
12
Sidetone Volume Control Range
Sidetone Mute Attenuation
CHARGE PUMP
Charge-Pump Oscillator
Frequency
MICROPHONE AMPLIFIERS
Preamplifier Gain
MIC PGA Gain
MIC Mute Attenuation
Common-Mode Rejection Ratio
MIC Input Voltage Range
MIC Input Resistance
MIC GND Sense Input
Resistance
MIC Input Resistance Matching
MIC Input Bias Voltage
Input Voltage Noise
Total Harmonic Distortion Plus
Noise
MIC Power-Supply Rejection
Ratio
DD
______________________________________________________________________________________
= CPV
OUTR+
PARAMETER
DD
to R
= +3V, DV
OUTR-
= 10kΩ, C1 = 0.22µF, C2 = C
DD
A
= DV
= +25°C.) (See Functional Diagrams/Typical Operating Circuits).
DDS2
AV
SYMBOL
R
R
R
E
THD+N
AV
CMRR
IN_MICS
PSRR
V
MATCH
IN_MIC
IN_MIC
f
MICPGA
OSC
CML
= +1.8V, PV
PRE
f = 1kHz, sidetone deselected from input
mixer
EXTMIC_
PGA gain = 0dB
PGA gain = +20dB
f = 1kHz
EXTMIC_, V
AV
INTMIC_, EXTMIC_
EXTMICGND
INTMIC_, EXTMIC_
EXTMICGND
INTMICP to INTMICN or EXTMICL to
EXTMICR
Measured at INTMIC_, EXTMIC_, and
EXTMICGND
f = 1kHz, AV
AV
V
AV
V
f = 1kHz, BW = 22Hz to 20kHz
AV
V
BW = 22Hz to 20kHz
AV
V
output referred
V
output referred
IN
IN
IN
RIPPLE
RIPPLE
PRE
PRE
PRE
PRE
DD
DD
= 2V
= 200mV
= 20mV
= 2.6V to 3.3V, T
= +20dB
= 0dB, AV
= +20dB, AV
= +20dB, AV
NREG
= +3.3V, R
= 100mV
= 100mV
P-P
, f = 1kHz, BW = 22Hz to 20kHz
IN
P-P
PRE
P-P
= C
= 100mV
, f = 1kHz,
CONDITIONS
AV
AV
,
= +20dB, R
PREG
MICPGA
P-P
P-P
HP
PRE
PRE
MICPGA
MICPGA
at 217Hz,
at 10kHz,
= 32Ω, Z
= +20dB
= +20dB
A
= C
P-P
= +25°C
= 0dB,
at 217Hz,
INTMICBIAS
= 0dB,
= +20dB,
SOURCE
SPK
= 8Ω + 10µH, R
= 0Ω
, C
MBIAS
A
+18.5
+18.5
-34.0
= C
MIN
-0.9
-0.9
-0.1
-0.1
295
= T
30
15
48
-1
REC
REF
MIN
= 32Ω, R
= 1µF, MCLK = 13MHz, all
0.035
0.035
to T
TYP
0.06
650
105
0.3
80
80
50
25
25
65
65
65
0
MAX
OUTL+
, unless otherwise
+30.5
+20.5
+20.5
MAX
1200
+0.4
+0.4
+0.1
+0.1
+1
70
36
to R
nV/√Hz
OUTL-
UNITS
kHz
dB
dB
dB
dB
dB
dB
kΩ
kΩ
dB
dB
dB
%
%
V
V
=