TDA8547TS_15 Datasheet, PDF (8/21 Pages) NXP Semiconductors – 2 × 0.7 W BTL audio amplifier with output channel switching

NXP Semiconductors
2 × 0.7 W BTL audio amplifier with
output channel switching
Product specification
TDA8547TS
AC CHARACTERISTICS
V_CC = 5 V; T_amb = 25 °C; R_L = 8 Ω; f = 1 kHz; V_MODE = 0 V; gain = 20 dB; measured in BTL application circuit Fig.4;
unless otherwise specified.
SYMBOL
PARAMETER
P_o
output power, one channel
THD
G_v
Z_i
V_no
SVRR
total harmonic distortion
closed loop voltage gain
differential input impedance
noise output voltage
supply voltage ripple rejection
V_o
output voltage
α_cs
channel separation
CONDITIONS
MIN.
THD = 10%
1
THD = 0.5%
0.6
P_o = 0.4 W
−
note 1
6
−
note 2
−
note 3
50
note 4
40
note 5
−
V_SELECT = 0.5V_CC; note 6 40
TYP.
1.2
0.9
0.15
−
100
−
−
−
−
−
MAX.
−
−
0.3
30
−
100
−
−
200
−
UNIT
W
W
%
dB
kΩ
μV
dB
dB
μV
dB
Notes
1. Gain of the amplifier is 2 × ^R-----2-- in BTL application circuit Fig.4.
R1
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 a 1 V (RMS) input voltage in a bandwidth of 20 Hz to 20 kHz,
so including noise.
6. Channel separation is measured at the output with a source impedance of R_S = 0 Ω at the input and a frequency of
1 kHz. The output power in the operating channel is set to 0.5 W.
1998 Apr 01
8