lm4921itlx National Semiconductor Corporation, lm4921itlx Datasheet - Page 7

• Manufacturer Part Number: lm4921itlx
• Description: Low Voltage I2s 16-bit Stereo Dac With Stereo Headphone Power Amplifiers And Volume Control
• Manufacturer: National Semiconductor Corporation

I
f
f
V
V
t
t
t
t
t
t
t
t
f
t
t
t
t
t
t
t
2
MCLK
CONV
ES
EH
EL
DS
DH
CS
CH
CL
CLK
CLKI
HII
LOI
SLRCLK
HLRCLK
SDI
HDI
Symbol
S
IL
IH
Electrical Characteristics-Digital Inputs DV
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions
which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters
where no limit is given, however, the typical value is a good indication of device performance.
Note 2: All voltages are measured with respect to the GND pin, unless otherwise specified.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor.
Note 5: Machine Model, 220pF – 240pF discharged through all pins.
Note 6: Typicals are measured at 25°C and represent the parametric norm.
Note 7: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 8: Best operation is achieved by maintaining 3.0V
Note 9: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
2
2
S
2
2
S
S
S
2
S
Resolution
Audio Data Interface Format
Master Clock Frequency
Sampling Clock Frequency Range
Digital Input: Logic Low Voltage Level
Digital Input: Logic High Voltage
Level
SPI_ENB Setup Time
SPI_ENB Hold Time
SPI_ENB Low Time
SPI_Data Setup Time
SPI_Data Hold Time
SPI_CLK Setup Time
SPI_CLK High Pulse Width
SPI_CLK Low Pulse Width
SPI_CLK Frequency
I
I
I
I
I
I
I
I
2
2
2
2
2
2
2
2
S_CLK Period
S_CLK High Pulse Width
S_CLK Low Pulse Width
S_LRCLK Duty Cycle
S_LRCLK to I
S_LRCLK to I
S_Data to I
S_Data to I
Parameter
2
2
S_CLK Setup Time
S_CLK Hold Time
2
2
S_CLK Setup Time
S_CLK Hold Time
DMAX
= (T
JMAX
–T
A
)/θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
≤
AV
Standard, I
DD
≤
5.0V and 3.0V
2
S, Left Justified
Conditions
7
≤
DV
DD
DD
≤
5.0V.
= 3.0V
JMAX
, θ
JA
(Note 6)
11.2896
(256FS)
Typical
(Notes 1, 2)
, and the ambient temperature T
44.1
16
50
LM4921
(Notes 7, 9)
0.3 X DV
0.7 X DV
Limit
100
100
48
20
20
30
20
20
20
50
20
20
20
20
20
20
5
A
DD
DD
= 25°C.
A
. The maximum
www.national.com
MHz (max)
(Limits)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
V (max)
V (min)
Units
MHz
Bits
kHz
%