lm4934rlx National Semiconductor Corporation, lm4934rlx Datasheet - Page 8

• Manufacturer Part Number: lm4934rlx
• Description: 3d Audio Sub-system With Stereo Speaker, Ocl/se Stereo Headphone, Earpiece And Mono Line Level Outputs
• Manufacturer: National Semiconductor Corporation

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