LM49450SQ/NOPB National Semiconductor, LM49450SQ/NOPB Datasheet - Page 29

• Manufacturer Part Number: LM49450SQ/NOPB
• Description: IC AUDIO SUBSYSTEM 2.5W D 32LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM49450SQ/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.5W x 2 @ 4 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: 32-LLP
• Amplifier Class: D
• No. Of Channels: 2
• Output Power: 1.2W
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: LLP
• Rohs Compliant: Yes
• For Use With: LM49450SQEVAL - BOARD EVAL FOR LM49450
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49450SQ; LM49450SQ; LM49450SQTR

I2S MODE CONTROL REGISTER (0x03h)
Default value is 0x00h.
B6:B4
Bit
B7
B3
MCLK (MHZ)
MCLK (MHZ)
MCLK (MHZ)
MCLK (MHZ)
I2S_WRD_2 (B6)
I2S_WRD_1 (B5)
I2S_WRD_0 (B5)
11.2896
11.2896
22.5792
11.025
2.8224
5.6448
12.288
12.288
24.576
I2S_STEREO
2.048
3.072
4.096
6.144
8.192
RESERVED
_REVERSE
12
Name
TABLE 10. Typical CP_DIV Values for DAC Mode 10
TABLE 11. Typical CP_DIV Values for DAC Mode 11
TABLE 9. Typical CP_DIV Values for DAC Mode 01
B6
0
0
0
0
1
1
1
1
TABLE 12. I2S Mode Control Register
Value
B5
X
0
0
1
1
0
0
1
1
0
1
CP_DIV
CP_DIV
CP_DIV
CP_DIV
138
150
67
73
11
17
18
24
33
37
49
68
75
68
75
29
B4
0
1
0
1
0
1
0
1
Unused
Sets I
Normal mode.
Left channel data goes to left channel output
Right channel data goes to right channel output.
Reverse mode.
Left channel data goes to right channel output
Right channel data goes to left channel output
2
S word size in Right Justified Mode
Nominal Frequency (Hz)
Nominal Frequency (Hz)
Nominal Frequency (Hz)
Nominal Frequency (Hz)
Description
324265
324324
341333
313600
323368
327680
332047
323368
327680
327234
323368
327234
323368
324881
325510
16
18
20
22
24
25
26
32
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