MAX9867EWV+T Maxim Integrated Products, MAX9867EWV+T Datasheet - Page 45

• 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

The MAX9867 includes complete power management
control to minimize power usage. The DAC and both
ADC can be independently enabled so that only the
The MAX9867 includes a revision code to allow easy
identification of the device revision. The revision code is
0x42. See Table 18 for the revision code register.
Table 17. Power-Management Register
Table 18. Revision Code Register
System Shutdown
Revision
REGISTER
REGISTER
LNREN
DALEN
DAREN
ADLEN
ADREN
LNLEN
SHDN
BITS
______________________________________________________________________________________
Shutdown
Places the device in low-power shutdown mode.
Left-Line Input Enable
Enables the left-line input preamp and automatically enables the left and right headphone amplifiers.
If LNREN = 0, the left-line input signal is also routed to the right ADC input mixer and right headphone
amplifier.
Note: Control of the right headphone amplifier can be overridden by HPMODE.
Right-Line Input Enable
Enables the right-line input preamp and automatically enables the right headphone amplifier.
Note: Control of the right headphone amplifier can be overridden by HPMODE.
Left DAC Enable
E nab l es the l eft D AC and autom ati cal l y enab l es the l eft and r i g ht head p hone am p l i fi er s. If D ARE N = 0, the
l eft D AC si g nal i s al so r outed to the r i g ht head p hone am p l i fi er .
Note: Control of the right headphone amplifier can be overridden by HPMODE.
Right DAC Enable
Enabling the right DAC must be done in the same I
DAC operation requires DALEN = 1.
Left ADC Enable
Right ADC Enable
Enabling the right ADC must be done in the same I
ADC can be enabled while the left ADC is running if used for DC measurements. SHDN must be toggled
to disable the right ADC in this case. Right ADC operation requires ADLEN = 1.
SHDN
B7
B7
Ultra-Low Power Stereo Audio Codec
Power Management
LNLEN
B6
B6
Revision Code
LNREN
B5
B5
B4
B4
0
required circuitry is active. Toggle the SHDN bit when-
ever a configuration change is made. Table 17 is the
power-management register.
REV
FUNCTION
DALEN
B3
B3
2
2
C write operation that enables the left DAC. Right
C write operation that enables the left ADC. The right
DAREN
B2
B2
ADLEN
B1
B1
ADREN
B0
B0
REGISTER
REGISTER
ADDRESS
ADDRESS
0x17
0xFF
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