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LM4936 Scheda tecnica(PDF) 5 Page - Texas Instruments

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Il numero della parte LM4936
Spiegazioni elettronici  Boomer??Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C)
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LM4936
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SNAS269A – APRIL 2005 – REVISED APRIL 2013
Electrical Characteristics for Control Interface
(1) (2)
The following specifications apply for VDD = 5V, VDD = 3V and 2.4V ≤ I
2C/SPI V
DD ≤ 5.5V. Limits apply for TA = 25°C.
LM4936
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)
t1
SCL period
2.5
μs (min)
t2
SDA Set-up Time
100
ns (min)
t3
SDA Stable Time
0
ns (min)
t4
Start Condition Time
100
ns (min)
t5
Stop Condition Time
100
ns (min)
VIH
Digital Input High Voltage
0.7 X
V (min)
I2C/SPIVDD
VIL
Digital Input Low Voltage
0.3 X
V (max)
I2C/SPIVDD
tES
SPI ENABLE Setup Time
50
ns (min)
tEH
SPI ENABLE Hold Time
50
ns (min)
tEL
SPI ENABLE High Time
50
ns (min)
tDS
SPI DATA Setup Time
50
ns (min)
tDH
SPI DATA HOLD Time
50
ns (min)
tCS
SPI CLOCK Setup Time
50
ns (min)
tCH
SPI CLOCK High Pulse Width
100
ns (min)
tCL
SPI CLOCK Low Pulse Width
100
ns (min)
fCLK
SPI CLOCK Frequency
5
MHz (max)
(1)
All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical
application as shown in Figure 2.
(2)
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 ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified
by design, test, or statistical analysis.
Electrical Characteristics for Single-Ended Mode Operation
(1) (2)
The following specifications apply for VDD = 5V. Limits apply for TA = 25°C.
LM4936
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)
PO
Output Power
THD = 1%; f = 1kHz; RL = 32Ω
90
mW
THD = 10%; f = 1 kHz; RL = 32Ω
110
mW
THD+N
Total Harmonic Distortion+Noise
POUT = 20mW, f = 1kHz, RL = 32Ω,
0.02
%
AVD = 1, 80kHz BW
PSRR
Power Supply Rejection Ratio
CB = 1μF, f = 120Hz,
57
dB
Input Terminated
VRIPPLE = 200mVp-p
NOUT
Output Noise
A-Wtd Filter
18
µV
Xtalk
Channel Separation(5)
f = 1kHz, CB = 1μF
63
dB
(1)
All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical
application as shown in Figure 2.
(2)
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 ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified
by design, test, or statistical analysis.
(5)
PCB design will affect Crosstalk performance.
Copyright © 2005–2013, Texas Instruments Incorporated
Submit Documentation Feedback
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