LM49370RL/NOPB National Semiconductor, LM49370RL/NOPB Datasheet - Page 53
LM49370RL/NOPB
Manufacturer Part Number
LM49370RL/NOPB
Description
IC AUDIO SUBSYSTEM 1.2W 49USMDXT
Manufacturer
National Semiconductor
Series
Boomer®, PowerWise®r
Type
Class Dr
Datasheet
1.LM49370RLNOPB.pdf
(100 pages)
Specifications of LM49370RL/NOPB
Output Type
1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1.2W x 1 @ 8 Ohm; 52mW x 2 @ 16 Ohm
Voltage - Supply
2.5 V ~ 5.5 V
Features
3D, Depop, I²C, I²S, Microphone, Mute, PCM, Shutdown, SPI, Standby, Volume Control
Mounting Type
Surface Mount
Package / Case
49-MicroSMDxt
Dc
07+
For Use With
LM49370RLEVAL - BOARD EVALUATION LM49370RL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM49370RLTR
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Bits
3:0
6:4
12.36 PCM PORT CLOCK CONFIGURATION REGISTER
This register is used to control the configuration of audio data interfaces.
PCM_SYNC_MODE
PCM_CLOCK_
GEN_MODE
Field
This programs a clock divider that divides the clock defined by PCM_CLOCK_SOURCE reg
(0x1Ch). The divided clock is used to generate PCM_CLK in Master mode. (Note 32)
This programs a clock divider that divides PCM_CLK. The divided clock is used to generate
PCM_SYNC.
Value
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Valve
TABLE 36. PCM Clock (0x1Dh)
000
001
010
011
100
101
110
111
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
53
Description
Divide By
3.90625
7.8125
2.5
10
16
20
—
—
—
1
2
4
6
8
3
5
Divide By
128
16
25
32
64
—
—
8
32/125
25/125
16/125
Ratio
2/5
1/3
—
—
—
—
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