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LM4935 数据表(PDF) 9 Page - Texas Instruments

部件名 LM4935
功能描述  Audio Power Amplifier Series Audio Sub-System with Dual-Mode Stereo Headphone & Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM4935 数据表(HTML) 9 Page - Texas Instruments

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LM4935, LM4935RLEVAL
www.ti.com
SNAS296E – OCTOBER 2005 – REVISED MAY 2013
3.3
Electrical Characteristics
(1) (2) (3)
Unless otherwise stated PLL_VDD = 3.3V, D_VDD = 3.3V, BB_VDD = 1.8V, A_VDD = 3.3V, LS_VDD = 3.3V. The following
specifications apply for the circuit shown in Figure 2-2 unless otherwise stated. Limits apply for 25°C.
LM4935
Symbol
Parameter
Conditions
Units
Typical(4)
Limit(5)
DC CURRENT CONSUMPTION
Chip Mode '00', fMCLK = 13MHz
0.7
µA
DISD
Digital Shutdown Current(6)
Chip Mode '00', fMCLK = 19.2MHz
0.7
5
µA (max)
Chip Mode '01', fMCLK = 13MHz
1.5
mA
DIST
Digital Standby Current
Chip Mode '01', fMCLK = 19.2MHz
2.2
3
mA
(max)
Chip Mode '10', fMCLK = 13MHz,
1.5
mA
DAC, ADC, SAR OFF
Chip Mode '10', fMCLK = 19.2MHz,
2.2
mA
DAC, ADC, SAR OFF
DIDD
Digital Active Current
Chip Mode '10', fMCLK = 13MHz
11.2
mA
DAC, ADC, SAR ON
Chip Mode '10', fMCLK = 19.2MHz,
mA
16.2
20
DAC, ADC, SAR ON
(max)
AISD
Analog Shutdown Current
Chip Mode '00'
0.2
3
µA (max)
AIST
Analog Standby Current
Chip Mode '01',
0.2
3
µA (max)
No headset inserted
All Outputs OFF, SE MODE
6.1
mA
All Outputs OFF, OCL MODE
5.7
mA
AIDD
Analog Active Current
All Outputs ON, SE MODE
18.3
mA
All Outputs ON, OCL MODE
mA
18.7
28
(max)
fMCLK = 13 MHz
4.2
mA
fPLLOUT = 12 MHz, PLL ON only
PLLIDD
PLL Active Current
fMCLK = 19.2 MHz
6.2
mA
fPLLOUT = 12 MHz, PLL ON only
ADCIDD
fMCLK = 13MHz, ADC ON only
2.5
mA
ADC Active Current
fMCLK = 19.2MHz, ADC ON only
3.6
mA
fMCLK = 13MHz, DAC ON only;
7.4
mA
PLL OFF, fS = 48kHz
DACIDD
DAC Active Current
fMCLK = 19.2MHz, DAC ON only
10.7
mA
PLL OFF; fS = 48kHz
fMCLK = 13MHz, SAR ON only
1.6
mA
SARIDD
SAR Active Current
fMCLK = 19.2MHz, SAR ON only
2.3
mA
LSIDD
Loudspeaker Quiescent Current
LS ON only
8.8
mA
HP ON only, SE MODE
3.5
mA
HPIDD
Headphone Quiescent Current
HP ON only, OCL MODE
3.9
mA
EPIDD
Earpiece Quiescent Current
EP ON only
4.4
mA
AUXIDD
AUXOUT Quiescent Current
AUXOUT ON only
4.8
mA
CPOUTIDD
CPOUT Quiescent Current
CPOUT ON only
4.8
mA
(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 ensure specific performance limits. Characteristics state DC and AC electrical specifications
under particular test conditions which ensure specific performance limits. This assumes that the device is within the Operating Ratings.
Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication of device
performance.
(2)
All voltages are measured with respect to the relevant VSS pin unless otherwise specified. All grounds should be coupled as close as
possible to the device.
(3)
Best operation is achieved by maintaining 3.0V < A_VDD < 5.0 and 3.0V < D_VDD < 3.6V and A_VDD > D_VDD.
(4)
Typical values are measured at 25°C and represent the parametric norm.
(5)
Limits are specified to AOQL (Average Outgoing Quality Level).
(6)
Digital shutdown current is measured with system clock set for PLL output while the PLL is disabled.
Copyright © 2005–2013, Texas Instruments Incorporated
Electrical Specifications
9
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Product Folder Links: LM4935 LM4935RLEVAL


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