Philips TDA7050T, Техническое описание

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July 1994 4
Philips Semiconductors Product specification
Low voltage mono/stereo power amplifier TDA7050T
CHARACTERISTICS
V
P
=
3 V; f
=
1 kHz; R
L
=
32
Ω
; T
amb
=
25
°
C; unless otherwise specified
*
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).
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Supply
Supply voltage V
P
1,6
−
6,0 V
Total quiescent current I
tot
−
3,2 4 mA
Bridge-tied load application (BTL); see Fig.4
Output power
*
V
P
= 3,0 V; d
tot
= 10% P
o
−
140
−
mW
V
P
= 4,5 V; d
tot
= 10% (R
L
= 64
Ω
) P
o
−
150
−
mW
Voltage gain G
v
−
32
−
dB
Noise output voltage (r.m.s. value)
R
S
= 5 k
Ω
; f = 1 kHz V
no(rms)
−
140
− µ
V
R
S
= 0
Ω
; f = 500 kHz; B = 5 kHz V
no(rms)
−
tbf
− µ
V
D.C. output offset voltage (at R
S
= 5 k
Ω
) |
∆
V|
− −
70 mV
Input impedance (at R
S
=
∞
) |Z
i
| 1
− −
M
Ω
Input bias current I
i
−
40
−
nA
Stereo application; see Fig.5
Output power
*
V
P
= 3,0 V; d
tot
= 10% P
o
−
35
−
mW
V
P
= 4,5 V; d
tot
= 10% P
o
−
75
−
mW
Voltage gain G
v
24.5 26 27.5 dB
Noise output voltage (r.m.s. value)
R
S
= 5 k
Ω
; f = 1 kHz V
no(rms)
−
100
− µ
V
R
S
= 0
Ω
; f = 500 kHz; B = 5 kHz V
no(rms)
−
tbf
− µ
V
Channel separation
R
S
= 0
Ω
; f = 1 kHz
α
30 40
−
dB
Input impedance (at R
S
=
∞
) |Z
i
| 2
− −
M
Ω
Input bias current I
i
−
20
−
nA