LM49370RL/NOPB National Semiconductor, LM49370RL/NOPB Datasheet - Page 26

• Manufacturer Part Number: LM49370RL/NOPB
• Description: IC AUDIO SUBSYSTEM 1.2W 49USMDXT
• Manufacturer: National Semiconductor
• Series: Boomer®, PowerWise®r
• Type: Class Dr

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
4:0
6:5
12.8 PLL N MODULUS CONFIGURATION REGISTER
This register is used to control the modulation applied to the feedback divider of the PLL. (Note 15)
The complete N divider is a fractional divider as such:
If the modulus input is zero then the N divider is simply an integer N divider. The output from the PLL is determined by the following
formula:
Note 15: See Further Notes on PLL Programming for more details.
7
PLL_CLK_SEL
PLL_N_MOD
RSVD
Field
This programs the PLL N divider's fractional component:
This selects the clock to be used as input for the audio PLL.
Reserved.
PLL_N_MOD
TABLE 9. PLL_N_MOD (0x05h)
2 to 30
N = PLL_N + PLL_N_MOD/32
00
01
10
11
31
0
1
2
2
2
2
F
out
= (F
in
26
*N)/(M*P)
PLL_INPUT_CLK
Description
Fractional Addition
PCM_CLK_IN
2/32 to 30/32
I2S_CLK_IN
MCLK
31/32
0/32
1/32
—