TDA7050 Datasheet, PDF (4/8 Pages) NXP Semiconductors – Low voltage mono/stereo power amplifier

Philips Semiconductors
Low voltage mono/stereo power amplifier
Product specification
TDA7050
CHARACTERISTICS
V_P = 3 V; f = 1 kHz; R_L = 32 Ω; T_amb = 25 °C; unless otherwise specified
PARAMETER
SYMBOL MIN.
Supply
Supply voltage
Total quiescent current
Bridge-tied load application (BTL); see Fig.4
Output power; note 1
V_P = 3,0 V; d_tot = 10%
V_P = 4,5 V; d_tot = 10% (R_L = 64 Ω)
Voltage gain
Noise output voltage (r.m.s. value)
R_S = 5 kΩ; f = 1 kHz
R_S = 0 Ω; f = 500 kHz; B = 5 kHz
D.C. output offset voltage (at R_S = 5 kΩ)
Input impedance (at R_S = ∞)
Input bias current
Stereo application; see Fig.5
Output power; note 1
V_P = 3,0 V; d_tot = 10%
V_P = 4,5 V; d_tot = 10%
Voltage gain
Noise output voltage (r.m.s. value)
R_S = 5 kΩ; f = 1 kHz
R_S = 0 Ω; f = 500 kHz; B = 5 kHz
Channel separation
R_S = 0 Ω; f = 1 kHz
Input impedance (at R_S = ∞)
Input bias current
V_P
1,6
I_tot
−
P_o
−
P_o
−
G_v
−
V_no(rms) −
V_no(rms) −
|∆V|
−
|Z_i|
1
I_i
−
P_o
−
P_o
−
G_v
24.5
V_no(rms) −
V_no(rms) −
α
30
|Z_i|
2
I_i
−
TYP. MAX. UNIT
−
6,0
V
3,2
4
mA
140
−
mW
150
−
mW
32
−
dB
140
−
µV
tbf
−
µV
−
70
mV
−
−
MΩ
40
−
nA
35
−
mW
75
−
mW
26
27.5
dB
100
−
µV
tbf
−
µV
40
−
dB
−
−
MΩ
20
−
nA
Note
1. Output power is measured directly at the output pins of the IC. It is shown as a function of the supply voltage in Fig.2
(BTL application) and Fig.3 (stereo application).
June 1989
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