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TPA2050D4YZKT Scheda tecnica(PDF) 7 Page - Texas Instruments

Il numero della parte TPA2050D4YZKT
Spiegazioni elettronici  1.4 W/CH STEREO CLASS-D AUDIO SUBSYSTEM WITH DirectPath??HEADPHONE AMPLIFIER AND 2:1 INPUT MUX
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

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OPERATING CHARACTERISTICS
TPA2050D4
www.ti.com....................................................................................................................................................................................................... SLOS544 – JULY 2008
VDD = 3.6 V, TA = 25°C, RSPEAKER = 8 Ω + 33 µH, RHEADPHONES = 16 Ω, Volume = 6 dB, HP Gain = 0 dB, MODE[2:0] = 001
(single-ended mode)(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER AMPLIFIER
THD = 1%, VDD = 3.6 V, f = 1 kHz
700
mW
PO
Speaker output power
THD = 10%, VDD = 3.6 V, f = 1 kHz
860
mW
THD = 1%, VDD = 4.2 V, f = 1 kHz
940
mW
VOS
Offset Voltage
VDD = 5.5 V, Volume = 0 dB
-13
5
13
mV
Output impedance in shutdown
2
k
SNR
Signal-to-noise ratio
PO = 600 mW;
90
dB
En
Noise output voltage
Volume = 0 dB; A-weighted
19.4
µV
RMS
VDD = 5.0 V, PO = 1 W, f = 1 kHz
0.22
%
THD+N
Total harmonic distortion plus noise
VDD = 3.6 V, PO = 0.6 W, f = 1 kHz
0.27
%
200 mVpp ripple, f = 217 Hz, Volume = 0 dB
-77.7
dB
kSVR
AC-Power supply rejection ratio
200 mVpp ripple, f = 4 kHz, Volume = 0 dB
-60.3
dB
Threshold
155
°C
Thermal shutdown
Hysteresis
35
°C
Output short-circuit protection
2.4
A
fCLK
Class-D switching frequency
250
300
350
kHz
ΔAV
Gain matching
Between left and right channels
0.1
dB
HEADPHONE AMPLIFIER
THD = 1%, VDD = 5.0 V, HP_Vout[2:0] = 000
145
Headphone output power(1)
PO
mW
(Outputs in Phase)
THD = 1%, VDD = 3.0 V, HP_Vout[2:0] = 000
79
THD = 10 %, HP_VOUT[2:0] = 111
0.14
VO
Maximum headphone output voltage
VRMS
THD = 10 %, HP_VOUT[2:0] = 100
0.23
VOS
Offset Voltage
VDD = 5.5 V, Volume = 0 dB
-3.5
0.5
3.5
mV
Output impedance in shutdown
30
SNR
Signal-to-noise ratio
PO = 50 mW;
90
dB
En
Noise output voltage
Volume = 0 dB; A-weighted, VDD = 5.0 V
12
µV
RMS
PO = 20 mW into 16 Ω, VDD = 3.6 V, f = 1 kHz
0.005
%
THD+N
Total harmonic distortion plus noise(1)
PO = 50 mW into 32 Ω, VDD = 5.0 V, f = 1 kHz
0.0067
%
200 mVpp ripple, f = 217 Hz, Volume = 0 dB
-78.5
dB
kSVR
AC-Power supply rejection ratio
200 mVpp ripple, f = 4 kHz, Volume = 0 dB
-75.6
dB
Output short-circuit protection
200
mA
fOSC
Charge pump switching frequency
300
kHz
ΔAV
Gain matching
Between Left and Right channels
0.1
dB
INPUT SECTION
RIN
Input impedance
Volume = 12 dB
11
14.7
k
VREF
Reference voltage
VDD = 3.6 V, all active modes
1.65
V
Start-up time from shutdown
8.25
ms
(1)
Per output channel
Copyright © 2008, Texas Instruments Incorporated
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