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LM49321 データシート(PDF) 10 Page - Texas Instruments

部品番号 LM49321
部品情報  LM49321 Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Suppression
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM49321 データシート(HTML) 10 Page - Texas Instruments

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LM49321, LM49321RLEVAL
SNAS457C – SEPTEMBER 2008 – REVISED MAY 2013
www.ti.com
Digital Section Electrical Characteristics
(1)(2) (continued)
The following specifications apply for 3.0V
≤ AVDD ≤ 5.0V and 2.7V ≤ DVDD ≤ 4.0V, unless otherwise specified. Limits apply
for TA = 25°C.
LM49321
Units
Parameter
Test Conditions
(Limits)
Typ(3)
Limits(4)
tSPICL
SPI Clock Low Time
125
ns (max)
tSPICH
SPI Clock High Time
125
ns (max)
fCLKI2C
I2C_CLK Frequency
400
kHz (max)
tI2CHOLD
I2C_DATA Hold Time
100
ns (max)
tI2CSET
I2C_DATA Setup Time
100
ns (max)
0.7 x
VIH
I2C/SPI Input High Voltage
I2C_VDD
V (min)
I2C_VDD
0.3 x
VIL
I2C/SPI Input Low Voltage
0
V (max)
I2C_VDD
I2S(1.7V
≤ I/O_VDD ≤ 2.7V)
I2S_RESOLUTION = 1
1536
6144
kHz (max)
I2S_CLK Frequency
I2S_RESOLUTION = 0
3072
12288
kHz (max)
fCLKI2S
40
% (min)
I2S_WS Duty Cycle
50
60
% (max)
0.75
VIH
Digital Input High Voltage
V (min)
x I/O_VDD
0.25 x
VIL
Digital Input Low Voltage
V (max)
I/O_VDD
I2S(2.7V
≤ I/O_VDD ≤ 4.0V)
1536
6144
kHz (max)
I2S_CLK Frequency
I2S_RESOLUTION = 0
3072
12288
kHz (max)
fCLKI2S
40
%
I2S_WS Duty Cycle
I2S_RESOLUTION = 1
50
60
%
0.7 x
VIH
Digital Input High Voltage
V (min)
I/O_VDD
0.3 x
VIL
Digital Input Low Voltage
V (max)
I/O_VDD
Table 1. Output Noise AVDD = 5.0V and AVDD = 3.0V. All gains set to 0dB. Units in μV, A-weighted, Inputs
terminated to ground.
MODE
EP
LS
HP OCL
Units
1
22
22
8
μV
2
22
22
8
μV
3
22
22
8
μV
4
68
88
46
μV
5
38
48
24
μV
6
29
34
18
μV
7
38
48
24
μV
Table 2. VPSRR AVDD = 3.0V, fRIPPLE = 217Hz; VRIPPLE = 200mVP-P; CB = 2.2μF; All gains set to 0dB.
MODE
EP(Typ)
LS (Typ)
LS (Limit)
HP (Typ)
HP (Limit)
Units
1
69
76
72
dB
2
69
76
67
72
68
dB
3
69
76
72
dB
4
63
62
55
dB
5
69
68
61
dB
6
69
70
64
dB
7
69
68
61
dB
10
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Copyright © 2008–2013, Texas Instruments Incorporated
Product Folder Links: LM49321 LM49321RLEVAL


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