LM49370RLX/NOPB National Semiconductor, LM49370RLX/NOPB Datasheet - Page 25

• Manufacturer Part Number: LM49370RLX/NOPB
• Description: IC AUDIO SUBSYSTEM 1.2W 49USMDXT
• Manufacturer: National Semiconductor
• Series: Boomer®, PowerWise®r
• Type: Class Dr

Specifications of LM49370RLX/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
• Operational Class: Class-D
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Supply Current (max): 15.5@3.3VmA
• Power Supply Requirement: Quint
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 86dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 1.8/2.5V
• Dual Supply Voltage (max): 4.5/5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 49
• For Use With: LM49370RLEVAL - BOARD EVALUATION LM49370RL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49370RLX

Bits
3:0
6:4
12.7 PLL P DIVIDER CONFIGURATION REGISTER
This register is used to control the output divider of the PLL. (Note 14)
The division of the P divider is derived from PLL_P such that:
Note 14: See Further Notes on PLL Programming for more details.
7
FAST_VCO
PLL_P
Q_DIV
Field
This programs the PLL output divider as follows:
This programs the Q Divider
This programs the PLL VCO range:
FAST_VCO
PLL_P
Q_DIV
000
001
010
011
100
101
110
111
14
15
TABLE 8. PLL_P (0x04h)
...
0
1
2
3
4
0
1
2
2
2
2
2
2
2
2
P = (PLL_P + 1) / 2
25
Description
Output Divider Value
No Divided Clock
PLL VCO Range
Divide Value
40 to 60MHz
60 to 80MHz
3 to 7
1.5
2.5
7.5
10
12
13
1
2
8
2
3
4
6
8
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