lm4935rlx National Semiconductor Corporation, lm4935rlx Datasheet - Page 12

• Manufacturer Part Number: lm4935rlx
• Description: Audio Sub-system With Dual-mode Stereo Headphone And Mono High Efficiency Loudspeaker Amplifiers And Multi-purpose Adc
• Manufacturer: National Semiconductor Corporation

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STEREO DAC
R
PB
SBA
SNR
DR
DAC
PLL
F
I2S/PCM
f
f
DC
DC
I2C
T
T
SPI
T
T
T
T
T
T
VOLUME CONTROL
VCR
VCR
VCR
I2SCLK
PCMCLK
10.0 Electrical Characteristics
BB_V
otherwise stated. Limits apply for 25˚C. (Continued)
IN
I2CSET
I2CHOLD
SPISETENB
SPIHOLD-ENB
SPISETD
SPIHOLDD
SPICL
SPICH
DAC
Symbol
DAC
DAC
I2S_CLK
I2S_WS
DAC
DAC
LEVEL
AUX
DAC
CPIN
DD
= 1.8V, A_V
DAC Ripple
DAC Passband
DAC Stopband Attenuation
DAC Signal to Noise Ratio
DAC Dynamic Range
DAC Full Scale Output Level
Input Frequency Range
I2S CLK Frequency
PCM CLK Frequency
I2S_CLK Duty Cycle
I2S_WS Duty Cycle
I2C Data Setup Time
I2C Data Hold Time
Enable Setup Time
Enable Hold Time
Data Setup Time
Data Hold Time
Clock Low Time
Clock High Time
AUX Volume Control Range
DAC Volume Control Range
CPIN Volume Control Range
DD
= 3.3V, LS_V
Parameter
DD
= 3.3V. The following specifications apply for the circuit shown in Figure 2 unless
(Notes 1, 2) Unless otherwise stated PLL_V
A-weighted, AUXOUT
Min
Max
f
f
f
f
f
f
f
f
Min
Max
Refer to Pg. 18 for more details
Refer to Pg. 18 for more details
Minimum Gain w/ AUX_BOOST OFF
Maximum Gain w/ AUX_BOOST
OFF
Minimum Gain w/ AUX_BOOST ON
Maximum Gain w/ AUX_BOOST ON
Minimum Gain w/ DAC_BOOST OFF
Maximum Gain w/ DAC_BOOST
OFF
Minimum Gain w/ DAC_BOOST ON
Maximum Gain w/ DAC_BOOST ON
Minimum Gain
Maximum Gain
S
S
S
S
S
S
S
S
= 48kHz; 16 bit mode
= 48kHz; 25 bit mode
= 8kHz; 16 bit mode
= 8kHz; 25 bit mode
= 48kHz; 16 bit mode
= 48kHz; 25 bit mode
= 8kHz; 16 bit mode
= 8kHz; 25 bit mode
12
Conditions
DD
(Note 6)
Typical
–46.5
–34.5
–46.5
–34.5
–34.5
1.536
0.256
0.768
0.128
0.1
0.5
2.4
0.4
1.2
0.2
= 3.3V, D_V
20
70
88
96
30
50
12
12
12
1
0
0
LM4935
(Note 7)
Limit
100
300
100
100
100
100
500
500
DD
40
60
= 3.3V,
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
% (min)
(max)
Units
V
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RMS
%
%