MAX9867ETJ+ Maxim Integrated Products, MAX9867ETJ+ Datasheet - Page 20

• Manufacturer Part Number: MAX9867ETJ+
• Description: IC STEREO AUD CODEC LP 32TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audior

Specifications of MAX9867ETJ+

• Data Interface: I²C, Serial
• Resolution (bits): 18 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 90
• Voltage - Supply, Analog: 1.65 V ~ 1.95 V
• Voltage - Supply, Digital: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Ultra-Low Power Stereo Audio Codec
20
TQFN-EP
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10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
PIN/BUMP
WLP
C3
C5
C6
C4
D6
D5
D4
D3
D2
A2
B3
A3
A4
B4
A5
B5
A6
B6
E6
E5
E4
JACKSNS/AUX
DIGMICDATA
DIGMICCLK
MICBIAS
ROUTN
MICLN/
ROUTP
LOUTN
MICLP/
MICRN
MICRP
NAME
DGND
AGND
PGND
AVDD
PREG
LINR
REG
LINL
SDA
SCL
REF
IRQ
Digital Ground
I
I
Hardware Interrupt Output. IRQ can be programmed to pull low when bits in
status register 0x00 are set. Read status register 0x00 to clear IRQ once set.
Repeat faults have no effect on IRQ until it is cleared by reading register 0x00.
Connect a 10kΩ pullup resistor to a 1.7V to 3.3V supply.
Analog Power Supply. Bypass to AGND with a 1µF capacitor.
Converter Reference. Bypass to AGND with a 2.2µF capacitor (1.23V nominal).
Positive Internal Regulated Supply. Bypass to AGND with a 1µF capacitor (1.6V
nominal).
PREG/2 Voltage Reference. Bypass to AGND with a 1µF capacitor (0.8V nominal).
Analog Ground
Low-Noise Microphone Bias. Connect a 2.2kΩ to 470Ω resistor to the positive
output of a microphone (1.525V nominal). Bypass to AGND with a 1µF capacitor.
Left Negative Differential Microphone Input or Digital Microphone Clock Output.
For analog microphones, AC-couple to the negative output of a microphone with a
1µF capacitor. For digital microphones, connect to the clock input of the
microphone.
Left Positive Differential Microphone Input or Digital Microphone Data Input. For
analog microphones, AC-couple to the positive output of a microphone with a 1µF
capacitor. For digital microphones, connect to the data output of the
microphone(s). Up to two digital microphones can be connected.
Right Positive Differential Microphone Input. AC-couple to the positive output of a
microphone with a 1µF capacitor.
Right Negative Differential Microphone Input. AC-couple to the negative output of
a microphone with a 1µF capacitor.
Left-Line Input. AC-couple analog audio signal to LINL with a 1µF capacitor.
Right-Line Input. AC-couple analog audio signal to LINR with a 1µF capacitor.
Jack Sense or Auxiliary ADC Input. When configured for jack detection, JACKSNS
detects the presence or absence of a jack. See the Mode Configuration section
for details. When configured as an auxiliary ADC input, AUX is used to measure
DC voltages.
Headphone Power Ground
Positive Right-Channel Headphone Output. Connect directly to the load in
differential and capacitorless mode. AC-couple to the load in single-ended mode.
Negative Right-Channel Headphone Output. Inverting output in differential mode.
Leave unconnected in capacitorless and fast turn-on single-ended mode. Bypass
with a 1µF capacitor to AGND in clickless, single-ended mode.
Negative Left-Channel Headphone Output. Noninverting output in differential
mode. Common headphone return in capacitorless mode. Leave unconnected in
fast turn-on single-ended mode. Bypass with a 1µF capacitor to AGND in clickless
single-ended mode.
2
2
C Serial-Clock Input. Connect a pullup resistor to a 1.7V to 3.3V supply.
C Serial-Data Input/Output. Connect a pullup resistor to a 1.7V to 3.3V supply.
FUNCTION
Pin Description