TS4621ML STMICROELECTRONICS [STMicroelectronics], TS4621ML Datasheet - Page 7

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

TS4621ML
2
Typical application schematic
Figure 1.
Table 3.
Negative right input
Positive right input
Negative left input
Pin number
Positive left input
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
D1
D2
D3
D4
Typical application schematic for the TS4621ML
TS4621ML pin description
Pin name
HPVDD
VOUTR
VOUTL
AGND
AVDD
PVSS
GAIN
INR+
CMS
INL+
INR-
INL-
SW
EN
C1
C2
Cin
1 uF
Cin
1 uF
Cin
1 uF
Cin
1 uF
InL+
InR-
InL-
InR+
EN
Interface
Doc ID 023181 Rev 1
Switching node of the buck converter
Analog supply voltage, connect to battery
Output signal for left audio channel
Negative input signal for left audio channel
Device ground
Flying capacitor terminal for internal negative supply generator
Buck converter output, power supply for amplifier
Positive input signal for left audio channel
Flying capacitor terminal for internal negative supply generator
Negative supply generator output
Common-mode sense, to be connected as close as possible to the
ground of headphone/line out plug
Positive input signal for right audio channel
Amplifier enable
Amplifier gain select
Output signal for right audio channel
Negative input signal for right audio channel
GAIN
2.2 uF
2.2 uF
Cs
Css
PVss
+
-
+
-
Negative
supply
C1
AVdd
Vbat
detector
C2
Positive
detector
C12
2.2 uF
supply
Level
Level
Pin definition
Sw
HpVdd
AGnd
VoutL
VoutR
CMS
3.3 uH
Typical application schematic
L1
12 ohms min.
12 ohms min.
Ct
10 uF
Rout
Rout
3
2
1
Cout
0.8 nF min.
Cout
0.8 nF min.
J1
AM06119
7/40