SA58631 Datasheet, PDF (5/19 Pages) NXP Semiconductors – 3 W BTL audio amplifier

Philips Semiconductors
SA58631
3 W BTL audio amplifier
11. Static characteristics
Table 6: Static characteristics
V_CC = 5 V; T_amb = 25 °C; R_L = 8 Ω; V_MODE = 0 V; measured in test circuit Figure 3; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
V_CC
I_q
I_stb
V_O
| V_OUT+ − V_OUT− |
I_IB(IN+)
I_IB(IN−)
V_MODE
supply voltage
quiescent current
standby current
output voltage
differential output voltage offset
input bias current on pin IN+
input bias current on pin IN−
voltage on pin MODE
I_MODE
current on pin MODE
operating
R_L = ∞
V_MODE = V_CC
operating
mute
standby
0 V < V_MODE < V_CC
2.2
9
[1] _-
8
-
-
[2] _-
2.2
-
-
-
-
-
-
0
-
1.5
-
V_CC − 0.5 -
-
-
18
12
10
-
50
500
500
0.5
V_CC − 1.5
V_CC
20
Unit
V
mA
µA
V
mV
nA
nA
V
V
V
µA
[1] With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the DC output
offset voltage divided by R_L.
[2] The DC output voltage with respect to ground is approximately 0.5 × V_CC.
12. Dynamic characteristics
Table 7: Dynamic characteristics
V_CC = 5 V; T_amb = 25 °C; R_L = 8 Ω; f = 1 kHz; V_MODE = 0 V; measured in test circuit Figure 3; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
P_o
output power
THD + N = 10 %
THD + N = 0.5 %
1
1.2
-
W
0.6
0.9
-
W
THD + N = 10 %; V_CC = 9 V
-
THD + N
total harmonic distortion P_o = 0.5 W
-
plus noise
3.0
-
W
0.15
0.3
%
G_v(cl)
∆Z_i
closed-loop voltage gain
differential input
impedance
[1] ₆
-
-
30
dB
100
-
kΩ
V_n(o)
PSRR
noise output voltage
power supply rejection
ratio
[2] _-
-
[3] ₅₀
-
[4] ₄₀
-
100
µV
-
dB
-
dB
V_O
output voltage
mute condition
[5] _-
-
200
µV
[1] Gain of the amplifier is 2 × (R2 / R1) in test circuit of Figure 3.
[2] The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a source impedance
of R_S = 0 Ω at the input.
[3] Supply voltage ripple rejection is measured at the output with a source impedance of R_s = 0 Ω at the input. The ripple voltage is a
sine wave with a frequency of 1 kHz and an amplitude of 100 mV (RMS), which is applied to the positive supply rail.
[4] Supply voltage ripple rejection is measured at the output, with a source impedance of R_s = 0 Ω at the input. The ripple voltage is a
sine wave with a frequency between 100 Hz and 20 kHz and an amplitude of 100 mV (RMS), which is applied to the positive supply rail.
[5] Output voltage in mute position is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, which includes noise.
SA58631
Preliminary data sheet
Rev. 01 — 1 December 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
5 of 19