lm4921itlx National Semiconductor Corporation, lm4921itlx Datasheet - Page 6

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

www.national.com
DV
AV
DI
AI
I
I
V
THD+N
P
PSRR
SNR
DR
ΔA
X
SD
SB
Symbol
FS
O
TALK
DD
Electrical Characteristics DV
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for T
DD
DD
CH-CH
DD
Digital Power Supply Voltage
Analog Power Supply Voltage
Digital Power Supply Quiescent
Current
Analog Power Supply Quiescent
Current
Total Shutdown Power Supply
Current
Standby Current
Full-Scale Output Voltage
Total Harmonic Distortion + Noise
Headphone Amplifier Output Power THD = (0.5%), f
Power Supply Rejection Ratio
Signal-to-Noise Ratio
Dynamic Range
Channel-to-Channel Gain Mismatch f
Channel-to-Channel Crosstalk
Volume Control Range
Volume Control Control Step Size
Mute Attenuation
Parameter
Note 8
Note 8
R
R
SHUTDOWN SPI bits 1 & 2 set to
logic 0,
SPI, M
Analog and Digital together
All clocks off
Gain set at max
f
(Vol Cont = 11011, I
12mW at output)
AV
V
f
A-weighted-f
f
A-weighted
f
f
Minimum Attenuation
Maximum Attenuation
IN
IN
IN
IN
CONV
IN
DD
RIPPLE
Load
Load
= 1kHz, P
DD
= 1kHz sinewave at -60dB
= 1kHz sinewave at -60dB
= 1kHz
= 1kHz sinewave at -3dB
= 3.0V, AV
=
=
= 44.1kHz,
C
CLK
BYPASS
∞
∞
= 200mV
, f
, f
and I
MLCK
MCLK
Conditions
CONV
OUT
= 2.0µF
2
OUT
6
= 11.2896MHz
= 0MHz
S inputs at GND
= 12mW
P-P
= 44.1kHz
2
= 1kHz
S input adj to get
217Hz
DD
= 3.0V, R
FS
FS
FS
,
,
(Note 6)
Typical
-43.5
L
0.05
0.06
-100
3.0
3.0
3.5
2.6
1.5
15
26
52
79
81
72
5
1
0
= 32Ω
LM4921
(Notes 7, 9)
(Notes 1, 2)
Limit
7.5
9.0
A
= 25°C.
mA (max)
mA (max)
mW (min)
uA(max)
dB (min)
(Limits)
Units
V
uA
dB
dB
dB
dB
dB
dB
dB
dB
%
V
V
P-P