MAX98088EWY+T Maxim Integrated Products, MAX98088EWY+T Datasheet - Page 101
MAX98088EWY+T
Manufacturer Part Number
MAX98088EWY+T
Description
Audio CODECs DUAL I2S CODEC AUDIO STEREO
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX98088EWYT.pdf
(123 pages)
Specifications of MAX98088EWY+T
Number Of Adc Inputs
2
Number Of Dac Outputs
2
Resolution
24 bit
Operating Supply Voltage
1.8 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
WLP-63
Number Of Channels
2
Supply Current
4.5 mA
Thd Plus Noise
- 77 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 101 of 123
- Download datasheet (12Mb)
The IC's power limiter tracks the RMS power delivered to
the loudspeaker and briefly mutes the speaker amplifier
output if the speaker is at risk of sustaining permanent
damage.
Loudspeakers are typically damaged when the voice coil
overheats due to extended operation above the rated
power. During normal operation, heat generated in the
voice coil is transferred to the speaker’s magnet, which
transfers heat to the surrounding air. For the voice coil to
overheat, both the voice coil and the magnet must over-
heat. The result is that a loudspeaker can operate above
its rated power for a significant time before it heats suf-
ficiently to cause damage.
Table 25. Power Limiter Registers
REGISTER
0x44
BIT
7
6
5
4
2
1
0
PWRTH
NAME
PWRK
Power Limiter Threshold
If the RMS output power from the speaker amplifiers exceeds this threshold, the out-
put is briefly muted to protect the speaker. The threshold is measured in watts assum-
ing an 8I load. VBAT must correctly reflect the voltage of SPKLVDD/SPKRVDD to
achieve accurate thresholds.
Power Limiter Weighting Factor
Determines the balance between time constant 1 and 2 to match the dominance of
each time constant in the loudspeaker.
Power Limiter
VALUE
VALUE
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
000
001
010
011
100
101
110
111
with FlexSound Technology
The IC's power limiter includes user-programmable time
constants and power thresholds to match a wide range
of loudspeakers. Program the power limiter’s threshold to
match the loudspeaker’s rated power handling. This can
be determined through measurement or the loudspeak-
er’s specification. Program time constant 1 to match the
voice coil’s thermal time constant. Program time constant
2 to match the magnet’s thermal time constant. The time
constants can be determined by plotting the voice coil’s
resistance vs. time as power is applied to the speaker.
THRESHOLD
Power limiter
disabled
Stereo Audio Codec
0.05
0.06
0.09
0.11
0.13
0.18
0.22
(W)
DESCRIPTION
T1 (%)
62.5
87.5
12.5
37.5
100
50
75
25
VALUE
0xA
0xB
0xC
0xD
0x8
0x9
0xE
0xF
T2 (%)
37.5
12.5
87.5
62.5
THRESHOLD
50
25
75
0
0.27
0.35
0.48
0.72
1.00
1.43
1.57
1.80
(W)
101
Related parts for MAX98088EWY+T
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Stereo Audio Codec With Flexsound Technology
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products