datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf





austriamicrosystems AG
austriamicrosystems AG

AS1705 Datasheet Preview

AS1705 Datasheet

1.8W Single-Channel Audio Power Amplifiers

No Preview Available !

AS1705 pdf
www.DataSheet4U.com
AS1702 - AS1705
1.8W Single-Channel Audio Power Amplifiers
Data Sheet
1 General Description
The AS1702 - AS1705 are single-channel differential
audio power-amplifiers designed to drive 4 and 8Ω
loads. The integrated gain circuitry of these amplifiers
and their small size make them ideal for 2.7- to 5V-pow-
ered portable audio devices.
The differential input design improves noise rejection
and provides common-mode rejection. A bridge-tied
load (BTL) design minimizes external component count,
while providing high-fidelity audio power amplification.
The devices deliver 1.8W continuous average power per
channel to a 4Ω load with less than 1% total harmonic
distortion (plus noise), while operating from a single 2.7
to 5V supply.
For reduced component designs, the devices are avail-
able with different gain levels as shown in Table 1.
Table 1. Standard Products
Model
Gain
AS1702 Adjustable (via external components)
AS1703
AV = 0dB
AS1704
AV = 3dB
AS1705
AV = 6dB
Integrated shutdown circuitry disables the bias genera-
tor and amplifiers, and reduces quiescent current con-
sumption to less than 100nA. The shutdown input can
be set active-high or active-low. All devices contain click-
and-pop suppression circuitry that reduces audible
clicks and pops during power-up and shutdown.
The AS1702 - AS1705 are pin compatible with the
LM4895 and the MAX9718A/B/C/D. The devices are
available in a 10-pin MSOP package and a 10-pin DFN
package.
Figure 1. Simplified Block Diagram
2 Key Features
! 2.7 to 5.5V (VCC) Single-Supply Operation
! THD+N: 1.8W into 4Ω at 1% (per Channel)
! Differential Input
! Adjustable Gain Option (AS1702)
! Internal Fixed Gain to Reduce External Component
Count (AS1703, AS1704, AS1705)
! <100nA Low-Power Shutdown Mode
! Click and Pop Suppression
! Pin-Compatible to National Semiconductor LM4895
(AS1705) and Maxim MAX9718A/B/C/D
! Operating Temperature Range: -40 to +85ºC
! Package Types
- 10-pin MSOP
- 10-pin DFN
3 Applications
The devices are ideal as audio front-ends for battery
powered audio devices such as MP3 and CD players,
mobile phones, PDAs, portable DVD players, and any
other hand-held battery-powered device.
Single Supply 2.7
to 5.5V
9
VCC
4
IN+
2
IN-
1
SHDN
3
SHDM
+
AS1702/AS1703/
AS1704/AS1705
10
OUT+
6
OUT-
7
GND
RL = 4 or 8Ω
www.austriamicrosystems.com
Revision 1.47
1 - 20



austriamicrosystems AG
austriamicrosystems AG

AS1705 Datasheet Preview

AS1705 Datasheet

1.8W Single-Channel Audio Power Amplifiers

No Preview Available !

AS1705 pdf
AS1702 - AS1705
Data Sheet - Pinout
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
SHDN 1
10 OUT+
IN- 2
SHDM 3
IN+ 4
AS1702/
AS1703/
AS1704/
AS1705
9 VCC
8 N/C
7 GND
BIAS 5
6 OUT-
10-pin MSOP Package
www.DataSheet4U.com
SHDN 1
IN- 2
SHDM 3
IN+ 4
BIAS 5
10 OUT+
AS1702V/
AS1703V/
AS1704V/
AS1705V
9 VCC
8 N/C
7 GND
10-pin DFN Package
6 OUT-
Pin Descriptions
Table 2. Pin Descriptions – MSOP-10 and TDFN-10 Package
Pin Name
Description
1
SHDN
Shutdown Input. The polarity of this pin is dependent on the state of pin SHDM.
2 IN- Inverting Input
Shutdown-Mode Polarity Input. This pin controls the polarity of pin SHDN.
3
SHDM
Connect this pin high for an active-high SHDN input. Connect this pin low for an
active-low SHDN input (see Table 6 on page 11).
4 IN+ Non-Inverting Input
5
BIAS
DC Bias Bypass
6
OUT-
Bridge Amplifier Negative Output
7
GND
Ground
8 N/C Not Connected. No internal connection.
9 VCC Power Supply
10
OUT+
Bridge Amplifier Positive Output
www.austriamicrosystems.com
Revision 1.47
2 - 20


Part Number AS1705
Description 1.8W Single-Channel Audio Power Amplifiers
Maker austriamicrosystems AG
Total Page 20 Pages
PDF Download
AS1705 pdf
AS1705 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 AS1701 1.6W Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1701 pdf
2 AS1702 1.8W Single-Channel Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1702 pdf
3 AS1703 1.8W Single-Channel Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1703 pdf
4 AS1704 1.8W Single-Channel Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1704 pdf
5 AS1705 1.8W Single-Channel Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1705 pdf
6 AS1706 1.6W Audio Power Amplifiers austriamicrosystems AG
austriamicrosystems AG
AS1706 pdf





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy