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TS486 Datasheet, PDF (6/31 Pages) STMicroelectronics – 100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY MODE
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TS486-TS487
ELECTRICAL CHARACTERISTICS
VCC = +2.5V, GND = 0V, Tamb = 25°C (unless otherwise specified)1)
Symbol
Parameter
Min.
ICC
Supply Current
No input signal, no load
ISTANDBY
Standby Current
No input signal, VSTANDBY=GND for TS486, RL=32Ω
No input signal, VSTANDBY=Vcc for TS487, RL=32Ω
VIO
Input Offset Voltage (VICM = VCC/2)
IIB
Input Bias Current (VICM = VCC/2) 2)
Output Power
THD+N = 0.1% Max, F = 1kHz, RL = 32Ω
PO
THD+N = 1% Max, F = 1kHz, RL = 32Ω
THD+N = 0.1% Max, F = 1kHz, RL = 16Ω
THD+N = 1% Max, F = 1kHz, RL = 16Ω
THD + N
Total Harmonic Distortion + Noise (Av=-1)
RL = 32Ω, Pout = 10mW, 20Hz ≤ F ≤ 20kHz
RL = 16Ω, Pout = 16mW, 20Hz ≤ F ≤ 20kHz
PSRR
Power Supply Rejection Ratio, inputs grounded 3)
(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp
IO
Max Output Current
THD +N ≤ 1%, RL = 16Ω connected between out and VCC/2
Output Swing
VOL : RL = 32Ω
VO
VOH : RL = 32Ω
VOL : RL = 16Ω
VOH : RL = 16Ω
SNR
Signal-to-Noise Ratio (A weighted, Av=-1) 3)
(RL = 32Ω, THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)
Crosstalk
Channel Separation, RL = 32Ω, Av=-1
F = 1kHz
F = 20Hz to 20kHz
Channel Separation, RL = 16Ω, Av=-1
F = 1kHz
F = 20Hz to 20kHz
CI
Input Capacitance
GBP Gain Bandwidth Product (RL = 32Ω)
SR
Slew Rate, Unity Gain Inverting (RL = 16Ω)
1. All electrical values are guaranted with correlation measurements at 2V and 5V.
2. Only for external gain version.
3. Guaranteed by design and evaluation.
12.5
17.5
53
45
2.14
1.97
80
Typ.
1.7
10
1
90
13
14
21
22
0.3
0.3
58
56
0.25
2.25
0.35
2.15
95
80
76
77
69
1
1.1
0.4
Max.
2.5
1000
200
0.32
0.45
Unit
mA
nA
mV
nA
mW
%
dB
mA
V
dB
dB
pF
MHz
V/µs
6/31
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