LM4937RL/NOPB National Semiconductor, LM4937RL/NOPB Datasheet - Page 8

• Manufacturer Part Number: LM4937RL/NOPB
• Description: IC AUDIO SUBSYSTM 1.25W 36USMDXT
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4937RL/NOPB

• Output Type: 1-Channel (Mono) with Mono and Stereo Headphones
• Max Output Power X Channels @ Load: 1.25W x 1 @ 8 Ohm; 80mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²C, I²S, Mute, Shutdown, SPI, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 36-MicroSMDxt
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4937RLTR

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SPI/I
f
t
t
t
t
t
t
f
t
t
V
V
SPI/I
f
t
t
t
t
t
t
f
t
t
V
V
I
f
V
V
I
f
SPI
SPISETD
SPISETENB
SPIHOLDD
SPIHOLDENB
SPICL
SPICH
CLKI2C
I2CHOLD
I2CSET
SPI
SPISETD
SPISETENB
SPIHOLDD
SPIHOLENB
SPICL
SPICH
CLKI2C
I2CHOLD
I2CSET
2
CLKI
2
CLKI
IH
IL
IH
IL
S (1.7V
IH
IL
S (2.7V
Symbol
2
2
2
2
S
S
C (1.7V
C (2.2V
≤
≤
VDD_IO
VDD_IO
≤
≤
Maximum SPI Frequency
SPI Data Setup Time
SPI ENB Setup Time
SPI Data Hold Time
SPI ENB Hold Time
SPI Clock Low Time
SPI Clock High Time
I
I
I
I
I
Maximum SPI Frequency
SPI Data Setup Time
SPI ENB Setup Time
SPI Data Hold Time
SPI ENB Hold Time
SPI Clock Low Time
SPI Clock High Time
I
I
I
I
I
I
I
Digital Input High Voltage
Digital Input Low Voltage
I
I
2
2
2
2
2
2
2
2
2
2
2
2
2
2
I
I
C_CLK Frequency
C_DATA Hold Time
C_DATA Setup Time
C/SPI Input High Voltage
C/SPI Input Low Voltage
C_CLK Frequency
C_DATA Hold Time
C_DATA Setup Time
C/SPI Input High Voltage
C/SPI Input Low Voltage-
S_CLK Frequency
S_WS Duty Cycle
S_CLK Frequency
S_WS Duty Cycle
2
2
CV
CV
DD
DD
≤
≤
2.7V)
4.0V)
≤
≤
2.2V)
4.0V)
Parameter
I
I
I
I
2
2
2
2
S_RES = 1
S_RES = 0
S_RES = 0
S_RES = 1
8
Conditions
I
0
LM4937
(Note 6)
Typical
2
I
CV
2
1536
3072
1536
3072
CV
50
50
0
DD
DD
0.25 x
I
(Notes 7,
2
VDD_IO
VDD_IO
CV
I
I
I
Limits
12288
12288
0.75 x
0.25 x
2
2
2
1000
4000
6144
6144
0.7 x
0.7 x
0.3 x
250
250
250
250
500
500
400
250
250
CV
100
100
100
100
125
125
400
100
100
CV
CV
40
60
40
60
8)
DD
DD
DD
DD
kHz (max)
kHz (max)
kHz (max)
kHz (max)
kHz (max)
kHz (max)
kHz (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
kHz (ax)
(Limits)
V (max)
V (max)
V (min)
V (min)
V (min)
V (ax)
Units
%
%
%
%