CXDS4221Q是一款高性能、双单刀双掷（SPTT）模拟开关，在4.5V VCC下具有3Ω（典型）的低Ron。CXDS4221Q在2.3V至5.5V的宽VCC范围内工作，专为通电前断开而设计。选择输入与TTL级兼容。
CXDS4221Q还具有智能电路，即使控制电压低于VCC电源电压，也能将VCC泄漏电流降至最低。此功能适合移动手机应用，允许直接与基带处理器通用IO接口，耗电量最小。也就是说，在实际应用中不需要额外的设备来改变控制水平，使之与VCC相同。
CXDS4221Q有QFN1418-10L包装。标准产品无铅无卤。
供电电压：2.3~5.5V
超低导通电阻：3Ω@VCC=4.5V
高关隔离度：-45dB@10MHz
串扰抑制：-60dB@10MHz
-3dB带宽：660MHz@CL=0pF
轨对轨信号范围
合前断开开关
扩展控制输入范围内的低静态电流
IO对地：±8KV
接地电源：±5KV
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[ CXDS4221Q ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
The CXDS4221Q is a high performance, dual Single Pole Double Throw (SPDT) analog switch that features low Ron of 3Ω (typical) at 4.5V VCC. The CXDS4221Q operates over a wide VCC range of 2.3V to 5.5V and is designed for break-before-make operation. The select input is TTL-level compatible.
CXDS4221Q is also featured with smart circuitry to minimize VCC leakage current even when the control voltage is lower than VCC supply voltage. This feature suits mobile handset applications by allowing direct interface with baseband processor general-purpose IO with minimal battery consumption. In other word, there is no need of additional device to shift control level to be the same as that of VCC in real application.
The CXDS4221Q is available in QFN1418-10L package. Standard product is Pb-Free and halogen-Free.
二.产品特点
Supply voltage : 2.3 ~ 5.5V
ultra-low On Resistance : 3Ω @ VCC = 4.5V
High Off isolation : -45dB @ 10MHz
Crosstalk Rejection : -60dB @ 10MHz
-3dB Bandwidth : 660MHz@ CL = 0pF
Rail-to-Rail Signal Range
Break-Before-Make Switching
Low quiescent current over an Expanded Control Input Range
HBM JEDEC: JESD22-A114
IO to GND : ± 8KV
Power to GND : ± 5KV
三.应用范围
Cell phones, PDA, Digital Camera and Notebook
LCD Monitor, TV and Set-Top Box
Audio and Video Signal Routing
Other electronics equipments
四.技术规格书（产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
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| Product | Configuration | VIN | IQ | BW@-3dB | THD+N | Crosstalk | OFF | Size | Package | |
| (Min.) | (Max.) | (Max.) | (Typ.) | (Typ.) | (Typ.) | (Typ.) | (L×W) | |||
| (V) | (uA) | (Ω) | (dB) | (dB) | (dB) | (mm) | ||||
| CXDS4219B | SPDT | 2.3 | 5.5 | 1 | 400 | -70 | -68 | -69 | 2.1 x 2.3 | SOT-363 |
| CXDS4220C | 4-Lane MIPI | 2.7 | 4.5 | 120 | 1500 | -43 | -39 | 2.4 x 2.4 | WLCSP-36B | |
| CXDS4221Q | Dual SPDT | 2.3 | 5.5 | 1 | 660 | -70 | -60 | -45 | 1.4 x 1.8 | QFN1418-10L |
| CXDS4222Q | 3:1 DPDT | 2.3 | 5.5 | 75 | 1200 | - | -57 | -57 | 1.8 x 1.8 | QFN1818-12L |
| CXDS4223Q | 4:1 DPDT | 2.3 | 5.5 | 80 | 1200 | - | -30 | -50 | 1.8 x 2.6 | QFN1826-16L |
| CXDS4224QA | 2:1 DPDT | 2.3 | 5.5 | 55 | 200 | - | -70 | -70 | 1.4 x 1.8 | QFN1418-10L |
| CXDS4224QB | 2:1 DPDT | 2.3 | 5.5 | 55 | 200 | - | -70 | -70 | 2.1 x 1.6 | QFN2116-10L |
| CXDS4225Q | 2:1 DPDT | 2.3 | 5.5 | 1 | 800 | - | -47 | -36 | 1.4 x 1.8 | QFN1418-10L |
| CXDS4226Q | 2:1 DPDT | 2.3 | 4.5 | 1 | 800 | - | -47 | -36 | 2.1 x 1.6 | QFN2116-10L |
| CXDS4227Q | 2:1 DPDT | 2.5 | 4.5 | 1 | 800 | - | -47 | -38 | 1.4 x 1.8 | QFN1418-10L |
