TS4621ML STMICROELECTRONICS [STMicroelectronics], TS4621ML Datasheet - Page 4

• Manufacturer Part Number: TS4621ML
• Description: High-performance class-G stereo headphone amplifier
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

List of figures
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THD+N vs. frequency, R
THD+N vs. frequency, R
THD+N vs. frequency, R
THD+N vs. frequency, R
PSRR vs. frequency - V
PSRR vs. frequency - V
Output signal spectrum (V
Crosstalk vs. frequency - R
Crosstalk vs. frequency - R
Crosstalk vs. frequency - R
Crosstalk vs. frequency - R
CMRR vs. frequency, 32 Ω, V
CMRR vs. frequency, 32 Ω, V
Wake-up time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TS4621ML architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Efficiency comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Class-G operating with a music sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Typical application schematic with IEC 61000-4-2 ESD protection . . . . . . . . . . . . . . . . . . 30
Single-ended input configuration1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Single-ended input configuration 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Incorrect ground connection for single-ended option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Correct ground connection for single-ended option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Common-mode sense layout example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TS4621ML footprint recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Marking (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Flip-chip - 16 bumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Device orientation in tape pocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CC
CC
L
L
L
L
= 47 Ω, in-phase, V
= 47 Ω, out-of-phase, V
= 47 Ω, in-phase, V
= 47 Ω, out-of-phase, V
CC
= 3.6 V, gain = 0 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
= 3.6 V, gain = +6 dB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
L
L
L
L
= 32 Ω, V
= 32 Ω, V
= 47 Ω, V
= 47 Ω, V
= 3.6 V, load = 32 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Doc ID 023181 Rev 1
CC
CC
= 36 V, 0 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
= 36 V, 6 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CC
CC
CC
CC
= 3.6 V, gain = 0 dB . . . . . . . . . . . . . . . . . . . . . 23
= 3.6 V, gain = +6 dB . . . . . . . . . . . . . . . . . . . . 23
= 3.6 V, gain = 0 dB . . . . . . . . . . . . . . . . . . . . . 23
= 3.6 V, gain = +6 dB . . . . . . . . . . . . . . . . . . . . 23
CC
CC
= 3.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . 21
= 4.8 V. . . . . . . . . . . . . . . . . . . . . . . . . . 21
CC
CC
= 3.6 V . . . . . . . . . . . . . . . . . . . . . . 21
= 4.8 V . . . . . . . . . . . . . . . . . . . . . . 22
TS4621ML