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TPA3251D2 Scheda tecnica(PDF) 8 Page - Texas Instruments

Il numero della parte TPA3251D2
Spiegazioni elettronici  TPA3251D2 175-W Stereo, 350-W Mono PurePath??Ultra-HD Analog-Input Class-D Amplifier
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TPA3251D2 Scheda tecnica(HTML) 8 Page - Texas Instruments

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TPA3251D2
SLASE40C – JUNE 2015 – REVISED JUNE 2015
www.ti.com
Electrical Characteristics (continued)
PVDD_X = 36 V, GVDD_X = 12 V, VDD = 12 V, TC (Case temperature) = 75°C, fS = 600 kHz, unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
STATIC DIGITAL SPECIFICATIONS
VIH
High level input voltage
1.9
V
M1, M2, OSC_IOP, OSC_IOM, RESET
VIL
Low level input voltage
0.8
V
Ilkg
Input leakage current
100
μA
OTW/SHUTDOWN (FAULT)
Internal pullup resistance, CLIP_OTW to
RINT_PU
20
26
32
k
DVDD, FAULT to DVDD
VOH
High level output voltage
Internal pullup resistor
3
3.3
3.6
V
VOL
Low level output voltage
IO = 4 mA
200
500
mV
Device fanout
CLIP_OTW, FAULT
No external pullup
30
devices
7.6 Audio Characteristics (BTL)
PCB and system configuration are in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 36 V,
GVDD_X = 12 V, RL = 4 Ω, fS = 600 kHz, ROC = 22 kΩ, TC = 75°C, Output Filter: LDEM = 10 μH, CDEM = 1 µF, mode = 00,
AES17 + AUX-0025 measurement filters,unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RL = 3 Ω, 10% THD+N
220
RL = 4 Ω, 10% THD+N
175
PO
Power output per channel
W
RL = 3 Ω, 1% THD+N
175
RL = 4 Ω, 1% THD+N
140
THD+N
Total harmonic distortion + noise
1 W
0.005%
A-weighted, AES17 filter, Input Capacitor
Vn
Output integrated noise
60
μV
Grounded
|VOS|
Output offset voltage
Inputs AC coupled to GND
20
60
mV
SNR
Signal-to-noise ratio(1)
111
dB
DNR
Dynamic range
115
dB
Pidle
Power dissipation due to Idle losses (IPVDD_X)
PO = 0, 4 channels switching
(2)
1
W
(1)
SNR is calculated relative to 1% THD+N output level.
(2)
Actual system idle losses also are affected by core losses of output inductors.
8
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