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参数资料
| 型号： | TS4657IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2 CHANNEL, AUDIO AMPLIFIER, QCC20 |
| 封装： | 4 X 4 MM, ROHS COMPLIANT, QFN-20 |
| 文件页数： | 24/26页 |
| 文件大小： | 1412K |
| 代理商： | TS4657IQT |
TS4657
Electrical characteristics
7/26
3.3
DAC and output stage performances
Table 5.
VCC = 3.0 V to Vcc = 5.5 V, Rload = 10 kΩ Cload = 100 pF, T = 25° C
(unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Operating conditions
-
Audio data input format
16
24
bits
Fs
Sampling frequency
32
48
kHz
RL
Load resistor
5
10
k
Ω
CL
Load capacitance
100
150
pF
Digital input characteristics
VIL
Low-level input voltage
0.8
V
VIH
High-level input voltage
2
V
Dynamic parameters
VoutRMS
Full-scale output voltage swing
Vin at 0 dBFS; RL
≥ R
Lmin; CL=100 pF
2.1
2.2
Vrms
Table 6.
VCC = 3.3 V, Rload = 10 kΩ Cload = 100 pF, T = 25° C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Dynamic parameters
DR
Dynamic range. A-weighted
16-bit data; Vin at -60 dBFS, FS =48kHz, Fin = 1 kHz
88
93
dB
SNR
Signal-to-noise ratio, FS =48 kHz, Fin = 1 kHz, referred to
output
Vin at -6 dBFS; A-weighted, 18-bit data input
Vin at -6 dBFS; unweighted, 18-bit data input
Vin at 0 dBFS; A-weighted, 16-bit data input
89
87
94.5
92.5
93
dB
THD+N
Total harmonic distortion and noise. Fin = 1 kHz
Vin at -20 dBFS, 18-bit data input
Vin at -6 dBFS, 18-bit data input
Vin at 0 dBFS, 16-bit data input
74
72
82
81
dB
PSRR
Power supply rejection ratio, Vripple = 200 mVpp
F= 217 Hz
F= 1 kHz
20 Hz < F < 20 kHz
80
71
46
dB
LRiso
Channel separation. 1 kHz, Vin at 0 dBFS
100
dB
Voo
Output offset voltage
-20
20
mV
Gain channel balance
-0.2
0.01
0.2
dB
twu
Wake-up time
4.5
ms
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