TDA7056AT_15 Datasheet, PDF (6/18 Pages) NXP Semiconductors – 3 W mono BTL audio amplifier with DC volume control

NXP Semiconductors
3 W mono BTL audio amplifier with DC
volume control
Product specification
TDA7056AT
CHARACTERISTICS
V_P = 12 V; V_DC = 1.4 V; f = 1 kHz; R_L = 16 Ω; T_amb = 25 °C; unless otherwise specified (see Fig.14).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supply
V_P
I_q(tot)
supply voltage
total quiescent current
R_L = ∞; note 1
4.5
−
−
8
18
V
16
mA
Maximum gain (V₇ = 1.4 V)
P_o
output power
THD = 10%; R_L = 16 Ω 3
3.5
−
W
THD
total harmonic distortion
P_o = 0.5 W
−
0.3
1
%
G_v(max) maximum total voltage gain
34.5 35.5
36.5 dB
V_i(rms)
input signal handling (RMS value) V_VC = 0.8 V; THD < 1% 0.5
0.65
−
V
V_n(o)(rms) noise output voltage (RMS value) f = 500 kHz; note 2
−
210
−
μV
B
bandwidth
at −1 dB
−
0.02 to 300 −
kHz
SVRR supply voltage ripple rejection
note 3
38
46
−
dB
⎪ΔV_OS⎪
Z_i
DC output offset voltage
input impedance (pin 3)
⎪V₁₇ − v₁₄⎪
−
0
15
20
150
mV
25
kΩ
Minimum gain (V₇ = 0.5 V)
G_v
voltage gain
V_o(n)(rms) noise output voltage (RMS value)
note 4
−
−44
−
20
−
dB
30
μV
Mute position
V_o(mute) output voltage in mute position
V_VC ≤ 0.3 V;
−
35
V_I = 600 mV; note 4
45
μV
DC volume control
ΔG_v
voltage gain control range
I_VC
control current
V_VC = 0 V
75
80
60
70
−
dB
80
μA
Notes
1. With a load connected to the outputs the quiescent current will increase, the maximum value of this increase being
equal to the DC output offset voltage divided by R_L.
2. The noise output voltage (V_n(o)(rms)) at f = 500 kHz, is measured with R_s = 0 Ω and B = 5 kHz.
3. The ripple rejection is measured with R_s = 0 Ω and f = 100 Hz to 10 kHz. The ripple voltage (V_ripple = 200 mV RMS)
is applied to the positive supply rail.
4. The noise output voltage (V_n(o)(rms)) is measured with R_s = 5 kΩ unweighted.
1998 Feb 23
6