MAX98089EVKIT+WLP Maxim Integrated, MAX98089EVKIT+WLP Datasheet - Page 116

• Manufacturer Part Number: MAX98089EVKIT+WLP
• Description: Audio IC Development Tools
• Manufacturer: Maxim Integrated
• Type: Audio CODECr

Specifications of MAX98089EVKIT+WLP

• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX98089
• Operating Supply Voltage: 2.8 V to 5.5 V
• Interface Type: I2C
• Operating Supply Current: 1 A

Table 34. Jack Detection Registers (continued)
The IC measures the voltage applied to SPKLVDD (typically the battery voltage) and reports the value in register 0x03.
This value is also used by the speaker limiter circuitry to set accurate thresholds. When the battery measurement func-
tion is disabled, the battery voltage is user programmable.
Table 35. Battery Measurement Registers
Maxim Integrated
REGISTER
REGISTER
0x4E
0x03
0x51
BIT
BIT
4
3
2
1
0
7
6
3
2
1
0
7
6
5
4
0
PERFMODE
HPPLYBCK
PWRSV8K
SPREGEN
VBATEN
BIASEN
VCMEN
PWRSV
NAME
NAME
BGEN
JDWK
SHDN
VBAT
See the Power Management section.
See the Power Management section.
See the Power Management section.
See the Power Management 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.
0 = 2.4kI to SPKLVDD (allows microphone detection)
1 = 5FA to SPKLVDD (minimizes supply current)
Battery Voltage
Read VBAT when VBATEN = 1 to determine V
= 0 to allow proper speaker amplifier signal processing. Calculate/program the battery
voltage using the following formula:
V
See the Power Management section.
Battery Measurement Enable. Enables an internal ADC to measure V
0 = Disabled (register 0x03 readable and writeable)
1 = Enabled (register 0x03 read only)
See the Power Management section.
See the Power Management section.
See the Power Management section.
See the Power Management section.
BATTERY
Low-Power, Stereo Audio Codec
= 2.55V + [VBAT/10]
with FlexSound Technology
DESCRIPTION
DESCRIPTION
SPKLVDD
. Program VBAT when VBATEN
Battery Measurement
MAX98089
SPKLVDD
.
116