TS4855_04 Datasheet, PDF (15/27 Pages) STMicroelectronics – LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL

Electrical Characteristics
Figure 31: HDout PSRR vs. frequency
(Output modes 4, 5 inputs grounded)
0
Output mode 4, 5
-10 Vcc=+5V
RL = 32Ω
-20 ^{Vripple=0.2Vpp}
Tamb = 25°C
-30
G=-34.5dB
G=-12dB
-40
G=+12dB
-50
G=0dB
G=+6dB
G=+9dB
-60
100
1000
10000
100000
Frequency (Hz)
Figure 32: HDout PSRR vs. frequency
(Output modes 4, 5 inputs grounded)
0
Output mode 4, 5
-10 Vcc=+3V
RL = 32Ω
Vripple=0.2Vpp
-20 _{Tamb = 25°C}
-30
-40
G=+12dB
-50
G=-34.5dB
G=-12dB
G=0dB
G=+9dB
G=+6dB
-60
100
1000
10000
Frequency (Hz)
100000
Figure 33: HDout PSRR vs. frequency
(Output modes 6, 7 inputs grounded)
0
Output mode 6, 7
-10 ^Vcc=+5V
RL = 32Ω
Vripple=0.2Vpp
-20 _{Tamb = 25°C}
G1=-40.5dB
G2=-34.5dB
G1=-18dB
G1=+3dB ^G2=-12dB
G2=+9dB
-30
G1=-6dB
G1=+6dB ^G1=0dB G2=0dB
-40 _G2=+12dB G2=+6dB
-50
-60
100
1000
10000
Frequency (Hz)
100000
TS4855
Figure 34: HDout PSRR vs. frequency
(Output modes 6, 7 inputs grounded)
0
Output mode 6, 7
-10 ^Vcc=+3V
RL = 32Ω
Vripple=0.2Vpp
-20 Tamb = 25°C
G1=-40.5dB
G2=-34.5dB
G1=-18dB
G1=+3dB ^G2=-12dB
G2=+9dB
-30
G1=-6dB
G1=+6dB ^G1=0dB G2=0dB
G2=+12dB ^G2=+6dB
-40
-50
100
1000
10000
Frequency (Hz)
100000
Figure 35: Spkout mute attenuation vs.
frequency (Output modes 2, 4, 6)
0
-10
Ouput mode 2, 4, 6
RL = 8Ω
-20
VinPIHF=1Vrms
-30
BW < 125kHz
Tamb = 25°C
-40
-50
-60
Vcc=3V
-70
Vcc=5V
-80
-90
-100
100
1000
Frequency (Hz)
10000
Figure 36: Spkout frequency response
(Output modes 1, 3, 5, 7)
12
10
8
6
4
2
0
20
Vcc=3V
Vcc=5V
Ouput mode 1, 3, 5, 7
RL = 8Ω
Cin=220nF
VinPIHF=0.2Vrms
BW < 125kHz
Tamb = 25°C
100
1000
Frequency (Hz)
10000
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