Texas Instruments LM49370RLEVAL Evaluation Board LM49370RLEVAL/NOPB LM49370RLEVAL/NOPB 데이터 시트
제품 코드
LM49370RLEVAL/NOPB
SNAS356D – FEBRUARY 2007 – REVISED MARCH 2012
Electrical Characteristics
(continued)
Unless otherwise stated PLL_V
DD
= 3.3V, D_V
DD
= 3.3V, BB_V
DD
= 1.8V, A_V
DD
= 3.3V, LS_V
DD
= 3.3V. The following
specifications apply for the circuit shown in
unless otherwise stated. Limits apply for 25°C.
LM49370
Symbol
Parameter
Conditions
Units
Limit
(4)
Typical
(3)
(5)
Chip Mode '10', f
MCLK
= 12MHz,
f
S
= 48kHz,
7.9
mA
DAC on; PLL off
Digital Playback Mode Digital
Active Current
Active Current
Chip Mode '10', f
MCLK
= 13MHz,
f
PLLOUT
= 12MHz, f
S
= 48kHz;
12.5
14.5
mA(max)
DAC + PLL on
Chip Mode '10', HP On, SE mode,
9.0
13.5
mA(max)
DAC inputs selected
Digital Playback Mode Analog
Chip Mode '10', HP On, OCL mode,
9.4
13.5
mA(max)
Active Current
DAC inputs selected
Chip Mode '10', LS On,
11.5
15.5
mA(max)
DAC inputs selected
Analog Playback Mode Digital Active
Chip Mode '10', f
MCLK
= 13MHz,
0.9
1.8
mA(max)
Current
DAC +ADC + PLL off
Chip Mode '10', HP On, SE mode,
5.9
9.5
mA(max)
AUX inputs selected
Analog Playback Mode Analog Active
Chip Mode '10', HP On, OCL mode,
6.3
9.7
mA(max)
Current
AUX inputs selected
Chip Mode '10', LS On,
8.4
12
mA(max)
AUX inputs selected
Chip Mode '10', f
MCLK
= 13MHz, f
S
=
CODEC Mode Digital Active Current
2.7
3.5
mA(max)
8kHz, DAC +ADC on; PLL Off
CODEC Mode Analog Active Current
Chip Mode '10', EP On,
11.2
15.5
mA(max)
DAC inputs selected
Voice Module Mode Digital Active
Chip Mode '10', f
MCLK
= 13MHz,
0.9
1.8
mA(max)
Current
DAC +ADC + PLL off
Voice Module Mode Analog Active
Chip Mode '10', EP + CPOUT on,
7.4
11
mA(max)
Current
CPIN input selected
LOUDSPEAKER AMPLIFIER
8
Ω
load, LS_V
DD
= 5V
1.2
W
P
LS
Max Loudspeaker Power
8
Ω
load, LS_V
DD
= 4.2V
0.9
W
8
Ω
load, LS_V
DD
= 3.3V
0.5
0.43
W (min)
8
Ω
load, LS_V
DD
= 3.3V,
LS
THD+N
Loudspeaker Harmonic Distortion
0.04
%
P
O
= 400mW
0 dB Input
LS
EFF
Efficiency
84
%
MCLK = 12.000 MHz
AUX inputs terminated
Power Supply Rejection Ration
C
BYPASS
= 1.0 µF
PSRR
LS
70
dB
(Loudspeaker)
V
RIPPLE
= 200 mV
P-P
f
RIPPLE
= 217 Hz
SNR
LS
Signal to Noise Ratio
From 0 dB Analog AUX input, A-weighted
90
80
dB(min)
e
N
Output Noise
(7)
A-weighted
62
µV
V
OS
Loudspeaker Offset Voltage
12
mV
(7)
Disabling or bypassing the PLL will usually result in an improvement in noise measurements.
Copyright © 2007–2012, Texas Instruments Incorporated
7
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