TS4975EIJT STMicroelectronics, TS4975EIJT Datasheet - Page 20

• Manufacturer Part Number: TS4975EIJT
• Description: IC AMP AUDIO .04W AB 12FLIPCHIP
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4975EIJT

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 40mW x 2 @ 16 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, I²C, Standby, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 12-FlipChip
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5199-2; TS4975EIJT

Electrical Characteristics
20/36
Figure 49. SNR vs. power supply voltage
Figure 51. Frequency response
Figure 53. 3dB lower cut off frequency vs.
100
110
108
106
104
102
100
20
18
16
14
12
10
10
98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
8
6
4
2
0
0.1
20
input capacitance
Typical Input
Impedance
Vcc = 5V, 3.3V, 2.5V
G = +18dB
Vcc = 5V, 3.3V, 2.5V
G = +2dB
Out. mode 1 - 8
PHG, G = +18dB
Unweighted filter (20Hz to 20kHz)
THD+N < 0.5%
Tamb = 25 C
2.5
100
RL = 32
RL = 16
Maximum Input
Impedance
Input Capacitor Cin ( F)
Frequency (Hz)
Vcc (V)
3.3
1000
Output mode 1 - 8
RL = 32, 16
Cin = 330nF
SE, PHG
BW < 125kHz
Tamb = 25 C
Minimum Input
Impedance
All gain setting
Tamb=25 C
5
10000
1
Figure 50. SNR vs. power supply voltage
Figure 52. Current consumption vs. power
Figure 54. 3dB lower cut off frequency vs.
110
108
106
104
102
100
100
98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
6
5
4
3
2
1
0
10
1
0
100
No loads
Tamb = 25 C
Reset state
supply voltage
output capacitance
Out. mode 1 - 8
PHG, G = +18dB
Weighted filter type A
THD+N < 0.5%
Tamb = 25 C
2.5
1
RL = 32
RL = 16
RL=16
Output capacitor Cout ( F)
2
Vcc (V)
Vcc (V)
PHG, Out. Mode 1, 2, 3, 4
PHG, Out. mode 5, 6, 7, 8
3.3
RL=32
SE, Out. mode 1, 2, 3, 4
SE, Out. mode 5, 6, 7, 8
3
4
All gain setting
Tamb = 25 C
1000
5
5
TS4975