![](https://csdnimg.cn/release/download_crawler_static/87238731/bg9.jpg)
LM4930
www.ti.com
SNAS212C –JULY 2003–REVISED MAY 2013
Electrical Characteristics DV
DD
= 3.3V, AV
DD
= 5V, R
LHP
= 32Ω, R
LHF
= 8Ω
(1)(2)(3)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A
= 25°C.
LM4930
Units
Parameter Test Conditions
(Limits)
Typ
(4)
Limits
(5)(6)
f
MCLK
= 12.288MHz
Output Mode = "0010"
Output Mode = "0011" 2
Output Mode = "0100"
Output Mode = "0101"
DI
DD
Digital Power Supply Current
Output Mode = "0110" 4.4
Output Mode = "0111"
Output Mode = "1000"
Output Mode = "1001" 4.9 8 mA (max)
Output Mode = "1010"
f
MCLK
= 12.288MHz; No Load
Output Mode = "0010" 7.0
Output Mode = "0011" 6.3
Output Mode = "0100" 8.0
Analog Power Supply Quiescent
Output Mode = "0101" 8.2
AI
DD
Current
Output Mode = "0110" 7.4
Output Mode = "0111" 8.7
Output Mode = "1000"
Output Mode = "1001" 9.5 14 mA (max)
Output Mode = "1010"
DI
SD
Digital Powerdown Current f
MCLK
= 12.288MHz 1 7 µA (max)
Output Mode = "0000" Powerdown Mode
AI
SD
Analog Powerdown Current f
MCLK
= 12.288MHz
1 2 µA (max)
Output Mode = "0000" Powerdown Mode
DI
ST
Digital Standby Current f
MCLK
= 12.288MHz
1.4 2 mA (max)
Output Mode = "0001" Standby Mode
AI
ST
Analog Standby Current f
MCLK
= 12.288MHz
230 1000 µA (max)
Output Mode = "0001" Standby Mode
V
FS_LS
Full-Scale Output Voltage CLASS = 0; 0dB gain setting; 8Ω BTL load
(7)
2.5 V
P-P
(Mono speaker amplifier)
V
FS_HP
Full-Scale Output Voltage 0dB gain setting; 32Ω Stereo Load
(7)
2.5 V
P-P
(Headphone amplifier)
V
MIC_BIAS
Mic Bias Voltage 2.0 V
THD+N Headphone Amplifier Total f
IN
= 1 kHz, P
OUT
= 7.5mW; 32Ω Stereo Load 0.07 %
Harmonic Motion Distortion + Noise
P
OHP
Headphone Amplifier Output Power THD+N = 0.5%, f
OUT
= 1kHz 27 20 mW (min)
P
OLS
Mono Speaker Amplifier Output THD+N = 1%, f
OUT
= 1kHz 1 W
Power
PSRR Power Supply Rejection Ratio C
BYPASS
= 1.0µF 55 45 dB (min)
C
DAC_REF
= 1.0µF
V
RIPPLE
= 200mV
P-P
@ 217Hz, MIC_P,
MIC_N terminated with 10Ω to ground
(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. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which specifies 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 GND pin unless otherwise specified.
(3) Best operation is achieved by maintaining 3.0V ≤ AV
DD
≤ 5.0 and 3.0V ≤ DV
DD
≤ 3.6V. AV
DD
must be equal to or greater than DV
DD
. for
proper operation.
(4) Typicals are measured at 25°C and represent the parametric norm.
(5) Limits are specified to Texas Instrument’s AOQL (Average Outgoing Quality Level).
(6) Datasheet min/max specification limits are ensured by design, test, or statistical analysis.
(7) This value represents the 0dB output level of the given amplifier for the given analog supply voltage. Gain values given in the
GAINCONFIG register are relative to these full-scale values for each output amplifier.
Copyright © 2003–2013, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Links: LM4930