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參數(shù)資料
| 型號(hào)： | TS4975EIJT |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus |
| 中文描述： | 立體聲耳機(jī)驅(qū)動(dòng)集成電路放大器通過總線與數(shù)字音量控制 |
| 文件頁數(shù)： | 5/33頁 |
| 文件大?。?/td> | 747K |
| 代理商： | TS4975EIJT |
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TS4975
Electrical Characteristics
5/33
Table 5.
V
CC
= +2.5 V, GND = 0V, T
amb
= 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load, Single Ended, Mode 1-4
No input signal, no load, Single Ended, Mode 5-8
No input signal, no load, Phantom Ground, Mode 1-4
No input signal, no load, Phantom Ground, Mode 5-8
3
2
4.6
3.6
4.2
2.8
6.5
5.3
mA
I
STANDBY
Standby Current (SCL and SDA at VCC level)
No input signal
0.6
2
μA
Voo
Output Offset Voltage
No input signal, RL = 32
,
Phantom Ground
5
50
mV
Po
Output Power
THD+N = 1% Max, f = 1kHz, RL = 16
, Single Ended
THD+N = 1% Max, f = 1kHz, RL = 32
, Single Ended
THD+N = 1% Max, f = 1kHz, RL = 16
, Phantom Ground
THD+N = 1% Max, f = 1kHz, RL = 32
, Phantom Ground
15
11
15
11
21
13
21
13
mW
THD + N
Total Harmonic Distortion + Noise, Av = 2dB
RL=32
,
Po=10 mW,
20Hz < F < 20kHz, Single Ended
RL=16
,
Po=15 mW, 20Hz < F < 20kHz, Single Ended
RL=32
,
Po=10 mW,
20Hz < F < 20kHz, Phantom Ground
RL=16
,
Po=15 mW, 20Hz < F < 20kHz, Phantom Ground
0.3
0.3
0.3
0.3
%
PSRR
Power Supply Rejection Ratio
(1)
F = 217Hz, RL = 16
,
Av = 2 dB
Vripple = 200mVpp, Input Grounded, Cb = 1μF,
Single Ended
Output referenced to Phantom Ground
F = 217Hz, RL = 16
,
Av = 2 dB
Vripple = 200mVpp, Input Grounded, Cb = 1μF,
Single Ended
Output referenced to Ground
60
60
dB
Crosstalk
Channel Separation, RL = 32
,
Av = 2 dB with Single Ended
F = 1kHZ, Po=10mW
F = 20Hz to 20kHz, Po=10mW
Channel Separation, RL = 32
,
Av = 2 dB with Phantom Ground
F = 1kHZ, Po=10mW
F = 20Hz to 20kHz, Po=10mW
103
75
69
69
dB
SNR
Signal To Noise Ratio, A-Weighted, Av=2dB, RL=32
,
Po=12mW
Single Ended
Phantom Ground
88
88
dB
ONoise
Output Noise voltage, A-Weighted, Av=2dB
Single Ended
Phantom Ground
23
23
μVrms
G
Digital Gain Range In1 & In2 to Out1 & Out2
-34
+18
dB
Digital Gain Stepsize
4
dB
Gain error tolerance
-1
+1
dB
Zin
In1 & In2 Input Impedance, All Gain setting
25.5
30
34.5
k
Twu
Wake up time, Cb=1μF
110
180
ms
Tws
Standby time
1
μs
1.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ F = 217Hz
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