TS4998 Просмотр технического описания (PDF) - STMicroelectronics
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TS4998 Datasheet PDF : 33 Pages
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TS4998
3
Electrical characteristics
Electrical characteristics
Table 4. VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min. Typ. Max.
Unit
ICC
ISTBY
Voo
Po
THD + N
PSRR
Supply current
No input signal, no load, left and right channel active
Standby current (1)
No input signal, VSTBYL = GND, VSTBYR = GND, RL = 8Ω
Output offset voltage
No input signal, RL = 8Ω
Output power
THD = 1% max, F = 1kHz, RL = 8Ω
Total harmonic distortion + noise
Po = 700mWrms, G = 6dB, RL = 8Ω, 20Hz ≤ F ≤ 20kHz
Power supply rejection ratio(2), inputs grounded
RL = 8Ω, G = 6dB, Cb = 1µF, Vripple = 200mVpp
F = 217Hz
F = 1kHz
7.4 9.6
mA
10 2000
nA
1
35
mV
800 1000
mW
0.5
%
dB
80
75
CMRR
Common mode rejection ratio(3)
RL = 8Ω, G = 6dB, Cb = 1µF, Vincm = 200mVpp
F = 217Hz
F = 1kHz
dB
57
57
SNR
Signal-to-noise ratio
A-weighted, G = 6dB, Cb = 1µF, RL = 8Ω
(THD + N ≤ 0.5%, 20Hz < F < 20kHz)
108
dB
Channel separation, RL = 8Ω, G = 6dB
Crosstalk F = 1kHz
F = 20Hz to 20kHz
105
dB
80
VN
Gain
Output voltage noise, F = 20Hz to 20kHz, RL = 8Ω, G=6dB
Cb = 1µF
Unweighted
A-weighted
Gain value (RIN in kΩ)
4-----0-----k---Ω--
RIN
15
10
5-----0-----k---Ω--
RIN
6-----0-----k---Ω--
RIN
µVrms
V/V
tWU Wake-up time (Cb = 1µF)
46
ms
tSTBY Standby time (Cb = 1µF)
10
µs
ΦM
Phase margin at unity gain
RL = 8Ω, CL = 500pF
65
Degrees
GM Gain margin, RL = 8Ω, CL = 500pF
15
dB
GBP Gain bandwidth product, RL = 8Ω
1.5
MHz
1. Standby mode is active when VSTBY is tied to GND.
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon VCC.
3. Dynamic measurements - 20*log(rms(Vout)/rms(Vincm)).
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