參數(shù)資料
型號(hào): 935261315112
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20
封裝: PLASTIC, SOT-163, SO-20
文件頁(yè)數(shù): 5/31頁(yè)
文件大?。?/td> 292K
代理商: 935261315112
1998 Jun 02
13
Philips Semiconductors
Preliminary specication
2
× 1.4 W BTL audio ampliers with digital
volume control and headphone sensing
TDA8552T; TDA8552TS
AC CHARACTERISTICS (FOR HEADPHONE; RL =32 ; CONNECTED SE)
VDD =5V; Tamb =25 °C; f = 1 kHz; total gain setting at 20 dB; VMODE = 0 V; gain select pin is 0 V
(maximum gain = 20 dB); according to Fig.4.
Notes
1. The noise output voltage is measured at the output in a frequency band from 20 Hz to 20 kHz (unweighted),
Rsource =0 , gain select pin is LOW (0 V).
2. Supply voltage ripple rejection is measured at the output, with a source impedance of Rsource =0 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).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Po
output power
THD = 10%; VDD = 3.3 V
35
mW
THD = 10%; VDD = 5.0 V
90
mW
THD = 0.5%; VDD = 3.3 V
25
mW
THD = 0.5%; VDD = 5.0 V
60
mW
THD
total harmonic distortion
Po =60mW
0.04
%
Vo(n)
noise output voltage
note 1
60
100
V
SVRR
supply voltage ripple
rejection
note 2
50
55
dB
Vi(max)
maximum input voltage
THD = 1%;
Gv = 50 to 0 dB
1.75
V
α
cs
channel separation
50
dB
Fig.3 Timing UP/DOWN pin.
The rise time (tr) of the pulse may have any value.
handbook, full pagewidth
MGM611
tr
VDD
VUP/DOWN
0
Vth(UP)
Vth(DOWN)
Vfloat(max)
Vfloat(min)
tw
increasing volume
decreasing volume
floating
trep
tr
t
tw
trep
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