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TS4621B Datenblatt(PDF) 5 Page - STMicroelectronics

Teilenummer TS4621B
Bauteilbeschribung  High-performance class-G stereo headphone amplifier with I2C volume control
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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TS4621B Datenblatt(HTML) 5 Page - STMicroelectronics

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TS4621B
List of figures
Doc ID 022194 Rev 2
5/48
Figure 49.
THD+N vs. frequency RL = 32
Ω, out-of-phase, VCC = 4.8 V. . . . . . . . . . . . . . . . . . . . . . . 20
Figure 50.
THD+N vs. frequency RL = 47
Ω, in-phase, VCC = 2.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 51.
THD+N vs. frequency RL = 47
Ω, out-of-phase, VCC = 2.5 V. . . . . . . . . . . . . . . . . . . . . . . 20
Figure 52.
THD+N vs. frequency RL = 47
Ω, in-phase, VCC = 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 53.
THD+N vs. frequency RL = 47
Ω, out-of-phase, VCC = 3.6 V. . . . . . . . . . . . . . . . . . . . . . . 21
Figure 54.
THD+N vs. frequency RL = 47
Ω, in-phase, VCC = 4.8 V . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 55.
THD+N vs. frequency RL = 47
Ω, out-of-phase, VCC = 4.8 V. . . . . . . . . . . . . . . . . . . . . . . 21
Figure 56.
THD+N vs. frequency RL = 10 k
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 57.
THD+N vs. frequency RL = 600
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 58.
THD+N vs. output voltage RL = 10 k
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 59.
THD+N vs. output voltage RL = 600
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 60.
THD+N vs. input voltage, HiZ left and right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 61.
CMRR vs. frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 62.
PSRR vs. frequencyVCC = 2.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 63.
PSRR vs. frequencyVCC = 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 64.
PSRR vs. frequencyVCC = 4.8 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 65.
Output signal spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 66.
Crosstalk vs. frequencyRL = 16
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 67.
Crosstalk vs. frequencyRL = 32
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 68.
Crosstalk vs. frequencyRL = 47
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 69.
Crosstalk vs. frequencyRL = 10 k
Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 70.
Wake-up time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 71.
Shutdown time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 72.
I²C write operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 73.
I²C read operations1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 74.
Flowchart for short-circuit detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 75.
TS4621B architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 76.
Efficiency comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 77.
Class-G operating with a music sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 78.
Typical application schematic with IEC 61000-4-2 ESD protection . . . . . . . . . . . . . . . . . . 36
Figure 79.
Single-ended input configuration1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 80.
Single-ended input configuration 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 81.
Incorrect ground connection for single-ended option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 82.
Correct ground connection for single-ended option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 83.
Common mode sense layout example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 84.
Demonstration board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 85.
Copper layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 86.
Copper layer and overlay layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 87.
TS4621B footprint recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 88.
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 89.
Marking (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 90.
Flip-chip - 16 bumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 91.
Device orientation in tape pocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45


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