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LM4934 데이터시트(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
부품명 LM4934
상세설명  3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4934 데이터시트(HTML) 8 Page - National Semiconductor (TI)

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Digital Section Electrical Characteristics (Notes 1, 2)
The following specifications apply for 3V
≤ AV
DD
≤ 5V and 2.7V ≤ DV
DD
≤ 4.0V, unless otherwise specified. Limits apply for T
A
= 25˚C.
Symbol
Parameter
Conditions
LM4934
Units
(Limits)
Typical
(Note 6)
Limits
(Notes
7, 8)
DI
SD
Digital Shutdown Current
Mode 0, DV
DD = 3.0V
No MCLK
0.01
1
µA
DI
DD
Digital Power Supply Current
f
MCLK = 12MHz, DVDD = 3.0V
ALL MODES EXCEPT 0
5.3
8
mA
PLLI
DD
PLL Quiescent Current
f
MCLK = 12MHz, DVDD = 3.0V
4.8
6
mA
Audio DAC (Typical numbers are with 6.144MHz audio clock and 48kHz sampling frequency
R
DAC
Audio DAC Ripple
20Hz - 20kHz through headphone output
+/-0.1
dB
PB
DAC
Audio DAC Passband width
-3dB point
22.6
kHz
SBA
DAC
Audio DAC Stop band Attenuation
Above 24kHz
76
dB
DR
DAC
Audio DAC Dynamic Range
DC - 20kHz, –60dBFS; AES17 Standard
See Table 4
Table 4
dB
SNR
Audio DAC-AMP Signal to Noise
Ratio
A-Weighted, Signal = V
O at 0dBFS, f =
1kHz
Noise = digital zero, A-weighted, See
Table 4
Table 4
dB
SNR
DAC
Internal DAC SNR
A-weighted (Note 10)
95
dB
PLL
f
IN
Input Frequency on MCLK pin
12
10
MHz
26
SPI/I
2C
f
SPI
Maximum SPI Frequency
4000
kHz (max)
t
SPISETD
SPI Data Setup Time
100
ns (max)
t
SPISETENB
SPI ENB Setup Time
100
ns (max)
t
SPIHOLDD
SPI Data Hold Time
100
ns (max)
t
SPIHOLDENB
SPI ENB Hold Time
100
ns (max)
t
SPICL
SPI Clock Low Time
125
ns (max)
t
SPICH
SPI Clock High Time
125
ns (max)
f
CLKI2C
I
2C_CLK Frequency
400
kHz (max)
t
I2CHOLD
I
2C_DATA Hold Time
100
ns (max)
t
I2CSET
I
2C_DATA Setup Time
100
ns (max)
V
IH
I
2C/SPI Input High Voltage
I
2CV
DD
0.7 x
I
2CV
DD
V (min)
V
IL
I
2C/SPI Input Low Voltage
0
0.3 x
I
2CV
DD
V (max)
I
2S
f
CLKI2SI
2S_CLK Frequency
I
2S_RES = 0
1536
6144
kHz (max)
I
2S_RES = 1
3072
12288
I
2S_WS Duty Cycle
50
40
%
V
IH
Digital Input High Voltage
0.7 x
DV
DD
V (min)
V
IL
Digital Input Low Voltage
0.3 x
DV
DD
V (max)
Note 1: All voltages are measured with respect to the GND pin unless otherwise specified.
www.national.com
8


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