LM49350RLX/NOPB National Semiconductor, LM49350RLX/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM49350RLX/NOPB
• Description: IC AUDIO SUBSYSTM .8W D 36USMDXT
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM49350RLX/NOPB

• Output Type: 1-Channel (Mono) with Mono and Stereo Headphones
• Max Output Power X Channels @ Load: 2W x 1 @ 4 Ohm; 69mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, DAC, Depop, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 36-MicroSMDxt
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49350RLX

1.0 General Description ......................................................................................................................... 1
2.0 Applications .................................................................................................................................... 1
3.0 Key Specifications ........................................................................................................................... 1
4.0 Features ........................................................................................................................................ 1
5.0 LM49350 Overview .......................................................................................................................... 2
6.0 Typical Application ........................................................................................................................... 3
7.0 Connection Diagrams ..................................................................................................................... 10
8.0 Absolute Maximum Ratings ............................................................................................................ 12
9.0 Operating Ratings ......................................................................................................................... 12
10.0 Electrical Characteristics: A_V
11.0 Timing Characteristics: DV
12.0 Typical Performance Characteristics .............................................................................................. 17
13.0 System Control ............................................................................................................................ 24
14.0 Device Register Map .................................................................................................................... 27
15.0 Basic PMC Setup Register ............................................................................................................ 32
16.0 PMC Clocks Register ................................................................................................................... 33
17.0 PMC Clock Divide Register ........................................................................................................... 33
18.0 LM49350 Clock Network .............................................................................................................. 34
19.0 PLL Setup Registers .................................................................................................................... 36
20.0 Analog Mixer Control Registers ..................................................................................................... 42
21.0 ADC Control Registers ................................................................................................................. 48
22.0 DAC Control Registers ................................................................................................................. 50
23.0 Digital Mixer Control Registers ...................................................................................................... 51
24.0 Audio Port Control Registers ......................................................................................................... 55
25.0 Digital Effects Engine ................................................................................................................... 60
26.0 DAC Effects Registers .................................................................................................................. 78
27.0 GPIO Registers ........................................................................................................................... 95
FIGURE 24. Demo Board Schematic ..................................................................................................... 97
28.0 Demonstration Board Layout ......................................................................................................... 98
29.0 Revision History ........................................................................................................................ 101
30.0 Physical Dimensions .................................................................................................................. 102
FIGURE 1. LM49350 Block Diagram ............................................................................................................. 2
FIGURE 2. Example Application in Multimedia Phone with a Dedicated Earpiece and Mono Loudspeaker ......................... 3
FIGURE 3. Example Application in Multimedia Phone Using Stereo Loudspeaker ...................................................... 4
FIGURE 4. Example Application in a Multimedia Phone Using a Dedicated RF Module for Voice Modern Functions ............. 5
FIGURE 5. Example Application in a Portable Media Player with a Differential Stereo Line Input .................................... 6
FIGURE 6. I
FIGURE 7. I
FIGURE 8. I
FIGURE 9. Example I
FIGURE 10. Example I
FIGURE 11. I
FIGURE 12. Internal Clock Network ............................................................................................................. 35
FIGURE 13. PLL1 Loop ........................................................................................................................... 36
FIGURE 14. PLL2 Loop ............................................................................................................................ 36
7.1 PIN TYPE DEFINITIONS ........................................................................................................ 11
13.1 I
13.2 I
13.3 I
13.4 TRANSFERRING DATA ........................................................................................................ 24
13.5 I
20.1 CLASS D LOUDSPEAKER AMPLIFIER .................................................................................. 42
20.2 SPREAD SPECTRUM MODULATION .................................................................................... 42
20.3 CLASS D POWER DISSIPATION AND EFFICIENCY ............................................................... 42
20.4 HEADPHONE AMPLIFIER FUNCTION ................................................................................... 43
20.5 CHARGE PUMP CAPACITOR SELECTION ............................................................................ 43
20.6 CHARGE PUMP FLYING CAPACITOR (C6) ............................................................................ 43
20.7 CHARGE PUMP FLYING CAPACITOR (C5) ............................................................................ 43
20.8 AUXILIARY OUTPUT AMPLIFIER .......................................................................................... 44
23.1 DIGITAL MIXER ................................................................................................................... 51
25.1 DIGITAL SIGNAL PROCESSOR (DSP) ................................................................................... 60
25.2 ALC OVERVIEW .................................................................................................................. 62
2
2
2
2
2
2
2
C SIGNALS ....................................................................................................................... 24
C DATA VALIDITY ............................................................................................................. 24
C START AND STOP CONDITIONS ..................................................................................... 24
C TIMING PARAMETERS .................................................................................................. 26
C Signals: Data Validity ............................................................................................................ 24
C Start and Stop Conditions ...................................................................................................... 24
C Chip Address ..................................................................................................................... 24
2
C Timing Diagram ................................................................................................................. 26
2
C Write Cycle ............................................................................................................ 25
2
C Read Cycle .......................................................................................................... 26
DD
= I/OV
DD
= LS_V
DD
Table of Contents
= 1.8V
DD
List of Figures
= 3.3V; D_V
(Notes 1, 2)
7
DD
................................................................. 16
= I/O_V
DD
= 1.8V
(Notes 1, 2)
..................... 12
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