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PDF AS1747 Data sheet ( Hoja de datos )
| Número de pieza | AS1747 | |
| Descripción | Low-Voltage Dual SPDT Audio Clickless Switch | |
| Fabricantes | austriamicrosystems AG | |
| Logotipo |  |
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Datasheet
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AS1747
L o w - Vo l ta g e , D u a l S P D T, A u d i o C l i c k l e s s S w i t c h
with Negative Rail Capability
1 General Description
2 Key Features
The SPDT (single-pole/double-throw) switch AS1747
allows signals below ground to pass through without dis-
tortion. This analog switch is ideal for switching audio
signals, due to the supply voltage from +1.8V to +5.5V
and the low 0.4Ω on-resistance.
This SPDT switch is available in space-saving 10-pin
TDFN 3x3 packages and operate over the -40ºC to
+85ºC extended temperature range.
! Distortion -Free Negative Signal Throughput Down
to VCC - 5.5V
! Low On-Resistance (RON)
0.4Ω at +2.7V Supply
! 0.25Ω On-Resistance Flatness
! 0.03Ω On-Resistance Matching
! +1.8V to 5.5V Supply Voltage
! -90dB Crosstalk (100kHz)
! -65dB Off-Isolation (100kHz)
! Available in 10-pin TDFN 3x3 Packages
3 Applications
The device is ideal for cell phones, PDAs and hand-held
devices, notebook computers and MP3 players.
Figure 1. AS1747 - Typical Operating Circuit
Audio
Source 1
Out+
Out-
NC1
NO1
NC2
Out+
Audio
Source 2 Out-
NO2
AS1747
COM1
IN1 Input
Select
8Ω
Speaker
IN2
COM2
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1 page  
AS1747
Datasheet - Electrical Characteristics
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Table 3. Electrical Characteristics (Continued)
Symbol
Parameter
Condition
CCOM_(ON) COM On-Capacitance
Digital I/O (IN_)
f = 1MHz, VCOM_ = 0.5VP-P, DC Bias = 0
VIH
Input Logic High
Voltage
VCC = 2.7V to 3.6V
VCC = 4.2V to 5.5V
VIL
Input Logic Low
Voltage
VCC = 2.7V to 3.6V
VCC = 4.2V to 5.5V
IIN Input Leakage Current
Power Supply
VIN_ = 0V to VCC, VCC = 5.5V
VCC Power-Supply Range
ICC Supply Current
VCC = 5.5V, VIN_ = 0V or VCC
1. Guaranteed by design
Min Typ Max Unit
196 pF
1.4
V
2.0
0.5
V
0.8
-1 +1 µA
1.8 5.5
0.01 1
V
µA
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5 Page 
AS1747
Datasheet - Package Drawings and Markings
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11 Package Drawings and Markings
The devices are available in 10-pin TDFN 3x3 package.
Figure 19. 10-pin TDFN 3x3 Package Dimensions
D
B
SEE
DETAIL B
D2
D2/2
L
PIN 1 INDEX AREA
(D/2 xE/2)
DETAIL B
aaa C 2x
TOP VIEW
e
Terminal Tip
PIN 1 INDEX AREA
(D/2 xE/2)
ccc C
0.08 C
N N-1
e
(ND-1) X e
BTM VIEW
K
b
bbb C A B
ddd C
SIDE VIEW
C
SEATING
PLANE
Datum A or B
ODD TERMINAL SIDE
Symbol
A
A1
A3
θ
aaa
bbb
ccc
ddd
eee
ggg
Min Nom Max
0.70 0.75 0.80
0.00 0.02 0.05
0.20 REF
0º --- 14º
0.15
0.10
0.10
0.05
0.08
0.10
Symbol
D BSC
E BSC
D2
E2
L
K
b
e
N
ND
Min
2.20
1.40
0.30
0.20
0.18
Nom
3.00
3.00
---
---
0.40
---
0.25
0.50
10
5
Max
2.70
1.75
0.50
---
0.30
Notes:
1. Figure 19 is shown for illustration only.
2. Dimensioning and tolerancing conform to ASME Y14.5M-1994.
3. All dimensions are in millimeters, angle is in degrees.
4. N is the total number of terminals.
5. ND refers to the maximum number of terminals on D side.
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11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AS1747.PDF ] | |
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