Analog Devices MAX98380 Manuals

Manuals and User Guides for Analog Devices MAX98380. We have 1 Analog Devices MAX98380 manual available for free PDF download: Manual

Analog Devices MAX98380 Manual (81 pages)

Small, Boosted, Digital Input Class-D Amplifier

Brand: Analog Devices | Category: Amplifier | Size: 2 MB

General Description
1
Applications
1
Benefits and Features
1
Simplified Block Diagram
2
Table of Contents
3
Absolute Maximum Ratings
7
Package Information
7
Wlp
7
Electrical Characteristics
7
Typical Operating Characteristics
15
Pin Configuration
26
Max98380
26
Pin Description
26
Functional Diagrams
28
Detailed Block Diagram
28
Detailed Description
29
Device State Control
29
Hardware Shutdown State
29
Software Shutdown State
29
Active State
29
PCM Interface
29
PCM Clock Configuration
29
PCM Data Format Configuration
29
I 2 S/Left-Justified Mode
30
Figure 1. Standard I 2 S Mode
30
Figure 2. Left-Justified Mode
30
Table 1. Supported I 2 S/Left-Justified Mode Configurations
30
TDM Modes
31
Figure 3. Left-Justified Mode (LRCLK Inverted)
31
Figure 4. Left-Justified Mode (BCLK Inverted)
31
Table 2. Supported TDM Mode Configurations
31
PCM Data Path Configuration
33
PCM Data Input
33
Figure 5. TDM Modes
33
PCM Interface Timing
34
Device Status Bits
34
Figure 6. PCM Data Input
34
Figure 7. PCM Interface Timing/Slave Mode-LRCLK, BCLK, DIN Timing Diagram
34
Speaker Path
35
Table 3. Status Bit Event Sources
35
Speaker Path Dither
36
Speaker Path Data Inversion
36
Speaker Path DC Blocking Filter
36
Speaker Path Digital Volume Control
36
Speaker Safe Mode
36
Speaker Path Maximum Peak Output Voltage Scaling
36
DAC Digital Filters
36
Figure 8. Speaker Amplifier Path
36
Dynamic Headroom Tracking (DHT)
37
DHT Supply Tracking and Headroom
37
Figure 9. Simplified Dynamic Headroom Tracking System Block Diagram
37
Figure 10. VTPO and ATPO Calculation Example
38
DHT Mode 1-Signal Distortion Limiter (SDL)
39
Figure 11. Signal Distortion Limiter with VMPO ≤ VSUP and +20% Headroom (SUP HR )
39
Figure 12. Signal Distortion Limiter with VMPO ≤ VSUP and 0% Headroom (SUP HR )
40
Figure 13. Signal Distortion Limiter with VMPO ≤ VSUP and -20% Headroom (SUP HR )
41
Figure 14. Signal Distortion Limiter with VMPO > VSUP and +20% Headroom (SUP HR )
42
Figure 15. Signal Distortion Limiter with VMPO > VSUP and 0% Headroom (SUP HR )
42
DHT Mode 2-Signal Level Limiter (SLL)
43
Figure 16. Signal Distortion Limiter with VMPO > VSUP and -20% Headroom (SUPHR)
43
Figure 17. Signal Level Limiter with VTPO > VSLL as VSUP Decreases
44
DHT Attenuation
45
Figure 18. Signal Level Limiter with VTPO < VSLL Showing Amplifier Output Clipping
45
Figure 19. Distortion Limiter Case with -20% Headroom and AMAX Exceeded
46
DHT Ballistics
47
Charge Pump Boost
47
Figure 20. Distortion Limiter Case with +20% Headroom and AMAX Exceeded
47
Speaker Amplifier
48
Class-D Output Short-Circuit Protection
48
Click-And-Pop Suppression
48
Ultra-Low EMI Filterless Output Stage
48
Table 4. Charge Pump Soft Timer Settings
48
Measurement ADC
49
Measurement ADC Thermal Channel
49
Measurement ADC PVDD Channel
49
Thermal Protection
49
Thermal Warning and Thermal Shutdown Configuration
49
Thermal Shutdown Recovery Configuration
50
Thermal Foldback
50
I 2 C Serial Interface
50
Slave Address
50
Table 5. I C Slave Address
50
Bit Transfer
51
START and STOP Conditions
51
Figure 21. I 2 C Interface Timing Diagram
51
Figure 22. I 2 C START, STOP, and REPEATED START Conditions
51
Early STOP Conditions
52
Acknowledge
52
Write Data Format
52
Figure 23. I 2 C Acknowledge
52
Read Data Format
53
Figure 24. I 2 C Writing One Byte of Data to the Slave
53
Figure 25. I 2 C Writing N-Bytes of Data to the Slave
53
I 2 C Register Map
54
Control Bit Field Types and Write Access Restrictions
54
Figure 26. I 2 C Reading One Byte of Data from the Slave
54
Figure 27. I 2 C Reading N-Bytes of Data from the Slave
54
Table 6. Control Bit Types and Write Access Restrictions
54
Register Map
56
Register Details
58
Applications Information
79
Layout and Grounding
79
Recommended External Components
79
Table 7. Component List
79
Typical Application Circuits
80
Typical Applications Circuit
80
Ordering Information
80
Revision History
81

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