參數(shù)資料
型號(hào)： TS4956EKIJT
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 1.06 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA18
封裝： LEAD FREE, FCP-18
文件頁(yè)數(shù)： 19/19頁(yè)
文件大小： 1025K
代理商： TS4956EKIJT
TS4956
Electrical Characteristics
9/19
Table 10.
VCC = +3.3V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
ICC
Supply Current
No input signal, no load, Mode 1, 2
3.9
tbd
mA
No input signal, no load, Mode 3
5
tbd
No input signal, no load, Mode 4
4.9
tbd
No input signal, no load, Mode 5, 6
2.1
tbd
No input signal, no load, Mode 7
6.4
tbd
ISTBY
Standby Current
No input signal
0.8
2
A
VOO
Output Offset Voltage No input signal, RL =32, Phantom Ground
5
50
mV
Pout
Headphone Output
Power
THD+N = 1% max, F = 1kHz, RL =32, in
Phantom Ground mode
tbd
36
mW
THD+N = 1% max, F = 1kHz, RL =16, in
Phantom Ground mode
tbd
38
THD+N = 1% max, F = 1kHz, RL =8,
in BTL Output, Mode 7
tbd
455
Pout
Speaker Output
Power
Mode 1,2,7
THD+N = 1% max, F = 1kHz, RL =8
tbd
455
mW
MLO Output Power
Mode 5,6
THD+N = 1% max, F = 1kHz, RL =16
tbd
63
Mode 5,6
THD+N = 1% max, F = 1kHz, RL =32
tbd
37
THD+N
Total Harmonic
Distortion + Noise
G = +1.5dB, RL =32, Pout = 10mW,
20Hz < F < 20kHz, Phantom Ground
0.5
%
G = +1.5dB, RL =16, Pout = 15mW,
20Hz < F < 20kHz, Phantom Ground
0.5
PSRR
Power Supply
Rejection Ratio(1)
F = 217Hz, RL =16, G=+1.5dB
tbd
55
dB
Vripple = 200mVpp, Input Grounded, Cb = 1F
tbd
Crosstalk Channel Separation
RL = 32, with Phantom Ground
F=1kHz, Pout = 10mW
F = 20Hz to 20kHz, Pout = 10mW
55
50
dB
SNR
Signal To Noise Ratio
A-Weighted, G = +1.5dB, RL =32,
Pout = 14mW, Phantom Ground
80
dB
ONoise
Output Noise Voltage
A-Weighted, G = +1.5dB
Single-ended
Phantom Ground
tbd
Vrms
G
Digital Gain Range
-34.5
+12
dB
Digital Gain Stepsize
1.5
dB
Stepsize Error
0.1
0.6
dB
Zin
Input Impedance, all
Gain setting
25.5
30
34.5
k
Twu
Wake up time
80
TBD
ms
Tws
Standby time
1
TBD
s
1. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to VCC @ f = 217Hz.
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