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TS4890IS Datasheet

  • TS4890IS

  • AUDIO AMPLIFIER|SINGLE|BIPOLAR|TSSOP|8PIN|PLASTIC

  • 432.93KB

  • 31頁(yè)

  • ETC

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TS4890
RAIL TO RAIL OUTPUT
1W
AUDIO POWER AMPLIFIER WITH
STANDBY MODE
s
OPERATING FROM
V
CC
= 2.2V to 5.5V
s
1W
RAI L TO RAIL OUTPUT POWER @
Vcc=5V, THD=1%, f=1kHz, with
8
鈩?/div>
Load
MODE
(10nA)
PIN CONNECTIONS
(Top View)
s
ULTRA LOW CONSUMPTION IN STANDBY
s
75dB
PSRR @ 217Hz from 5 to 2.2V
s
POP & CLICK REDUCTION CIRCUITRY
s
ULTRA LOW DISTORTION
(0.1%)
s
UNITY GAIN STABLE
s
AVAILABLE IN
MiniSO8 & SO8
DESCRIPTION
The TS4890 (MiniSO8 & SO8) is an Audio Power
Amplifier capable of delivering 1W of continuous
RMS. ouput power into 8
鈩?/div>
load @ 5V.
This Audio Amplifier is exhibiting 0.1% distortion
level (THD) from a 5V supply for a Pout = 250mW
RMS. An external standby mode control reduces
the supply current to less than 10nA. An internal
thermal shutdown protection is also provided.
The TS4890 have been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
APPLICATIONS
TS4890IS, TS4890IST - MiniSO8
Standby
Bypass
V
IN
+
V
IN-
1
2
3
4
8
7
6
5
V
OUT
2
GND
V
CC
V
OUT1
TS4890ID, TS4890IDT - SO8
Standby
Bypass
V
IN
+
V
IN-
1
2
3
4
8
7
6
5
V
OUT
2
GND
V
CC
V
OUT1
Audio
Input
Cin
Rin
4
3
Vin-
Vin+
-
+
Vcc
s
Mobile Phones (Cellular / Cordless)
s
Laptop / Notebook Computers
s
PDAs
s
Portable Audio Devices
ORDER CODE
Part Number
TS4890IST
TS4890IDT
Temperature
Range
-40, +85擄C
Package
S
鈥?/div>
鈥?/div>
D
TYPICAL APPLICATION SCHEMATIC
Cfeed
Rfeed
Vcc
6
Cs
Vout1 5
RL
8 Ohms
Vcc
2
1
Bypass
Standby
Bias
GND
TS4890
-
Av=-1
+
Vout2
8
Rstb
Cb
7
S =
MiniSO Package (MiniSO) - also available in Tape & Reel (ST)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
November 2001
1/31

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