TS4604 Datasheet, PDF (1/31 Pages) STMicroelectronics – Stereo headset driver and analog audio line driver with integrated reference to ground

TS4604
Stereo headset driver and analog audio line driver with
integrated reference to ground
Features
■ Operating from V_CC = 3 V up to 4.8 V single
supply operation
■ Line driver stereo differential inputs
■ External gain setting resistors
■ Space-saving package: TSSOP28 pitch
0.65 mm
■ Dedicated shutdown control per function
■ 100 mW headset drive into a 16 Ω load
■ 90 dB high PSRR on headset drive
■ Two internal negative supplies to ensure
ground-referenced, headset and line driver
capless outputs
■ Internal undervoltage mute
■ Line driver 2 Vrms typ. Output voltage across
entire supply voltage range
■ Pop-&-click reduction circuitry, thermal
shutdown and output short-circuit protection
Applications
■ PDP/LCD TV
■ Set-top boxes
Description
The TS4604 is a stereo ground-referenced output
analog line driver and stereo headset driver
whose design allows the output DC-blocking
capacitors to be removed, thus reducing
component count. The TS4604 drives 2 Vrms into
a 5 kΩ load or more. The device has differential
inputs and uses external gain setting resistors.
The TS4604 delivers up to 100 mW per channel
into a 16 Ω load. All outputs of the TS4604 include
±8 kV human body model ESD protection cells.
TSSOP28
Pin connections (top view)
+LDL
1
-LDL
2
OUTLDL
3
AGND
4
ENLD
5
PVSSLD
6
CNLD
7
CNHP
8
PVSSHP
9
ENHP
10
AGND
11
OUTHPL
12
-HPL
13
+HPL
14
28
+LDR
27
-LDR
26
OUTLDR
25
EUVP
24
PGND
23
PVCCLD
22
CPLD
21
CPHP
20
PVCCHP
19
PGND
18
NC
17
OUTHPR
16
-HPR
15
+HPR
October 2010
Doc ID 17913 Rev 1
1/31
www.st.com
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