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LM4931 Arkusz danych(PDF) 7 Page - Texas Instruments

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Numer części LM4931
Szczegółowy opis  Audio Power Amplifier Series Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
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LM4931 Arkusz danych(HTML) 7 Page - Texas Instruments

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LM4931
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SNAS251E – APRIL 2004 – REVISED MAY 2013
Electrical Characteristics DVDD = 3V, AVDD = 3V, RLHP = 32Ω, RLHF = 8Ω
(1)(2) (continued)
The following specifications apply for the circuit shown in Figure 62, unless otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
LM4931
Units
(Limits)
Typical(3
Limits(4)
)
SS
Side Tone Step Size
3
dB
Audio DAC (Typical numbers are with 6.144MHz audio clock and 48kHz sampling frequency)
RDAC
Audio DAC Ripple
20Hz–20kHz through headphone output
+/-0.1
dB
PBDAC
Audio DAC Passband width
–3dB point
22.7
kHz
SBADAC
Audio DAC Stop band Attenuation
Above 24kHz
76
dB
DRDAC
Audio DAC Dynamic Range
DC – 20kHz
97
dB
SNRDAC
Audio DAC SNR Digital Filter Section
DC – 20kHz
97
dB
PLL
fIN
Input Frequency on MCLK pin
12
10
MHz (min)
25
MHz (max)
SPI/I2C
fSPI
Maximum SPI Frequency
400
4000
kHz (max)
tSPISETD
SPI Data Setup Time
100
ns (min)
tSPISETENB
SPI ENB Setup Time
100
ns (min)
tSPIHOLDD
SPI Data Hold Time
100
ns (min)
tSPIHOLDENB
SPI ENB Hold Time
100
ns (min)
tSPICL
SPI Clock Low Time
500
ns (min)
tSPICH
SPI Clock HighTime
500
ns (min)
tSPIT
SPI Clock Transition Time
5
ns (min)
fCLKI2C
I2C_CLK Frequency
400
3400
kHz (max)
tI2CHOLD
I2C_DATA Hold Time
100
ns (min)
tI2CSET
I2C_DATA Setup Time
100
ns (min)
PCM/I2S
fCLKPCM
PCM_CLK Frequency
128
kHz
PCM_CLK Duty Cycle
50
40
% (min)
60
% (max)
I2S_CLK Frequency
I2S_RES = 0
1536
kHz
fCLKI2S
I2S_RES = 1
3072
kHz
I2S_WS Duty Cycle
50
40
% (min)
60
% (max)
Copyright © 2004–2013, Texas Instruments Incorporated
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