TDA8552T Datasheet, PDF (11/28 Pages) NXP Semiconductors – 2 x 1.4 W BTL audio amplifiers with digital volume control and headphone sensing

Philips Semiconductors
2 × 1.4 W BTL audio amplifiers with digital
volume control and headphone sensing
Preliminary specification
TDA8552T; TDA8552TS
AC CHARACTERISTICS (V_DD = 3.3 V)
T_amb = 25 °C; R_L = 8 Ω; f = 1 kHz; total gain setting at 7 dB; V_MODE = 0 V; gain select pin is at 0 V
(maximum gain = 20 dB); according to Fig.4.
SYMBOL
P_o
THD
V_o(n)
SVRR
V_i(max)
α_sup
α_cs
PARAMETER
output power
total harmonic distortion
noise output voltage
supply voltage ripple
rejection
maximum input voltage
channel suppression
channel separation
CONDITIONS
THD = 10%; R_L = 4 Ω
THD = 10%; R_L = 8 Ω
THD = 10%; R_L = 16 Ω
THD = 0.5%; R_L = 4 Ω
THD = 0.5%; R_L = 8 Ω
THD = 0.5%; R_L = 16 Ω
P_o = 0.1 W; note 1
note 2
note 3
MIN.
−
−
−
−
−
−
−
−
tbf
THD = 1%;
−
G_v = −50 to 0 dB
V_HPS = V_DD; note 4
−
−
TYP.
0.9
0.6
0.3
0.6
0.4
0.2
0.1
60
55
−
80
55
MAX.
−
−
−
−
−
−
−
−
−
UNIT
W
W
W
W
W
W
%
µV
dB
1.1
V
−
dB
−
dB
Notes
1. Volume setting at maximum.
2. 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).
3. 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).
4. Channel suppression is measured at the output with a source impedance of R_source = 0 Ω at the input and a
frequency of 1 kHz. The output level in the operating single-ended channel (OUT+) is set at 2 V (RMS).
1998 Jun 02
11