texet TF-127, Руководство по обслуживанию

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ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA6011A4
SLOS392A – FEBRUARY 2002 – REVISED JULY 2004
T
A
= 25
°
C, V
DD
= PV
DD
= 5.5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 5.5 V, Gain = 0 dB, SE/BTL = 0 V 30 mV
| V
OO
| Output offset voltage (measured differentially)
V
DD
= 5.5 V, Gain = 20 dB, SE/BTL = 0 V 50 mV
PSRR Power supply rejection ratio V
DD
= PV
DD
= 4.0 V to 5.5 V -42 -70 dB
High-level input current (SE/BTL, FADE, HP/LINE, V
DD
= PV
DD
= 5.5 V,
| I
IH
| 1 µA
SHUTDOWN, SEDIFF, SEMAX, VOLUME) V
I
= V
DD
= PV
DD
Low-level input current (SE/BTL, FADE, HP/LINE,
| I
IL
| V
DD
= PV
DD
= 5.5 V, V
I
= 0 V 1 µA
SHUTDOWN, SEDIFF, SEMAX, VOLUME)
V
DD
= PV
DD
= 5.5 V, SE/BTL = 0 V,
6.0 7.5 9.0
SHUTDOWN = 2 V
I
DD
Supply current, no load mA
V
DD
= PV
DD
= 5.5 V, SE/BTL = 5.5 V,
3.0 5 6
SHUTDOWN = 2 V
V
DD
= 5 V = PV
DD
, SE/BTL = 0 V,
I
DD
Supply current, max power into a 3-
Ω
load SHUTDOWN = 2 V, R
L
= 3
Ω
, 1.5 A
RMS
P
O
= 2 W, stereo
I
DD(SD)
Supply current, shutdown mode SHUTDOWN = 0.0 V 1 20 µA
T
A
= 25
°
C, V
DD
= PV
DD
= 5 V, R
L
= 3
Ω
, Gain = 6 dB (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
THD = 1%, f = 1 kHz 2
P
O
Output power W
THD = 10%, f = 1 kHz, V
DD
= 5.5 V 3
THD+N Total harmonic dist noise P
O
= 1 W, R
L
= 8
Ω
, f = 20 Hz to 20 kHz <0.4%
V
OH
High-level output voltage R
L
= 8
Ω
, Measured between output and V
DD
700 mV
V
OL
Low-level output voltage R
L
= 8
Ω
, Measured between output and GND 400 mV
V
(Bypass
Bypass voltage (Nominally V
DD
/2) Measured at pin 17, No load, V
DD
= 5.5 V 2.65 2.75 2.85 V
)
B
OM
Maximum output power bandwidth THD = 5% >20 kHz
BTL -63 dB
Supply ripple rejection ratio f = 1 kHz, Gain = 0 dB, C
(BYP)
= 0.47 µF
SE -57 dB
f = 20 Hz to20 kHz, Gain = 0 dB,
Noise output voltage BTL 36 µV
RMS
C
(BYP)
= 0.47 µF
Z
I
Input impedance (see Figure 26) VOLUME = 5.0 V 14 k
Ω
3