TDA8552T_02 Datasheet, PDF (13/27 Pages) NXP Semiconductors – 2 x 1.4 W BTL audio amplifiers with digital volume control and headphone sensing

NXP Semiconductors
2 x 1.4 W BTL audio amplifiers with digital
volume control and headphone sensing
Product specification
TDA8552T; TDA8552TS
AC CHARACTERISTICS (FOR HEADPHONE; R_L = 32 Ω; CONNECTED SE)
V_DD = 5 V; T_amb = 25 °C; f = 1 kHz; total gain setting at 20 dB; V_MODE = 0 V; gain select pin is 0 V
(maximum gain = 20 dB); according to Fig.4.
SYMBOL
P_o
THD
V_o(n)
SVRR
V_i(max)
α_cs
PARAMETER
output power
total harmonic distortion
noise output voltage
supply voltage ripple
rejection
maximum input voltage
channel separation
CONDITIONS
MIN.
THD = 10%; V_DD = 3.3 V −
THD = 10%; V_DD = 5.0 V −
THD = 0.5%; V_DD = 3.3 V −
THD = 0.5%; V_DD = 5.0 V −
P_o = 60 mW
−
note 1
−
note 2
50
THD = 1%;
−
G_v = −50 to 0 dB
50
TYP.
35
90
25
60
0.04
60
55
−
−
MAX.
−
−
−
−
−
100
−
UNIT
mW
mW
mW
mW
%
μV
dB
1.75
V
−
dB
Notes
1. The noise output voltage is measured at the output in a frequency band from 20 Hz to 20 kHz (unweighted),
R_source = 0 Ω, gain select pin is LOW (0 V).
2. Supply voltage ripple rejection is measured at the output, with a source impedance of R_source = 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) is applied to the
positive supply rail, gain select pin is LOW (0 V).
handbook, full pagewidth
VDD
Vth(UP)
Vfloat(max)
VUP/DOWN
Vfloat(min)
Vth(DOWN)
0
tr
trep
tw
increasing volume
floating
decreasing volume
t
tr
trep
tw
MGM611
The rise time (t_r) of the pulse may have any value.
Fig.3 Timing UP/DOWN pin.
2002 Jan 04
13