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參數(shù)資料
| 型號(hào)： | AS1747-BTDT-1K |
| 廠商： | ams |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SWITCH DUAL SPDT 10TDFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 音頻開關(guān) |
| 電路： | 2 x SPDT |
| 導(dǎo)通狀態(tài)電阻： | 850 毫歐 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 1.8 V ~ 5.5 V |
| 電流 - 電源： | 10nA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 10-TDFN（3x3） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AS1747-BTDT-1KDKR |
AS1747, AS1748, AS1749, AS1750
Low-Vo ltage, Dual SPDT, A udio Clickless Switches with
Negative Rail Capability
Revision 1.02
1 - 16
Data sheet
1 General Description
The SPDT (single-pole/double-throw) switches AS1747,
AS1748, AS1749 and AS1750 allow signals below
ground to pass through without distortion. These analog
switches are ideal for switching audio signals, due to
their supply voltage from +1.8V to +5.5V and their low
0.4
Ω on-resistance.
An included comparator offers the AS1748 and AS1750
with headphone detection or mute/send key function.
To reduce click-and-pop sounds when switching
between pre-charged points the AS1749 and AS1750
have an internal shunt switch. This shunt switch auto-
matically discharges any capacitance at the NO and NC
connection points.
This SPDT switch is available in space-saving 10-pin
TDFN 3x3 packages and operate over the -40C to
+85C extended temperature range.
Figure 1. Typical Operating Circuit
2 Key Features
!
Distortion -Free Negative Signal Throughput Down
to VCC - 5.5V
!
Comparator for Headphone or Mute Detection
(AS1748/AS1750)
!
Internal Shunt Resistor Reduces Click/Pop
(AS1749/AS1750)
!
Low On-Resistance (RON)
0.4
Ω at +2.7V Supply
!
0.25
Ω On-Resistance Flatness
!
0.03
Ω On-Resistance Matching
!
+1.8V to +5.5V Supply Voltage
!
-90dB Crosstalk (100kHz)
!
-65dB Off-Isolation (100kHz)
!
0.01% Total Harmonic Distortion
!
Available in 10-pin TDFN 3x3, 16-pin TQFN 3x3,
and 12-Bump WL-CSP Packages
3 Applications
The device is ideal for cell phones, PDAs and hand-held
devices, notebook computers and MP3 players.
Audio
Source 1
Audio
Source 2
Out+
Out-
Out+
Out-
CMPO
NO2
NC2
NO1
NC1
Mute
IN1
COM1
IN2
COM2
CMP-
Mute
Button
V+
Shunt
Switch
+
-
8
Ω
Speaker
Input
Select
V+/3
ams
AG
Technical
content
still
valid
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1747-BWLT | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability |
| AS1748 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability |
| AS1748-BQFR | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability |
| AS1748-BQFT | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability |
| AS1748-BWLT | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability |
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