MAX9888EWY+T Maxim Integrated Products, MAX9888EWY+T Datasheet - Page 101

• Manufacturer Part Number: MAX9888EWY+T
• Description: IC CODEC AUDIO FLEXSOUND 63WLP
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive®, FLEXSOUND™r
• Type: Class Dr

Specifications of MAX9888EWY+T

• Output Type: 3-Channel with Stereo Headphones
• Max Output Power X Channels @ Load: 1.37W x 2 @ 8 Ohm; 40mW x 2 @ 16 Ohm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²S, Microphone, Mute, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 63-WLP
• For Use With: MAX9888EVKIT+ - KIT EVALUATION FOR MAX9888
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 34. Change in JKSNS Upon Jack Removal
Table 35. Jack Detection Registers
The IC detects jack removal by monitoring JACKSNS
for transitions to the 11 state. Set JDETEN to enable
jack detection circuitry. A pullup current is automatically
(Read Only)
REGISTER
0x4C
0x02
0x49
JACK TYPE
GND
MIC
BIT
7
6
7
1
0
7
6
1
GND
GND
JDETEN
VBATEN
JKSNS
NAME
SHDN
JDWK
JDEB
R
R
L
L
JACKSNS State
Reports the status of JACKSNS when JDETEN = 1.
Jack Detection Enable
0 = Disabled
1 = Enabled
Jack Detection Debounce
Configures the debounce time for setting JDET.
00 = 25ms
01 = 50ms
10 = 100ms
11 = 200ms
See the Power Management section.
See the Battery Measurement section.
JACKSNS Pullup
When JDWK = 1 JACKSNS is slow to increase in voltage. Set JDWK = 0 before setting
JDETEN = 1 to prevent false detection.
Valid when MBIAS = 0 or SHDN = 0.
0 = 2.4kI to SPKLVDD (allows microphone detection)
1 = 5FA to SPKLVDD (minimizes supply current)
Jack Removal
JDWK = 1 AND MICBIAS DISABLED
VALUE
with FLEXSOUND Technology
00
01
10
11
JKSNS: 00 è 11
JKSNS: 00 è 11
MBEN = 1
MBEN = 0
MBEN = 1
MBEN = 0
MBEN = 1
MBEN = 0
MBEN = 1
MBEN = 0
MODE
applied to JACKSNS if MICBIAS is disabled. Set JDWK
to minimize supply current if button detection is not
required. Table 34 shows the change in JKSNS that
occurs when a jack is removed.
Stereo Audio CODEC
DESCRIPTION
V
V
0.1 x V
0.1 x V
Reserved
Reserved
0.95 x V
0.95 x V
JACKSNS
JACKSNS
MICBIAS
SPKLVDD
MICBIAS
SPKLVDD
< 0.1 x V
< 0.1 x V
JDWK = 0 OR MICBIAS ENABLED
< V
< V
< V
DESCRIPTION
< V
JACKSNS
JACKSNS
JACKSNS
MICBIAS
SPKLVDD
JKSNS: 00 è 11
JKSNS: 01 è 11
JACKSNS
< 0.95 x V
< 0.95 x V
MICBIAS
SPKLVDD
101