TDA8929T Datasheet, PDF (14/36 Pages) NXP Semiconductors – Controller class-D audio amplifier

Philips Semiconductors
Controller class-D audio amplifier
Preliminary specification
TDA8929T
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
SVRR
Z_i
V_n(o)
V_o
CMRR
supply voltage ripple rejection
input impedance
noise output voltage
output signal
common mode rejection ratio
on; f_i = 100 Hz; note 3
−
on; f_i = 1 kHz; note 3
36
mute; f_i = 100 Hz; note 3
−
standby; f_i = 100 Hz; note 3
−
23
on; R_s = 0 Ω; B = 22 Hz to 22 kHz −
on; R_s = 10 kΩ; B = 22 Hz to 22 kHz −
mute; note 4
−
mute; V_i = V_i(max) = 1 V (RMS)
−
V_i = 1 V (RMS)
−
49
−
dB
44
−
dB
49
−
dB
80
−
dB
34
−
kΩ
280 500 µV
300 −
µV
280 −
µV
−
500 µV
75
−
dB
Notes
1. V_P = ±25 V; f_i = 1 kHz; T_amb = 25 °C; measured in Fig.10; unless otherwise specified.
2. THD is measured in a bandwidth of 22 Hz to 22 kHz. When distortion is measured using a low-order low-pass filter
a significantly higher value will be found, due to the switching frequency outside the audio band.
3. V_ripple = V_ripple(max) = 2 V (p-p); R_s = 0 Ω.
4. B = 22 Hz to 22 kHz and independent of R_s.
5. V_P = ±25 V; f_i = 1 kHz; T_amb = 25 °C; measured in reference design in Fig.12; unless otherwise specified.
handbook, full pagewidth
on
mute
standby
Vth1_−
Vth1₊
VMODE(hys1)
Vth2_−
Vth2₊
VMODE(hys2)
Fig.6 Mode pin selection.
VMODE
MGW334
2001 Dec 11
14