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參數(shù)資料
型號(hào): TS4657IQT
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 2 CHANNEL, AUDIO AMPLIFIER, QCC20
封裝: 4 X 4 MM, ROHS COMPLIANT, QFN-20
文件頁(yè)數(shù): 26/26頁(yè)
文件大小: 1412K
代理商: TS4657IQT
TS4657
Electrical characteristics
9/26
THD+N: total harmonic distortion and noise-to signal-ratio is expressed in dB. It is given by:
where VHi is the rms value of the harmonic components.
SINAD: signal and noise distortion is expressed in dB. The equation is given by:
DR: dynamic range is expressed in dB, with the following equation:
3.4
Digital filter characteristics
THD
N
+
dB
10
VH
i
2
i2
=
k
V
noise
2
+
V
outrms
2
------------------------------------------------
log
=
SINAD
dB
10
V
outrms
2
VH
i
2
i2
=
k
V
noise
2
+
------------------------------------------------
log
=
DR
dB
10
VH
i
2
i1
=
k
V
noise
2
----------------------
log
=
Table 8.
VCC = 3.3 V T= 25° C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
-
Passband edge (-3 dB)
0.48Fs
-
Passband ripple f < 0.45 Fs
+/- 0.1
dB
-
Stopband attenuation f > 0.55 Fs
-50
dB
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