MAX9867EWV+T Maxim Integrated Products, MAX9867EWV+T Datasheet - Page 42

• Manufacturer Part Number: MAX9867EWV+T
• Description: IC STEREO AUD CODEC LP 30WLP
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audior

Specifications of MAX9867EWV+T

• 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: 30-WLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX9867EWV+T; MAX9867EWV+TTR

Ultra-Low Power Stereo Audio Codec
The MAX9867 can accept audio from up to two digital
microphones. When using digital microphones, the left
analog microphone input is retasked as a digital micro-
Table 15. Digital Microphone Input Register
Figure 6. Digital Microphone Timing Diagram
42
Microphone
DIGMICL/DIGMICR
______________________________________________________________________________________
DIGMICDATA
REGISTER
DIGMICCLK
MICCLK
BITS
Digital Microphone Clock
00 = PCLK/8
01 = PCLK/6
10 = Reserved
11 = Reserved
Digital Left/Right Microphone Enable
Note: The left analog microphone input is never available when DIGMICL or DIGMICR = 1.
Digital Microphone Input
LEFT
B7
MICCLK
DIGMICL
t
HD, MIC
0
0
1
1
B6
t
SU, MIC
DIGMICL DIGMICR
1/f
B5
RIGHT
MICCLK
t
HD, MIC
DIGMICR
B4
0
1
0
1
phone input. The right analog microphone input is still
available to allow a combination of analog and digital
microphones to be used. Figure 6 shows the digital
microphone interface timing diagram. See Table 15.
t
SU, MIC
FUNCTION
B3
LEFT
0
microphone unavailable)
Left digital microphone
Left digital microphone
Line input (left analog
ADC input mixer
Left ADC Input
B2
0
B1
RIGHT
0
Right digital microphone
Right digital microphone
Right ADC Input
B0
ADC input mixer
ADC input mixer
0
REGISTER
ADDRESS
0x15