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| 型号： | MAX4588EAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC RF/VIDEO MUX DUAL 4CH 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 功能： | 视频多路复用器/多路分解器 |
| 电路： | 2 x 4:1 |
| 导通状态电阻： | 60 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 12 V，± 2.7 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
Detailed Description
Logic-Level Translators
The MAX4588 is constructed of high-frequency “T”
switches, as shown in Figure 8. The logic-level inputs
are translated by amplifier A1 into a V+ to V- logic sig-
nal that drives amplifier A2. Amplifier A2 drives the
gates of N-channel MOSFETs N1 and N2 from V+ to V-,
turning them fully on or off. The same signal drives
inverter A3 (which drives the P-channel MOSFETs P1
and P2, turning them fully on or off) from V+ to V-, and
turns the N-channel MOSFET N3 on and off. The logic-
level threshold is determined by VL and GND.
Switch On Condition
When the switch is on, MOSFETs N1, N2, P1, and P2
are on and MOSFET N3 is off (Figure 8). The signal
path is COM_ to NO_, and because both N-channel
and P-channel MOSFETs act as pure resistances, it is
symmetrical (i.e., signals may pass in either direction).
The off MOSFET, N3, has no DC conduction, but has a
small amount of capacitance to GND. The four on
MOSFETs also have capacitance to ground that,
together with the series resistance, forms a lowpass fil-
ter. All of these capacitances are distributed evenly
along the series resistance, so they act as a transmis-
sion line rather than a simple R-C filter. The MAX4588’s
construction allows an exceptional 180MHz bandwidth
when the switches are on.
Typical attenuation in 75
systems is 2.5dB and is rea-
sonably flat up to 50MHz. Higher-impedance circuits
show even lower attenuation (and vice versa), but
slightly lower bandwidth due to the increased effect of
the internal and external capacitance and the switch’s
internal resistance.
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
______________________________________________________________________________________
13
A1
A2
A3
P1
N3
N1
V-
GND
INPUT
VCC
V+
COM_
NO_
N2
P2
NORMALLY OPEN SWITCH CONSTRUCTION
ESD DIODES
ON GND, NO_,
AND COM_
tCSS
CS
SCLK
DIN
DOUT
NOTE: ALL INPUT SIGNALS ARE SPECIFIED WITH tR AND tF < 10ns.
TIMING IS MEASURED FROM 50% OF DIGITAL SIGNAL.
tDS
tDH
A0
A1
A2
DISABLE
tDO
tCH
tCL
tCSH
MAX4588
Figure 7. Serial Timing Diagram
Figure 8. T-Switch Construction
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4588EAI+ | 功能描述:视频开关 IC Dual 4Ch RF Video MUX RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4588EAI+T | 功能描述:视频开关 IC Dual 4Ch RF Video MUX RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4588EAI-T | 功能描述:视频开关 IC RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4588EPI | 功能描述:视频开关 IC RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX4588EWI | 功能描述:视频开关 IC RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
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