TDA7056B 查看數據表（PDF） - Philips Electronics
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TDA7056B Datasheet PDF : 16 Pages
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Philips Semiconductors
5 W mono BTL audio amplifier with DC
volume control
Product specification
TDA7056B
CHARACTERISTICS
VP = 12 V; VDC = 1.4 V; f = 1 kHz; RL = 16 Ω; Tamb = 25 °C; unless otherwise specified (see Fig.13).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Supply
VP
Iq(tot)
positive supply voltage
total quiescent current
Maximum gain (V5 = 1.4 V)
PO
output power
THD
total harmonic distortion
Gv(max)
VI
Vno
B
maximum total voltage gain
input signal handling (RMS value)
noise output voltage (RMS value)
bandwidth
SVRR
∆VO
ZI
supply voltage ripple rejection
DC output offset voltage
input impedance (pin 3)
Mute position
VO
output voltage in mute position
DC volume control; note 5
φ
gain control
I5
control current
note 1; RL = ∞
4.5 −
−
9.2
18 V
13 mA
THD = 10%; RL = 16 Ω
3
3.5
THD = 10%; RL = 8 Ω
5
5.5
PO = 0.5 W
−
0.3
−
W
−
W
1
%
39.5 40.5
41.5 dB
Gv(max) = 0 dB; THD < 1% 1.0
−
note 2; f = 500 kHz
−
210
−
V
−
µV
at −1 dB
−
0.02 to 300 −
kHz
note 3
34 38
−
dB
V8 − v6
−
0
15 20
200 mV
25
kΩ
note 4; V5 ≤ 0.4 V;
VI = 1.0 V
−
35
45
µV
V5 = 0 V
68 73.5
−20 −25
−
dB
−30 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 RL.
2. The noise output voltage (RMS value) at f = 500 kHz is measured with RS = 0 Ω and B = 5 kHz.
3. The ripple rejection is measured with RS = 0 Ω and f = 100 Hz to 10 kHz. The ripple voltage VR of 200 mV
(RMS value) is applied to the positive supply rail.
4. The noise output voltage (RMS value) is measured with RS = 5 kΩ unweighted.
5. The DC volume control can be configured in several ways. Two possible circuits are shown in Figs 14 and 15.
The circuits at the volume control pin will influence the switch-on and switch-off behaviour and the maximum voltage
gain.
1997 Aug 15
5
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