TDA8551_T_15 Datasheet, PDF (6/18 Pages) NXP Semiconductors – 1 W BTL audio amplifier with digital volume control

NXP Semiconductors
1 W BTL audio amplifier with digital volume
control
Product specification
TDA8551
CHARACTERISTICS
V_P = 5 V; T_amb = 25 °C; R_L = 8 Ω; V_MODE = 0 V; total gain setting at +7 dB (unless otherwise specified); measured in
test circuit of Fig.4.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
DC characteristics
V_P
I_q
I_stb
V_O
⎪V_OUT+ − V_OUT−⎪
supply voltage
quiescent current
standby current
DC output voltage
differential output offset
Mode select pin
V_MODE
input voltage
I_MODE
α
input current
mute attenuation
Volume control
t_rep
V_th(UP)
V_float(max)
V_float(min)
V_th(DOWN)
I_UP/DOWN
G_v(max)
pulse repetition time
UP/DOWN pin up threshold level
UP/DOWN pin floating high level
UP/DOWN pin floating low level
UP/DOWN pin down threshold level
input current UP/DOWN pin
maximum voltage gain (including
power amplifier)
G_v(min)
minimum voltage gain (including
power amplifier)
n_vol
ΔG_v
Z_i
V_i(rms)(max)
number of volume steps
voltage gain variation per step
input impedance
maximum input voltage (RMS value)
AC characteristics (f = 1 kHz)
P_o
output power
THD
V_n(o)
SVRR
V_i(IN)(max)
total harmonic distortion
noise output voltage
supply voltage ripple rejection
maximum input voltage on pin IN
R_L = ∞; note 1
V_MODE = V_P
note 2
standby mode
mute mode
operating mode
0 < V_MODE < V_P
note 3
0 < V_UP/DOWN < V_P
THD = 10%
THD = 0.5%
P_o = 0.5 W; note 4
note 5
note 6
THD = 1%;
G_v = −50 dB
to 0 dB
2.7
−
−
−
−
V_P − 0.5
1
0
−
80
100
4.2
−
1.0
0
−
19
−62
−
−
14
−
1
0.6
−
−
48
−
5
6
−
2.5
−
−
−
−
−
90
−
−
−
−
−
−
20
−60
64
1.25
20
−
1.4
1.0
0.15
60
53
−
5.5
V
10
mA
10
μA
−
V
50
mV
V_P
V
V_P − 1.4 V
0.5
V
100
nA
−
dB
−
ns
V_P
V
3.4
V
−
V
0.6
V
200
μA
21
dB
−58
dB
−
−
dB
−
kΩ
2.0
V
−
W
−
W
0.5
%
100
μV
−
dB
2.0
V
1998 Feb 23
6